Consulta: subjectFacets:"Land use"
Registros recuperados: 311
Data/hora: 01/06/2024 07:37:15

Estudo do uso e cobertura do solo e do escoamento superficial na bacia hidrográfica do Ribeirão Serragem no município de Tremembé, SP
Provedor de dados: 25
Autores: Rodrigues, Neyrianne d´Angelis; Batista, Getulio Teixeira; Targa, Marcelo dos Santos.
O presente trabalho objetivou avaliar o escoamento superficial da área que engloba os afluentes do Ribeirão Serragem no município de Tremembé, SP no vale do Paraíba do Sul, localizada na parte a montante da barragem da Fazenda Maristela, bem como mapear o uso do solo da mesma para subsidiar possíveis intervenções visando o uso sustentável dessa bacia. Foram empregadas técnicas de geoprocessamento com o uso de ferramentas do SPRING para a caracterização do uso e ocupação do solo, da caracterização física da bacia e para o cálculo da precipitação efetiva. Os resultados indicaram que a bacia do Ribeirão Serragem apresenta um bom estado de conservação, levando em consideração que ocorre o predomínio de florestas em todas as classes de APP com maior predomínio...
Tipo: Article
Palavras-chave: Basin; Flow; Land use; Environmental science.
Ano: 2012
URL: http://hdl.handle.net/2315/242

Hidrogramas para a bacia hidrográfica do ribeirão Serragem no município de Tremembé, SP
Provedor de dados: 25
Autores: Targa, Marcelo dos Santos; Batista, Getulio Teixeira; Mostarda Neto, Nazareno; Maria Filho, Paulo José.
O presente trabalho objetivou determinar os Hidrogramas de Precipitações Efetivas Máximas a partir do método do Hidrograma Unitário (HU) da bacia do Ribeirão Serragem no município de Tremembé, SP no vale do Paraíba do Sul, localizada na parte a montante da barragem da Fazenda Maristela. Foram empregadas técnicas de geoprocessamento com o uso de ferramentas do SPRING para a caracterização do uso e ocupação do solo e caracterização física da bacia para o cálculo da Precipitação efetiva (Pe) resultante de chuvas máximas sobre a bacia simuladas para 2, 5, 10, 15, 20, 25, 50, 100 e 200 anos. O cálculo da Pe foi realizado pelo método do Curva Número (CN). Os resultados indicaram que a bacia do Ribeirão Serragem apresenta um bom estado de conservação, levando em...
Tipo: Article
Palavras-chave: Bacia; Ciências ambientais; Escoamento; Uso do solo; Basin; Environmental science; Land use; Water flow.
Ano: 2015
URL: http://hdl.handle.net/2315/284

MAPEAMENTO DO USO DO SOLO COM DADOS DO SENSOR ASTER PARA DELIMITAÇÃO DE FRAGMENTOS FLORESTAIS
Provedor de dados: 25
Autores: Horikoshi, Andréa Sanae; Batista, Getulio Teixeira; Catelani, Celso de Souza; Fisch, Gilberto Fernando.
Resumo. O processo histórico de ocupação e transformação do espaço geográfico na região sudeste do Brasil, numa área denominada Alto Vale do Paraíba no Estado de São Paulo, deixou como legado um modelo de uso da terra baseado no desmatamento e na fragmentação florestal. Atualmente essa fragmentação está aumentando numa curva crescente e contínua devido aos efeitos do crescimento populacional dos centros regionais próximos. Isso fomenta o aumento da procura por propriedades situadas na zona rural e, conseqüentemente, geram pressões econômicas e especulação imobiliária que determinam significativas mudanças na distribuição fundiária da região. Vários estudos investigaram os efeitos da fragmentação florestal em regiões e áreas diferentes. Entretanto, esses...
Tipo: Article
Palavras-chave: Fragmento Florestal; Uso da terra; Atlantic Forest; Land use; Thermal remote sensing; ASTER sensor; Forest fragmentation; Sensoriamento remoto.
Ano: 2006
URL: http://hdl.handle.net/2315/49

Análisis multitemporal de la dinámica en el cambio de uso del suelo rural-urbano en la región de Atlixco, Puebla.
Provedor de dados: 32
Autores: Luna Fernández, Víctor Genaro.
La presente investigación se llevó a cabo en la región de Atlixco, Puebla, en las comunidades de San Pedro Benito Juárez y Nexatengo. Tuvo como objetivo conocer la dinámica en el cambio de uso del suelo en la región de Atlixco durante el periodo de 1977 al 2007 y la relación que existe en función de los factores sociales, económicos, agrícolas y ambientales. La importancia de estudiar estas relaciones desde un enfoque sistémico radica en tratar de comprender el funcionamiento de la sociedad desde una perspectiva holística e integradora, en donde lo importante son las relaciones entre los componentes, desde el punto de interés del todo y no solo el de las partes que son inherentes al problema. Debido a que el problema analizado se encuentra dentro de un...
Palavras-chave: Análisis Multitemporal; Cambio de uso del suelo; Imágenes de satélite; Rural-urbano; SIG's; GIS; Land use; Multi-temporal analysis; Rural-urban; Satellite imagery; EDAR; Estrategias para el Desarrollo Agrícola Regional; Doctorado.
Ano: 2011
URL: http://hdl.handle.net/10521/651

Dinámica y ordenamiento de uso de la tierra en el oriente del municipio de Texcoco, Estado de México
Provedor de dados: 32
Autores: Pérez Miranda, Ramiro.
Se presenta una propuesta de ordenamiento de uso de la tierra que integra diferentes  componentes, siendo los más importantes un análisis de cambios de uso y la proyección de los mismos, además de una evaluación física de la tierra. El análisis de cambio de uso de la tierra se apoyó en una interpretación visual de imágenes capturadas en los años 1993 y 2004. Posteriormente, empleando técnicas de análisis multicriterio espacial, cadenas de Markov y autómatas celulares se proyectaron los cambios al año 2014 en un ambiente de SIG. Mediante una adaptación de la metodología de evaluación de tierras propuesta por la FAO se realizó la evaluación física de la misma en el oriente del municipio de Texcoco. Adicionalmente, se desarrolló una metodología para promover...
Palavras-chave: Ordenamiento territorial; Uso de la tierra; Escenarios futuros; Cambios de uso de la tierra; Evaluación física de la tierra Land use planning; Land use; Future scenarios; Land use change; Physical land assessment.
Ano: 2012
URL: http://hdl.handle.net/10521/847

Legislación, cambio de uso de suelo y reforestación en manglares de Cárdenas, Tabasco.
Provedor de dados: 32
Autores: Hernández Melchor, Gloria Isela.
En México, las causas de la deforestación del manglar son diversas al igual que sus efectos, lo que repercute en el aumento de los niveles de marginación en comunidades que dependen de la pesca como su principal actividad. Por lo que se considera necesario generar información local y regional en donde se delimiten las causas antrópicas que dan origen a la perdida de los manglares, para identificar posibles alternativas que permitan reducir su deforestación. En este sentido el presente trabajo tuvo como objetivo identificar las acciones antrópicas que repercuten en la deforestación de los manglares de la costa de Tabasco, mediante la revisión de las leyes aplicables al manglar, mismas que fueron contrastadas con las actividades económicas que se desarrollan...
Palavras-chave: Manglar; Legislación; Uso de suelo; Deforestación; Cambio climático; Mangrove; Legislation; Land use; Deforestation; Climate change; Agroecosistemas Tropicales; Doctorado.
Ano: 2013
URL: http://hdl.handle.net/10521/2356

Estudio de mercado del servicio ambiental hidrológico en la cuenca de Tapalpa, Jalisco
Provedor de dados: 32
Autores: López Paniagua, Cristopher.
Se realizó un estudio de mercado de los servicios ambientales hidrológicos (SAH) en la cuenca de Tapalpa, Jalisco, México, cuya superficie es de 21,000 ha, donde el 44% es de uso forestal. Para determinar la oferta hidrológica se utilizó el modelo hidrológico SWAT (soil and water assesment tool, herramienta de valoración de suelo y agua) que presentó un buen ajuste (R2 = 0.85) al ser calibrado con la producción de agua en una de las cinco subcuencas que integran el área de estudio. El análisis de demanda indica que existe un superávit del recurso hídrico (19,792,015 m3/año), ya que solamente se aprovecha el 54% (23,171,885 m3/ha) de la oferta total (42,963,900 m3/ha). De ésta, el 93% seutiliza en el sector agrícola, principalmente en la producción de...
Tipo: Tesis
Palavras-chave: Disponibilidad a pagar; Servicios ambientales; Costo de oportunidad; Uso del suelo; Oferta de agua; Maestría; Forestal; Willingness to paid; Environmental services; Opportunity cost; Land use; Supply of water.
Ano: 2007
URL: http://hdl.handle.net/10521/1606

Dinámica y ordenamiento de uso de la tierra en el oriente del municipio de Texcoco, Estado de México
Provedor de dados: 32
Autores: Pérez Miranda, Ramiro.
Se presenta una propuesta de ordenamiento de uso de la tierra que integra diferentes  componentes, siendo los más importantes un análisis de cambios de uso y la proyección de los mismos, además de una evaluación física de la tierra. El análisis de cambio de uso de la tierra se apoyó en una interpretación visual de imágenes capturadas en los años 1993 y 2004. Posteriormente, empleando técnicas de análisis multicriterio espacial, cadenas de Markov y autómatas celulares se proyectaron los cambios al año 2014 en un ambiente de SIG. Mediante una adaptación de la metodología de evaluación de tierras propuesta por la FAO se realizó la evaluación física de la misma en el oriente del municipio de Texcoco. Adicionalmente, se desarrolló una metodología para promover...
Palavras-chave: Ordenamiento territorial; Uso de la tierra; Escenarios futuros; Cambios de uso de la tierra; Evaluación física de la tierra Land use planning; Land use; Future scenarios; Land use change; Physical land assessment.
Ano: 2012
URL: http://hdl.handle.net/10521/920

Dinámica y ordenamiento de uso de la tierra en el oriente del municipio de Texcoco, Estado de México
Provedor de dados: 32
Autores: Pérez Miranda, Ramiro.
Se presenta una propuesta de ordenamiento de uso de la tierra que integra diferentes componentes, siendo los más importantes un análisis de cambios de uso y la proyección de los mismos, además de una evaluación física de la tierra. El análisis de cambio de uso de la tierra se apoyó en una interpretación visual de imágenes capturadas en los años 1993 y 2004. Posteriormente, empleando técnicas de análisis multicriterio espacial, cadenas de Markov y autómatas celulares se proyectaron los cambios al año 2014 en un ambiente de SIG. Mediante una adaptación de la metodología de evaluación de tierras propuesta por la FAO se realizó la evaluación física de la misma en el oriente del municipio de Texcoco. Adicionalmente, se desarrolló una metodología para promover...
Tipo: Tesis
Palavras-chave: Ordenamiento territorial; Uso de la tierra; Escenarios futuros; Cambios de uso de la tierra; Evaluación física de la tierra; Doctorado; Forestal; Land use planning; Land use; Future scenarios; Land use change; Physical land assessment.
Ano: 2008
URL: http://hdl.handle.net/10521/1583

Perpetual private land conservation: the case for outdoor recreation and functional leisure
Provedor de dados: 7
Autores: Farmer, James R.; Department of Recreation, Park, and Tourism Studies, Indiana University; School of Public Health, Indiana University; Ostrom Workshop, Indiana University ; jafarmer@indiana.edu; Brenner, Jacob C.; Ithaca College; jbrenner@ithaca.edu; Drescher, Michael; School of Planning, University of Waterloo; Ostrom Workshop, Indiana University; mdresche@uwaterloo.ca; Dickinson, Stephanie L; Department of Epidemiology &amp; Biostatistics, Indiana University; School of Public Health, Indiana University; sd3@indiana.edu; Knackmuhs, Eric G.; Department of Recreation, Park, and Tourism Studies, Indiana University; School of Public Health, Indiana University; Ostrom Workshop, Indiana University; eknackmu@indiana.edu.
As natural areas, agricultural lands, and open spaces continue to be developed at unprecedented rates, it is important for land conservation professionals to understand the individuals who might play a role in permanently protecting these lands and their ecological services. Many factors have been shown to influence land protection decisions among private owners, including land-use activities, demographic characteristics, and environmental intention and behavior.   With the hypothesis that individuals already involved in land conservation programs would be candidates for permanent protection, we set out to model conservation easement decisions within a group of participants in southern Indiana&amp;#8217;s Classified Forest and Wildlands Program (ICFWP)....
Tipo: Peer-Reviewed Reports
Palavras-chave: Conservation easements; Functional leisure; Indiana Classified Forest and Wildlands; Land trusts; Land use; Private land conservation.
Ano: 2016

Applying a synthetic approach to the resilience of Finnish reindeer herding as a changing livelihood
Provedor de dados: 7
Autores: Sarkki, Simo; Cultural Anthropology, University of Oulu, Finland; simo.sarkki@oulu.fi; Komu, Teresa; Cultural Anthropology, University of Oulu, Finland; Teresa.komu@oulu.fi; Heikkinen, Hannu I; Cultural Anthropology, University of Oulu, Finland; hannu.i.heikkinen@oulu.fi; Herva, Vesa-Pekka; Archaeology, University of Oulu, Finland; vesa-pekka.herva@oulu.fi.
Reindeer herding is an emblematic livelihood for Northern Finland, culturally important for local people and valuable in tourism marketing. We examine the livelihood resilience of Finnish reindeer herding by narrowing the focus of general resilience on social-ecological systems (SESs) to a specific livelihood while also acknowledging wider contexts in which reindeer herding is embedded. The questions for specified resilience can be combined with the applied DPSIR approach (Drivers; Pressures: resilience to what; State: resilience of what; Impacts: resilience for whom; Responses: resilience by whom and how). This paper is based on a synthesis of the authors&amp;#8217; extensive anthropological fieldwork on reindeer herding and other land uses in Northern...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Adaptation; Cumulative pressures; DPSIR approach; Environmental governance; Land use; Livelihood resilience; Pastoralism.
Ano: 2016

Locust Control in Transition: The Loss and Reinvention of Collective Action in Post-Soviet Kazakhstan
Provedor de dados: 7
Autores: Toleubayev, Kazbek; Wageningen University, The Netherlands; Kazbek.Toleubayev@wur.nl; Jansen, Kees; Wageningen University, The Netherlands; Kees.Jansen@wur.nl; van Huis, Arnold; Wageningen University, The Netherlands; Arnold.vanHuis@wur.nl.
The inability to organize collective action for pest control can lead to severe problems. This paper focuses on the locust management system in Kazakhstan since the formation of the Soviet State. During the Transition Period after the collapse of the Soviet Union, the Plant Protection Service disintegrated. The principles of central planning were replaced with individualistic approaches with little state involvement in pest control activities or pesticide regulation. The financial and ideological reasons for dismantling the existing pest control system did not recognize the potential impact that policy-induced changes in agro-ecological conditions and control practices would have on pest development. Nature hit back at the induced institutional change that...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Collective action; Institutional change; Kazakhstan; Knowledge; Land use; Locust; Plant protection; Public good; Soviet Union; Transition period.
Ano: 2007

The Implications of Global Priorities for Biodiversity and Ecosystem Services Associated with Protected Areas
Provedor de dados: 7
Autores: Pyke, Christopher R.; National Center for Environmental Assessment, Office of Research and Development, U.S. Environmental Protection Agency; cpyke@ctgenergetics.com.
Map-based prioritization systems have become ubiquitous tools for allocating resources for biological conservation. Although the scientific basis for these systems continues to be debated, they have become a significant factor in international conservation. A recent study found that published conservation priorities are associated with over one third of conservation spending by major international nongovernmental organizations totaling over $1.5 X 109 in 2002 alone. The growing influence of these systems on the allocation of resources for conservation underscores the need to understand their ecological and environmental implications. This paper addresses the role of global priorities in contributing to the future of land protection by considering three key...
Tipo: Peer-Reviewed Insight
Palavras-chave: Hotspots; Land use; Priority areas; Protected areas; Systematic conservation planning  reserve design.
Ano: 2007

Modeling Land-Use Decision Behavior with Bayesian Belief Networks
Provedor de dados: 7
Autores: Aalders, Inge; Macaulay Institute; j.morrice@macaulay.ac.uk.
The ability to incorporate and manage the different drivers of land-use change in a modeling process is one of the key challenges because they are complex and are both quantitative and qualitative in nature. This paper uses Bayesian belief networks (BBN) to incorporate characteristics of land managers in the modeling process and to enhance our understanding of land-use change based on the limited and disparate sources of information. One of the two models based on spatial data represented land managers in the form of a quantitative variable, the area of individual holdings, whereas the other model included qualitative data from a survey of land managers.    Random samples from the spatial data provided evidence of the relationship between the different...
Tipo: Peer-Reviewed Reports
Palavras-chave: Bayesian belief networks; Land cover; Land use.
Ano: 2008

The relationship between ecological restoration and the ecosystem services concept
Provedor de dados: 7
Autores: Alexander, Sasha; University of Western Australia; sashaalexander108@gmail.com; Aronson, James; Restoration Ecology Group, Centre d'Ecologie Fonctionnelle et Evolutive (CNRS-UMR 5175); Center for Conservation and Sustainable Development, Missouri Botanical Garden; ja42014@gmail.com; Whaley, Oliver; Royal Botanic Gardens, Kew; o.whaley@kew.org; Lamb, David; School of Agriculture and Food Science, The University of Queensland; david.lamb@uq.edu.au.
Ecological restoration and the mainstreaming of the concept of ecosystem services will be critical if global society is to move toward sustainability. Conference of the Parties 21 (COP21) of the United Nations Framework Convention on Climate Change and COP12 of the Convention on Biological Diversity should help foster support for vastly increased investment in the better management and restoration of natural capital. Large-scale restoration demonstrably improves ecological functioning to sustain both biodiversity and human well-being. However, much progress is needed to improve the effectiveness and cost efficiency of any restoration. The ecosystem services concept provides a framework for identifying the types of restorative interventions needed to target...
Tipo: Peer-Reviewed article
Palavras-chave: Climate change; Ecosystem services; Land degradation; Land use; Large-scale ecological restoration; Restoring natural capital  rural communities  sustainable development.
Ano: 2016

Nitrogen Source Apportionment for the Catchment, Estuary, and Adjacent Coastal Waters of the River Scheldt
Provedor de dados: 7
Autores: Vermaat, Jan E; Earth Sciences and Economics, Faculty of Earth and Life Sciences, VU University; j.e.vermaat@vu.nl; Broekx, Steven; Flemish Institute for Technological Research (VITO); steven.broekx@vito.be; Van Eck, Bert; Deltares; Bert.vanEck@deltares.nl; Engelen, Guy; Flemish Institute for Technological Research (VITO); guy.engelen@vito.be; Hellmann, Fritz; Institute for Environmental Studies (IVM), VU University; f.a.hellmann@vu.nl; De Kok, Jean Luc; Flemish Institute for Technological Research (VITO); Jean-Luc.DeKok@vito.be; Van der Kwast, Hans; Flemish Institute for Technological Research (VITO); hans.vanderkwast@vito.be; Maes, Joachim; Joint Research Centre-European Commission; joachim.maes@jrc.ec.europa.eu; Salomons, Wim; Institute for Environmental Studies (IVM), VU University; wim.salomons@home.nl; Van Deursen, Willem; PCRaster; willem@pcraster.nl.
Using the systems approach framework (SAF), a coupled model suite was developed for simulating land-use decision making in response to nutrient abatement costs and water and nutrient fluxes in the hydrological network of the Scheldt River, and nutrient fluxes in the estuary and adjacent coastal sea. The purpose was to assess the efficiency of different long-term water quality improvement measures in current and future climate and societal settings, targeting nitrogen (N) load reduction. The spatial-dynamic model suite consists of two dynamically linked modules:  PCRaster is used for the drainage network and is combined with ExtendSim modules for farming decision making and estuarine N dispersal. Model predictions of annual mean flow and total N...
Tipo: Peer-Reviewed Reports
Palavras-chave: Catchment hydrology; Coupled modeling; Estuary; Eutrophication; Land use; Systems analysis; Watershed nutrient loading.
Ano: 2012

Responses of Emergent Marsh Wetlands in Upstate New York to Variations in Urban Typology
Provedor de dados: 7
Autores: Kleppel, G. S.; Department of Biological Sciences, University at Albany, SUNY; gkleppel@csc.albany.edu; Madewell, Shirley A; Department of Biological Sciences, University at Albany, SUNY; madewell@mail.com; Hazzard, Sarah E; Department of Biological Sciences, University at Albany, SUNY; hazzads@ecostudies.org.
Although it has been repeatedly demonstrated that urbanization has negative environmental consequences, the conversion of land to urban use is increasing worldwide and is not likely to abate. We tested the hypothesis that different urban typologies, i.e., distributions of human population and infrastructure, differentially influence the water quality and ecological functionality of emergent marsh wetlands in New York State's Hudson River Valley. Wetlands were studied in two watersheds, defined as landscapes bounded by ridge lines, containing traditional small-town development and two watersheds containing suburban typologies. Land cover attributes were evaluated by analyzing ground-truthed, orthophotoquad data with a GIS. Water quality, the cover and...
Tipo: Peer-Reviewed Reports
Palavras-chave: Hudson River Valley; New York State; Buffers; Land use; Small towns; Suburbs; Trophic transfer efficiency; Urban typology; Urbanization; Water quality; Watershed; Wetlands.
Ano: 2004

Global Impacts of European Agricultural and Biofuel Policies
Provedor de dados: 7
Autores: Prins, Anne Gerdien; Netherlands Environmental Assessment Agency (PBL); Annegerdien.Prins@pbl.nl; Eickhout, Bas; Netherlands Environmental Assessment Agency (PBL); European Parliament; Bas.Eickhout@pbl.nl; van Meijl, Hans; Agricultural Economics Institute (LEI); Hans.vanMeijl@wur.nl; Rienks, Willem; Rom3D, formerly Alterra, Research Institute for the Green Space, Wageningen University and Research Centre; Willem.Rienks@wur.nl; Woltjer, Geert; Agricultural Economics Institute (LEI); Geert.Woltjer@wur.nl.
Food supply and food distribution have been and are important issues in the global political arena. The recent emergence of biofuel policies has increased the influence of the policy arena on agricultural production. In this paper we show the regional impact of changes in the European Common Agricultural Policy and biofuel policy. Shifting trade patterns, changes in agricultural production, and expansion of agricultural area or intensification of agriculture result in changes in land use and land use emissions. Higher prices for agricultural crops on the world market together with changing production raise agricultural income. Brazil is the region the most affected. The results show that arrangements or policies will be needed to avoid negative impacts in...
Tipo: Peer-Reviewed Reports
Palavras-chave: Agricultural income; Biodiversity; Biofuels; CAP reform; Land use.
Ano: 2011

Linking Land Change with Driving Forces and Actors: Four Conceptual Models
Provedor de dados: 7
Autores: Hersperger, Anna M.; Land Use Dynamics Unit, Swiss Federal Research Institute WSL; anna.hersperger@wsl.ch; Gennaio, Maria-Pia; Swiss Federal Research Institute Agroscope ART; maria.gennaio@art.admin.ch; Verburg, Peter H.; Institute for Environmental Studies, VU University Amsterdam ; peter.verburg@ivm.vu.nl.
Tipo: Peer-Reviewed Reports
Palavras-chave: Conceptualization; Guidelines; Land change modeling; Land cover change; Land use; Model selection; Organizational heuristic.
Ano: 2010

Landscape Change in the Southern Piedmont: Challenges, Solutions, and Uncertainty Across Scales
Provedor de dados: 7
Autores: Conroy, Michael J; USGS Cooperative Fish and Wildlife Research Unit; conroy@forestry.uga.edu; Allen, Craig; University of Nebraska; allencr@unl.edu; Peterson, James T; USGS Cooperative Fish and Wildlife Research Unit;; Pritchard, Lowell, Jr.; Emory University; lpritc2@emory.edu; Moore, Clinton T; ;.
The southern Piedmont of the southeastern United States epitomizes the complex and seemingly intractable problems and hard decisions that result from uncontrolled urban and suburban sprawl. Here we consider three recurrent themes in complicated problems involving complex systems: (1) scale dependencies and cross-scale, often nonlinear relationships;     (2) resilience, in particular the potential for complex systems to move to alternate stable states with decreased ecological and/or economic value; and (3) uncertainty in the ability to understand and predict outcomes, perhaps particularly those that occur as a result of human impacts. We consider these issues in the context of landscape-level decision making, using as an example water resources and lotic...
Tipo: Peer-Reviewed Reports
Palavras-chave: Piedmont; Adaptive management; Land use; Model; Resilience; Scale; Sprawl; Uncertainty; Urbanization; Water resources.
Ano: 2003

Optimizing nitrogen rates in the midwestern United States for maximum ecosystem value
Provedor de dados: 7
Autores: Ewing, Patrick M; University of Minnesota, Department of Agronomy and Plant Genetics ; ewing069@umn.edu; Runck, Bryan C; University of Minnesota, Department of Geography, Environment and Society; runck014@umn.edu.
The importance of corn production to the midwestern United States cannot be overestimated. However, high production requires high nitrogen  fertilization, which carries costs to environmental services such as water quality. Therefore, a trade-off exists between the production of corn yield and water quality. We used the Groundwater Vulnerability Assessment for Shallow depths and Crop Environment Resource Synthesis-Maize models to investigate the nature of this trade-off while testing the Simple Analytic Framework trade-offs featured in this Special Feature. First, we estimated the current levels of yield and water quality production in northeastern Iowa and southern Minnesota at the 1-square-kilometer, county, and regional scales. We then constructed an...
Tipo: Peer-Reviewed Reports
Palavras-chave: Agriculture; Agroecology; Corn belt; DSSAT; Fertilization rate; Frontier analysis; Groundwater nitrate; GWAVA-S; Land use; Nitrogen; Rotation; Row crops; Simple Analytics Framework; Yield.
Ano: 2015

Beyond Forest Cover: Land Use and Biodiversity in Rubber Trail Forests of the Chico Mendes Extractive Reserve
Provedor de dados: 7
Autores: Vadjunec, Jacqueline M.; Department of Geography, Oklahoma State University; jacqueline.vadjunec@okstate.edu; Rocheleau, Dianne; Graduate School of Geography, Clark University; drocheleau@clarku.edu.
Among the strategies to promote sustainable tropical forest development around the world, the Federal Extractive Reserve System of Brazil is widely cited as an exemplary model. It is designed to protect rubber tapper communities, their forests, and their livelihoods while preventing deforestation and conserving biodiversity. In response to changing markets and policies, rubber tappers in the Chico Mendes Extractive Reserve have recently diversified production to include market agriculture and cattle production, precipitating deforestation in the reserve, with the implication of increased ecological degradation compared to the extraction of nontimber forest products (NTFPs). Our remote sensing and forest inventory analyses yield different insights about the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Biodiversity; Ecological monitoring; Extractive reserves; Land use; Livelihood; Tropical deforestation.
Ano: 2009

Modeling the Effects of Land Use on the Quality of Water, Air, Noise, and Habitat for a Five-County Region in Georgia
Provedor de dados: 7
Autores: Dale, Virginia H; ; dalevh@ornl.gov; Akhtar, Farhan; Georgia Institute of Technology;; Aldridge, Matthrew; University of Tennessee;; Baskaran, Latha; Oak Ridge National Laboratory;; Berry, Michael; University of Tennessee;; Browne, Murray; University of Tennessee;; Chang, Michael; Georgia Institute of Technology;; Efroymson, Rebecca; Oak Ridge National Laboratory;; Garten, Jr., Charles; Oak Ridge National Laboratory;; Lingerfelt, Eric; University of Tennessee;; Stewart, Catherine; Aberdeen Proving Ground;.
A computer simulation model, the Regional Simulator (RSim), was constructed to project how land-use changes affect the quality of water, air, noise, and habitat of species of special concern. RSim was designed to simulate these environmental impacts for five counties in Georgia that surround and include Fort Benning. The model combines existing data and modeling approaches to simulate the effects of land-cover changes on: nutrient export by hydrological unit; peak 8-h average ozone concentrations; noise caused by small arms and blasts; and habitat changes for the rare Red-cockaded Woodpecker (Picoides borealis) and gopher tortoise (Gopherus polyphemus). The model also includes submodules for urban growth, new urbanization influenced by existing roads,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Gopher tortoise; Land use; Landscape change; Longleaf pine; Nutrient export; Red-cockaded Woodpecker; Simulation.
Ano: 2008

Open Source and Open Content: a Framework for Global Collaboration in Social-Ecological Research
Provedor de dados: 7
Autores: Schweik, Charles; University of Massachusetts, Amherst; cschweik@pubpol.umass.edu; Evans, Tom; Indiana University; evans@indiana.edu; Grove, J. Morgan; U.S. Forest Service, Northeastern Research Station; mgrove@fs.fed.us.
This paper discusses opportunities for alternative collaborative approaches for social-ecological research in general and, in this context, for modeling land-use/land-cover change.  In this field, the rate of progress in academic research is steady but perhaps not as rapid or efficient as might be possible with alternative organizational frameworks.  The convergence of four phenomena provides new opportunities for cross-organizational collaboration: (1) collaborative principles related to "open source" (OS) software development, (2) the emerging area of "open content" (OC) licensing, (3) the World Wide Web as a platform for scientific communication, and (4) the traditional concept of peer review. Although private individuals, government organizations, and...
Tipo: Peer-Reviewed Reports
Palavras-chave: Land use; Land cover; Modeling; Open content; Free/libre software; Open source software.
Ano: 2005

The effect of reciprocal connections between demographic decision making and land use on decadal dynamics of population and land-use change
Provedor de dados: 7
Autores: Zvoleff, Alexander; San Diego State University, Department of Geography; azvoleff@conservation.org; An, Li; San Diego State University, Department of Geography; lan@mail.sdsu.edu.
Tipo: Peer-Reviewed Reports
Palavras-chave: Coupled human-natural system; Environment; Feedback; Fertility; Land use; Marriage; Population.
Ano: 2014

Increased Market Integration, Value, and Ecological Knowledge of Tea Agroforests in the Akha Highlands of Southwest China
Provedor de dados: 7
Autores: Ahmed, Selena; New York Botanical Garden; selenaahmed@aol.com; Stepp, John R; University of Florida; stepp@ufl.edu; Toleno, Robban A. J.; University of British Columbia; robban@interchange.ubc.ca; Peters, Charles M; New York Botanical Garden; cpeters@nybg.org.
This study assesses the persistence and change of traditional land use patterns and ecological knowledge in response to expanded commercialization of tea (Camellia sinensis var. assamica (L.) Kuntze Theaceae in an indigenous Akha (Hani) community in the midlevel montane forests of southwest Yunnan, China. Surveys were conducted in 2005 and 2008, over a period corresponding to a regional tea market boom and bust cycle, to compare the valuation smallholders attribute to land use types and to determine the role that value systems play in shaping environmental behavior and knowledge. At the community level, increased market integration of tea agroforests is associated with reconfiguration of land use, intensified management, reorganization of labor structures,...
Tipo: Peer-Reviewed Reports
Palavras-chave: Ecological knowledge; Land use; Natural resource commercialization; Social networks; Tea (Camellia sinensis).
Ano: 2010

An Overview of the Implications of Global Change for Natural and Managed Terrestrial Ecosystems
Provedor de dados: 7
Autores: Walker, Brian; CSIRO Sustainable Ecosystems; Brian.Walker@csiro.au; Steffen, Will; ; Will.Steffen@dwe.csiro.au.
Global change is the net effect of individual and interactive effects of changes in land use, atmospheric composition, biological diversity, and climate.  A synthesis of the past six years' activities of the Global Change and Terrestrial Ecosystems project of the IGBP (International Geosphere-Biosphere Programme) deals with global change effects as ecosystem responses and living with global change. Ecosystem responses are considered in terms of changes in function and vegetation composition/structure. Field experiments of elevated CO2 effects on aboveground biomass show, on average, a positive effect on biomass, ranging from -20% to +80%. Some early predictions of CO2 effects (C3 vs. C4 plants, N-fixers, C:N in litter) are not generally supported, and it...
Tipo: Peer-Reviewed Reports
Palavras-chave: Agriculture; Biomes; Carbon dioxide; Climate; Dynamics; Ecosystem functioning; Global change; Impacts; Land use; Terrestrial biosphere; Vegetation changes.
Ano: 1997

Food-Carbon Trade-offs between Agriculture and Reforestation Land Uses under Alternate Market-based Policies
Provedor de dados: 7
Autores: Paterson, Stacey; CSIRO Ecosystem Sciences; University of Adelaide; stacey.paterson@student.adelaide.edu.au; Bryan, Brett Anthony; CSIRO Ecosystem Sciences; brett.bryan@csiro.au.
Understanding the effects of payments on the adoption of reforestation in agricultural areas and the associated food-carbon trade-offs is necessary to inform climate change policy. Economic viability of reforestation under payment per hectare and payment per tonne schemes for carbon sequestration was assessed in a region in southern Australia supporting 6.1 Mha of rain-fed agriculture. The results show that under the median scenario, a carbon price of 27 A$/tCO2-e could make one-third of the study area (nearly 2 Mha) more profitable for reforestation than agriculture, and at 58 A$/tCO2-e all of the study area could become more profitable. The results were sensitive to variation in carbon risk factor, establishment costs, and discount rates. Pareto-optimal...
Tipo: Peer-Reviewed Reports
Palavras-chave: Agriculture; Agroecosystem; Carbon sequestration; Ecosystem services; Food security; Land use; Payment; Policy; Reforestation.
Ano: 2012

Resilience Lost: Intersecting Land Use and Landscape Dynamics in the Prehistoric Southwestern United States
Provedor de dados: 7
Autores: Peeples, Matthew A.; School of Human Evolution &amp; Social Change, Arizona State University; Matthew.Peeples@asu.edu; Barton, C. Michael; School of Human Evolution &amp; Social Change, Arizona State University; Center for Social Dynamics and Complexity, Arizona State University; Michael.Barton@asu.edu; Schmich, Steven; School of Human Evolution &amp; Social Change, Arizona State University; Steven.Schmich@asu.edu.
The interdisciplinary framework known as resilience theory used by ecologists, social scientists, as well as policy makers, is primarily concerned with the sources of transformation and stability in complex socioecological systems. The laboratory of the long and diverse archaeological record is uniquely suited to testing some of the implications of this theoretical perspective. In this paper, we consider the history of land use and landscape change across the transition from foraging to agricultural subsistence economies in the Middle Chevelon Creek region of northern Arizona. Through this discussion, we highlight the potential roles of diversity and flexibility at multiple spatial and temporal scales in the resilience of human land use practices from the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Adaptive cycle; Agriculture; Archaeology; Human environmental impacts; Land use; Landscape dynamics; Resilience theory; Southwestern United States.
Ano: 2006

Land-Use and Land Cover Dynamics in South American Temperate Grasslands
Provedor de dados: 7
In the R&amp;#237;o de la Plata grasslands (RPG) biogeographical region of South America, agricultural activities have undergone important changes during the last 15&amp;#8211;18 years because of technological improvements and new national and international market conditions. We characterized changes in the landscape structure between 1985&amp;#8211;1989 and 2002&amp;#8211;2004 for eight pilot areas distributed across the main regional environmental gradients. These areas incorporated approximately 35% of the 7.5 &amp;#215; 105 km&amp;#178 of the system. Our approach involved the generation of land-use and land cover maps, the analysis of landscape metrics, and the computation of annual transition probabilities between land cover types. All of the...
Tipo: Peer-Reviewed Reports
Palavras-chave: Campos; Fragmentation; Grasslands; Land use; Landscape dynamics  pampas; Remote sensing; Spatial metrics.
Ano: 2008

Assessing ecosystem services for informing land-use decisions: a problem-oriented approach
Provedor de dados: 7
Autores: Fricke, Roman; Faculty of Biology, Department of Animal Ecology, Philipps University of Marburg, Marburg, Germany; fricker@staff.uni-marburg.de; Kleyer, Michael; Landscape Ecology Group, Institute of Biology and Environmental Sciences, University of Oldenburg, Oldenburg, Germany; michael.kleyer@uni-oldenburg.de; Kobbe, Susanne; Department of Animal Ecology and Conservation, University of Hamburg, Biocentre Grindel, Hamburg, Germany; Susanne.Kobbe@uni-hamburg.de; Seppelt, Ralf; UFZ - Helmholtz Centre for Environmental Research, Department Computational Landscape Ecology, Leipzig, Germany;  Institute of Geoscience &amp; Geography, Martin-Luther-University Halle-Wittenberg, Halle (Saale), Germany; ralf.seppelt@ufz.de; Settele, Josef; UFZ - Helmholtz Centre for Environmental Research, Department of Community Ecology, Animal Ecology and Social-Ecological Research,  Halle, Germany; iDiv - German Centre for Integrative Biodiversity Research, 04103 Leipzig, Germany; josef.settele@ufz.de; Spangenberg, Joachim H.; UFZ - Helmholtz Centre for Environmental Research, Department of Community Ecology, Animal Ecology and Social-Ecological Research,  Halle, Germany; Sustainable Europe Research Institute SERI Germany, Cologne, Germany; Joachim.Spangenberg@ufz.de; Tekken, Vera; Institute for Geography and Geology, Department of Sustainability Science and Applied Geography, Ernst Moritz Arndt University of Greifswald, Greifswald, Germany; vera.tekken@posteo.de; Wittmer, Heidi; UFZ - Helmholtz Centre for Environmental Research, Department Environmental Politics, Leipzig, Germany; heidi.wittmer@ufz.de.
Assessments of ecosystem services (ES), that aim at informing decisions on land management, are increasing in number around the globe. Despite selected success stories, evidence for ES information being used in decision making is weak, partly because ES assessments are found to fall short in targeting information needs by decision makers. To improve their applicability in practice, we compared existing concepts of ES assessments with focus on informing land use decisions and identified opportunities for enhancing the relevance of ES assessments for decision making. In a process of codesign, building on experience of four projects in Brazil, China, Madagascar, and Vietnam, we developed a step-wise approach for better targeting ES assessments toward...
Tipo: Peer-Reviewed article
Palavras-chave: Decision support; Ecosystem services assessment; Land use; Problem-oriented.
Ano: 2015

Landscape Scenarios and Multifunctionality: Making Land Use Impact Assessment Operational
Provedor de dados: 7
Autores: Helming, Katharina; Leibniz-Centre for Agricultural Landscape Research (ZALF); khelming@zalf.de.
Ex ante impact assessment can help in structuring the analysis of human-environment interactions thereby supporting land use decision making for sustainable development. The contributions to this special feature focus on some of the challenges of making land use impact assessment operational for policy making. A total of nine papers deal with the needs and uses of assessment tools for policy making at the European level, with the value-based influence in scenario development, and with ex ante impact assessment studies in different contexts, spatial systems, and for different purposes and user groups. The concept of landscape multifunctionality was implicitly or explicitly employed as an integrating entity between socioeconomic and biogeophysical features...
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Impact assessment; Landscape; Land use; Multifunctionality; Science-policy interface.
Ano: 2011

Using Backcast Land-Use Change and Groundwater Travel-Time Models to Generate Land-Use Legacy Maps for Watershed Management
Provedor de dados: 7
Autores: Pijanowski, Bryan; Purdue University; bpijanow@purdue.edu; Ray, Deepak K; Purdue University; dkray@purdue.edu; Kendall, Anthony D; Michigan State University; kendal30@msu.edu; Duckles, Jonah M; Purdue University; jduckles@purdue.edu; Hyndman, David W; Michigan State University; hyndman@msu.edu.
We couple two spatial-temporal models, a backcast land-use change model and a groundwater flow model, to develop what we call &amp;#8220;land-use legacy maps.&amp;#8221; We quantify how a land-use legacy map, created from maps of past land use and groundwater travel times, differs from a current land-use map. We show how these map differences can affect land-use planning and watershed management decisions at a variety of spatial and temporal scales. Our approach demonstrates that land-use legacy maps provide a more accurate representation of the linkage between land use/cover and current water quality compared to the current land-use map. We believe that the historical signatures of land-use impacts on current water quality should be considered in land-use...
Tipo: Peer-Reviewed Reports
Palavras-chave: Land use; Legacy maps; Groundwater travel times; Backcast land change model.
Ano: 2007

From LTER to LTSER: Conceptualizing the Socioeconomic Dimension of Long-term Socioecological Research
Provedor de dados: 7
Autores: Haberl, Helmut; Institute of Social Ecology, IFF Vienna, Klagenfurt University; Helmut.Haberl@uni-klu.ac.at; Winiwarter, Verena; Dept. of Cultural Analysis, IFF Vienna, Klagenfurt University; verena.winiwarter@univie.ac.at; Andersson, Krister; University of Colorado, Boulder, Colorado; kanderss@indiana.edu; Ayres, Robert U.; INSEAD, Fountainebleau and IIASA, Laxenburg; Robert.AYRES@insead.edu; Boone, Christopher; School of Human Evolution and Social Change, Global Institute of Sustainability,; Christopher.G.Boone@asu.edu; Castillo, Alicia; Centro de Investigaciones en Ecosistemas, Universidad Nacional Autonoma de Mexic; castillo@oikos.unam.mx; Cunfer, Geoff; Department of History, University of Saskatchewan; geoff.cunfer@usask.ca; Fischer-Kowalski, Marina; Institute of Social Ecology, IFF Vienna, Klagenfurt University; marina.fischer-kowalski@uni-klu.ac.at; Freudenburg, William R.; Environmental Studies Programme, University of California, Santa Barbara; freudenburg@es.ucsb.edu; Furman, Eeva; Finnish Environment Institute, SYKE; Eeva.Furman@ymparisto.fi; Krausmann, Fridolin; Institute of Social Ecology, IFF Vienna, Austria; fridolin.krausmann@uni-klu.ac.at; Mirtl, Michael; Federal Environment Agency Austria; michael.mirtl@umweltbundesamt.at; Redman, Charles L.; International Institute for Sustainability, Arizona State University; charles.redman@asu.edu; Reenberg, Anette; Institute of Geography, University of Copenhagen; Ar@geogr.ku.dk; Wardell, Andrew; Institute of Geography, University of Copenhagen; benjamin.warr@free.fr; Warr, Benjamin; INSEAD, Fountainebleau; benjamin.warr@free.fr; Zechmeister, Harald; Vienna Ecology Centre, Faculty of Life Sciences, University of Vienna; harald.zechmeister@univie.ac.at.
Tipo: Peer-Reviewed Synthesis
Palavras-chave: Communication; Governance; Land use; Long-term ecological research (LTER); Long-term socioecological research (LTSER); Scale; Society-nature interaction; Socioecological metabolism; Socioecological systems.
Ano: 2006

Monitoring Current Status of and Trends in Boreal Forest Land Use in Russian Karelia
Provedor de dados: 7
Autores: Burnett, Charles; University of Salzburg; charles.burnett@sbg.ac.at; Fall, Andrew; Simon Fraser University; fall@cs.sfu.ca; Tomppo, Erkki; Finnish Forest Research Institute; Erkki.Tomppo@metla.fi; Kalliola, Risto; University of Turku; risto.kalliola@utu.fi.
Some of the last remaining near-natural boreal forest landscapes in northern Europe can be found in the Russian Karelia near its border with Finland. Currently, these forests are facing strong exploitation pressure in the form of extensive clearcuts. Demand for conservation is also high. We characterize the boreal forest landscape in the region and assess the impacts of past and potential management actions through a mapping and modeling study that synthesizes methods from landscape ecology, remote sensing, and simulation modeling. The forests of the study area were mapped using techniques for interpreting multitemporal satellite images and detecting changes. The species composition and structure of the forests were estimated using the multisource...
Tipo: Peer-Reviewed Reports
Palavras-chave: Karelia; Russia; Finland; Boreal forest; Conservation policy; Dynamic modeling; Fragmentation; Land use; GIS.
Ano: 2003

Conservation of ecosystem services in high-altitude Andean wetlands: social participation in the creation of a natural protected area
Provedor de dados: 67
Autores: Rubio,María Clara; Rubio,Cecilia; Salomón,Mario; Abraham,Elena.
The goal of the present work is to synthesize the process of collective construction developed to protect the high-altitude wetlands of the Blanco River basin, located in the Andes Mountains, Province of Mendoza. The participatory process arose out of an initiative of basin residents and users, and was conducted by the Integrative Committee for Creation of Potrerillos Municipal Environmental Protected Area (MEPA), composed of civil society organizations, government agencies and scientific institutions. The major pressures affecting the wetlands, identified through participatory assessment of the socio-ecosystem are: water pollution, reduction and total loss of habitat, stoppage of groundwater flows, artificial drainage, poldering of the meadow, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Community conservation strategy; Assessment; Benefciaries; Mapping; High Andes; Land use; Watershed; Land-use planning.
Ano: 2017
URL: http://www.scielo.org.ar/scielo.php?script=sci_arttext&pid=S1667-782X2017000200008

IMPLICATIONS FOR PEAK FLOWS OF THE MARRECAS RIVER BASIN DUE TO CHANGES IN THE BRAZILIAN FOREST CODE
Provedor de dados: 70
Autores: Aguiar,Wagner de; Sampaio,Silvio C.; Paisani,Julio C.; Reis,Ralpho R. dos.
ABSTRACT Changes in the Brazilian Forest Code (BFC) have soften the criteria for recovery and conservation of permanent preservation areas (PPAs), enhancing processes related to surface runoff. The aim of this study is to understand the effects of changes in PPA classification criteria established by BFC of 2012 to the detriment of BFC from 1965 considering the surface runoff response in the basin draining the upper Marrecas River valley in the flow peaks. The HEC–HMS model was used to simulate flow peaks considering three land-use scenarios, representative of the current use, adapting it to PPAs fitted to the BFC of 1965 and 2012 and seven precipitation return periods. In the proposed scenarios, the use of BFC of 2012, to the detriment of that from 1965,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Surface runoff; Forestry legislation; Hydrological simulation; Land use.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162018000200277

ECOLOGICAL-ECONOMIC ZONING OF THE CITY OF ALTINÓPOLIS – SP, BRAZIL
Provedor de dados: 70
Autores: Crivelenti,Rafael C.; Bueno,Célia R. P.; Pires,José S. R.; Francisco,José; Lessi,Bruno F.
ABSTRACT: Since colonial times, Brazilian land use has been made under an extractivist model at the expense of deforestation, increasing soil and vegetation depletion, stream siltation, as well as loss of biodiversity. An ecological-economic zoning (EEZ) has been taken as feasible alternative to guide public policies aimed at city land-use planning. This study focused on designing an EZZ for the city of Altinópolis, in São Paulo state (Brazil), by means of geographical information systems (GIS). Information and maps delineated six land-use areas, in which 30% covered areas under environmental protection, 45% over areas with groundwater recharge potential, which should be intended to restoration. Furthermore, around 70% of the territory show potential to be...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Geographical information systems; Soil and water preservation; Environmental planning; Land use.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162016000601218

THE ALPINE LIFE ZONE UNDER GLOBAL CHANGE
Provedor de dados: 73
Autores: Körner,Christian.
Nearly forty percent of mankind depend in one way or another on mountain ecosystems. Local ecosystem services are slope stability, water yield, agricultural products or recreational value. Continental scale influences include drinking water supply, ground water recharging, irrigation water, hydroelectric power, flood control, traffic routes etc. In this paper I review evidence of alpine ecosystem responses to global change. It is emphasized that soil conservation is the centerpiece of any consideration of sustainable land use in alpine terrain. Complete vegetation cover of high biological diversity is essential to protect soils and secure `ecosystem services' in upland systems. It is illustrated that this is not necessarily in conflict with land use and...
Tipo: Journal article
Palavras-chave: Altitude; Biodiversity; Climate; Conservation; Grazing; High elevation; Land use; Mountain.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0717-66432000000100001

Aptidão agrícola das terras da margem direita do Córrego Divisa, Bacia do São Bartolomeu-DF, escala 1:10.000.
Provedor de dados: 14
Autores: REATTO, A.; MARTINS, E. de S.; FARIAS, M. F. R.; SILVA, A. V. da; BLOISE, G. L. F.; CARDOSO, E. A.
Resumo: Este estudo teve a finalidade de caracterizar a aptidao agricola da margem direita do Corrego Divisa na Bacia do Rio Sao Bartolomeu, em escal de 1:10.000, para subsidiar estudos em caracterizacao ambiental. As principais classes de solos que ocorrem na margem direita do Corrego Divisa, na Bacia do Rio Sao Bartolomeu-DF sao: latossolos, cambissolos e neossolos litolicos. Os latossolos sao distroficos ou acricos, argilosos, muito argilosos, ou de textura media, e acentuadamente drenados. Os cambissolos sao rasos a muito rasos, concrecionarios, de textura media cascalhenta lateritica, sao distroficos ou alicos. Os neossolos litolicos sao muito raros, argilosos, alicos e bem drenados. Com relacao a aptidao agricola, os latossolos dessa regiao...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: ECOSOL110; Mapeamento; Zoneamento; Bacia do Sao Bartolomeu; Distrito Federal; Brasil; Caracterizacao ambiental; Mapping.; Aptidão Agrícola; Cerrado; Solo; Uso da Terra.; Brazil; Land use; Soil; Soil surveys; Zoning.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/567941

Atividade madeireira como uma alternativa viável para a utilização sustentada dos recursos florestais na Amazônia brasileira.
Provedor de dados: 14
Autores: SILVA, J. N. M.; UHL, C.
Tipo: Parte de livro
Palavras-chave: Floresta sustentável; Exploração madeireira; Manejo florestal; Brasil; Sustainability; Forestry production; Produção Florestal; Silvicultura; Uso da Terra; Amazonia; Forest management; Land use; Logging; Silviculture.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/394890

Características físico-químicas do solo em diferentes agroecossistemas na região bragantina do Nordeste paraense.
Provedor de dados: 14
Autores: BAENA, A. R. C.; FALESI, I. C.; DUTRA, S.
bitstream/item/48885/1/Boletim-Pesquisa-185-CPATU.pdf
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Sistema de rocado; Região Bragantina; Pará; Brasil; Chemicophysical properties; Rural settlement.; Colonização; Cultivo Migratório; Propriedade Físico-Química; Uso da Terra; Solo.; Amazonia; Land use; Shifting cultivation; Soil.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376273

Teor de carbono orgânico do solo e aspectos biofísicos da cobertura vegetal da Bacia do Córrego Sarandi, Planaltina, DF.
Provedor de dados: 14
Autores: SANTOS, F.; RAMALHO, L. de S.; MARQUES, T. de A.; SENA-SOUZA, J. P.; BRAGA, A. R. dos S.; MARTINS, E. de S.; COUTO JÚNIOR, A. F.; NARDOTO, G. B.
bitstream/item/128193/1/bolpd-319.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Índice de vegetação; Matéria orgânica do solo; Vegetal cover; Savanna; Soil carbon stocks.; Cerrado; Uso da Terra.; Land use; Soil organic matter.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1021580

Caracterização geomorfológica do Município de Jaborandi, Oeste Baiano, Escala 1: 100.00.
Provedor de dados: 14
Autores: CASTRO, K. B; MARTINS, E. de S.; GOMES, M. P.; BRAGA, A. R. dos S.; PASSO, D. P.; LIMA, L. A. de S.; CARVALHO JÚNIOR, O. A.; GOMES, R. A. T.
bitstream/item/75872/1/bolpd-285.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Geoprocessamento; Relief; Landscape; Geoprocessing.; Relevo; Uso da Terra.; Solo; Brazil; Land use; Soil.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/902912

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45 (Manaus-AM).
This project has by objective the quantification of water and nutrient fluxes in an experimental plantation, which is composed of different monoculture and polyculture systems with mainly perennial crops, as well as in primary and secondary forest at EMBRAPA-CPAA (Manaus, AM, Brasil). The flux measurements are expected to provide information about the efficiency with which the different land use systems exploit the available resources (water, nutrients) on the infertile soils of the area and minimize unproductive losses, e.g., through leaching. Efficient resource utilization is seem as a procondition of sustainable land use on this site.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Tropical rain forest; Água; Cultivo Multiplo; Floresta Tropical Úmida; Nutriente; Solo; Uso da Terra; Agroforestry; Land use; Multiple cropping; Nutrients; Soil; Water.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668143

1º Inventário das emissões de gases de efeito estufa do município de Rio Branco, Acre: série 2012-2016.
Provedor de dados: 14
Autores: COSTA, F. de S.; AMARAL, E. F. do; MELO, C. S. de; MARTINS, D. A.
Este inventário apresenta sugestões a partir dos resultados obtidos para mudanças estruturais no município objetivando reduzir as emissões, como, por exemplo, aumentar a robustez e a intercomunicação dos bancos de dados setoriais. A abordagem dada ao inventário permitiu demonstrar a tendência temporal de cada sumidouro/fonte de gases de efeito estufa por setor da matriz de produção do município e, portanto, prever o que assumir como prioridade para redução das emissões e/ou aumento da capacidade do sumidouro.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Inventário de Gases de Efeito Estufa (GEE); Sumidouros de gases; Emissões antrópicas; Vehicles; Cambio climático; Efecto invernadero; Gases de invernadero; Reservorios de carbono; Actividades antropogénicas; Estimación del riesgo; Uso de la tierra; Desechos sólidos; Rio Branco (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Mudança Climática; Efeito Estufa; Carbono; Estoque; Estimativa; Resíduo Solido.; Veiculo; Eliminação de Resíduo; Uso da Terra; Energia Elétrica; Climate change; Greenhouse effect; Greenhouse gases; Carbon sinks; Risk estimate; Anthropogenic activities; Electric power industry; Land use; Solid wastes.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117560

Caracterização do meio físico da Bacia Hidrográfica do Alto Taquari utilizando o sistema de informações geográficas SGI/INPE.
Provedor de dados: 14
Autores: OLIVEIRA, H. de; OLIVEIRA, F. D. A. de; SANO, E. E.; ADÁMOLI, J.
bitstream/item/39642/1/DOC19-98.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Geoprocessamento; Declividade; Brasil; Alto Taquari; Geoprocessing.; Bacia Hidrográfica; Cerrado; Uso da Terra; Solo.; Brazil; Land use; Watersheds.; Soil.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/241396

Interação de fatores biofísicos e do uso da terra da dinâmica da paisagem do município de Ourém, Pará, em sistema de informação geográfica.
Provedor de dados: 14
Autores: SILVA, L. G. T.; SILVA, B. N. R. da; ROCHA, A. M. A. da; SAMPAIO, S. M. N.
bitstream/item/61286/1/CPATU-Doc133.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ecologia agricola; Dinâmica da paisagem; Ourém; Pará; Brasil; Landiscaping; Landscape.; Paisagismo; Reconhecimento do Solo; Uso da Terra.; Agriculture; Amazonia; Ecology; Land use; Soil surveys.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376599

Expansão da silvicultura no Brasil Central: estudo de caso em Rio Verde (GO).
Provedor de dados: 14
Autores: BUSCHINELLI, C. C. de A.; COSTA, B. M. R.
Resumo: O município de Rio Verde, em Goiás, ocupa hoje uma posição de destaque no cenário agropecuário nacional. O uso da terra em sua extensão territorial passou a sofrer mudanças profundas na segunda metade do século XX, principalmente a partir da década de 1970, na esteira da modernização da agricultura brasileira. A sua grande extensão territorial e alta capacidade produtiva agropecuária são alguns dos fatores que motivaram a instalação de grandes empresas e conglomerados do agronegócio em Rio Verde, o que lhe garantiu essa referida posição central no quadro regional. Assim, o objetivo fundamental deste trabalho foi averiguar se esse crescimento agroindustrial foi acompanhado de um expressivo aumento da silvicultura no município, sobretudo de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Silvicultura; Eucalipto; Uso da Terra; Sistema de Informação Geográfica; Silviculture; Eucalyptus; Land use; Land use change; Geographic information systems.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1126480

Chironomidae da Amazonia Oriental: resposta da funcionalidade alimentar aos diferentes usos/cobertura do solo.
Provedor de dados: 14
Autores: SONODA, K. C.; MONTELES, J. S.; FERREIRA, A.; GERHARD, P.
Este trabalho procurou avaliar a utilização da funcionalidade alimentar dos macroinvertebrados da família Chironomidae como ferramenta para mostrar a importância da cobertura e uso do solo nos ecossistemas aquáticos.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Uso da Terra; Cobertura Vegetal; Agricultura; Impacto Ambiental; Chironomidae; Macroinvertebrates; Land use.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1098619

Investigações sobre a estrutura sócio-econômica da várzea.
Provedor de dados: 14
Autores: WITKOSKI, A. C.; SILVA, A. J. I. da; BRASIL, D. F.; MAMED, F. de A.; PEIXOTO, G. N. A.; FRAXE, T. de J. P.; BATISTA, V. da S.; AZEVEDO, C. R. de; CASTELO BRANCO, F. M.; SILVA, M. do P. S. C.; MELLO, R. Q. de; NODA, H.; CAMPOS, M. A.; SARAGOUSSI, M.; COSTA, S. de S.; LIMA, R. M. B. de; FAZZIONI, W.
O metodo, para a atuacao em campo e o "Estudo de Caso", por consistir, no exame intensivo, tanto em amplitude como em profundidade de unidades de estudo, empregando as tecnicas disponiveis para tal. As unidades de estudo enquanto amostra em termos de areas visitadas e aleatoria e correspondem as area onde ocorre concentracao da producao agricola para Manaus; a populacao envolvida com agricultura e incremento a producao de varzea nos municipios de Iranduba, Manaquiri, Careiro da Varzea, Coari, Parintins e Barreirinha.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Products; Production; Flood plains; Agricultura; Produção Agrícola; Uso da Terra; Várzea; Agriculture; Land use.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667677

Caracterização geomorfológica do Município de Barreiras, Oeste Baiano, Escala 1:100.00.
Provedor de dados: 14
Autores: PASSO, D. P.; MARTINS, E. de S.; GOMES, M. P.; BRAGA, A. R. dos S.; CASTRO, K. B.; LIMA, L. A. de S.; CARVALHO JÚNIOR, O. A.; GOMES, R. A. T.
bitstream/item/75883/1/bolpd-294.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Relief; Landscape; Geoprocessing.; Geomorfologia; Mapa; Relevo.; Brazil; Land use; Soil.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/903136

Zoneamento pedoclimático para a banana e o café no município de Feijó.
Provedor de dados: 14
Autores: AMARAL, E. F. do; BARDALES, N. G.; PEREIRA, J. B. M.; BERGO, C. L.; ARAÚJO, E. A. de; MELO, A. W. F. de.
A produção de banana no estado do Acre é uma das atividades agrícolas de maior expressão territorial, pelas facilidades de cultivo, produção continuada ao longo do ano e larga utilização e/ou aceitação nas mais variadas formas de consumo. Nos últimos anos, há uma retomada da cafeicultura no estado do Acre, com ampliação das áreas cultivadas, principalmente com uso de variedades clonais. Em função de uma ação integrada do Ministério da Agricultura, Pecuária e Abastecimento e a Embrapa Acre, foi elaborado o zoneamento pedoclimático da cultura da banana e do café Canéfora para as áreas desmatadas de Feijó. Com base nos atributos de solo (morfológicos, físicos e químicos) e clima (precipitação pluvial, temperatura do ar e déficit hídrico) integrados com as...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Zonificación; Uso de la tierra; Zonas climáticas; Feijó (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Banana; Musa sp; Café; Coffea Canephora; Zoneamento Climático; Reconhecimento do Solo; Zoning; Land use; Climatic zones.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1113214

Levantamento de reconhecimento de alta intensidade dos solos do município de Cametá, Estado do Pará.
Provedor de dados: 14
Autores: SANTOS, P. L. dos; RODRIGUES, T. E.; OLIVEIRA JUNIOR, R. C. de; SILVA, J. M. L. da; VALENTE, M. A.; CARDOSO JUNIOR, E. Q.
bitstream/item/65218/1/Oriental-Doc23.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Cametá; Pará; Brasil; Aptidão Agrícola; Reconhecimento do Solo; Uso da Terra; Amazonia; Land suitability; Land use; Soil surveys.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/380562

Levantamento semidetalhado dos solos do campo experimental de Belterra - Estado do Pará.
Provedor de dados: 14
Autores: SILVA, J. M. L. da; SANTOS, P. L. dos; LIMA, A. A. C.; MARTINS, J. S.; RODRIGUES, T. E.; VALENTE, M. A.; RÊGO, R. S.; CARDOSO JUNIOR, E. Q.
bitstream/item/65251/1/Oriental-Doc57.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Propriedade físico-química do solo; Belterra; Pará; Brasil; Soil chemicophysical properties.; Aptidão Agrícola; Reconhecimento do Solo; Uso da Terra.; Amazonia; Land use; Land suitability; Soil surveys.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382827

Caracterização e classificação dos solos do Campo Experimental de Água Boa - Embrapa Roraima, Boa Vista, RR.
Provedor de dados: 14
Autores: RODRIGUES, T. E.; GAMA, J. R. N. F.; REGO, R. S.; LIMA, A. A. C.; SILVA, J. M. L. da; BARRETO, W. de O.
bitstream/item/63264/1/Oriental-Doc54.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Boa Vista; Roraima; Brasil; Chemophysical properties.; Propriedade Físico-Química; Reconhecimento do Solo; Uso da Terra.; Amazonia; Land use; Soil surveys.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382780

Caracterização e classificação dos solos do Campo Experimental Monte Cristo, da Embrapa Roraima, Boa Vista - Estado de Roraima.
Provedor de dados: 14
Autores: REGO, R. S.; RODRIGUES, T. E.; GAMA, J. R. N. F.; LIMA, A. A. C.; SILVA, J. M. L. da; BARRETO, W. de O.
bitstream/item/63272/1/Oriental-Doc58.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Boa Vista; Roraima; Brasil; Chemophysical properties.; Propriedade Físico-Química; Reconhecimento do Solo; Uso da Terra.; Amazonia; Land use; Soil surveys.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382773

Produção sustentada da agropecuária integrada.
Provedor de dados: 14
Autores: VEIGA, J. B. da; HEBETTE, J.
Tipo: Parte de livro
Palavras-chave: Brasil; Sustainability; Agricultura Sustentável; Sistema de Cultivo; Uso da Terra; Amazonia; Cropping systems; Land use.
Ano: 1992
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/394889

Efeito de diferentes usos da terra nas características do solo no Estado do Acre.
Provedor de dados: 14
Autores: AMARAL, E. F. do; BROWN, I. F.; MELO, A. W. F. de.
O uso da terra na Amazônia está condicionado ao processo de fragmentação florestal. No Acre, o arco do desmatamento é constituído pela BR-364 e BR-317. Este trabalho tem como objetivo avaliar os efeitos do uso da terra nas características químicas e físicas do solo, em uma cronosseqüência de uso em uma área de grande fazendeiro no sudeste acreano. Foi conduzido na fazenda Ponteio, situada às margens da BR-317, no município de Capixaba, sendo georreferenciadas três unidades amostrais, caracterizando o gradiente de pressão antrópica: pasto, capoeira e floresta. Em cada unidade amostral foram retiradas informações sobre o histórico de uso e coletados dados referentes às seguintes características: densidade aparente, resistência do solo até 60 cm...
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Fragmentação florestal; Arco do Desmatamento; Rodovia BR-364; Rodovia BR-317; Fazenda Ponteio; Capixapa (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Propiedades químicas del suelo; Uso de la tierra.; Fragmentación de hábitats; Propiedades fìsicas del suelo; Uso da terra; Solo; Propriedade Físico-Química; Land use; Habitat fragmentation; Soil chemical properties; Soil physical properties.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/495274

Ocorrência de fungos MA em diferentes sistemas de uso da terra em Rondônia e Acre, Brasil.
Provedor de dados: 14
Autores: COSTA, R. S. C. da; COSTA, N. de L.; MENDES, A. M.; RODRIGUES, V. G. S.
Micorrizas são associações de natureza mutualistícas formadas entre fungos do solo e raízes das espécies vegetais. Segundo Harley e Smith, o seu caráter mutualista contribui para sobrevivência e evolução das plantas terrestres e dos fungos, pois o fungo simbionte aumenta a capacidade da planta de absorver nutrientes do solo, principalmente o fósforo, favorecendo sua nutrição enquanto a planta fornece fotossintatos para o fungo que é incapaz de realizar fotossintese.Entre tais associações encontram-se as micorrizas arbusculares (MA), pertenentes à classe dos Zygomycetes, ordem Glomales.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Micorriza arbuscular; Acre; Rondônia; Amazônia Ocidental; Western Amazon; Uso da Terra; Fungo; Land use; Fungi; Vesicular arbuscular mycorrhizae.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/697622

Serviços ecossitêmicos decorrentes do uso da terra.
Provedor de dados: 14
Autores: PAVAN, A. L. R.; OMETTO, A. R.; ALVARENGA, R. A. F. De; NETO, J. A. De A.; FIGUEIREDO, M. C. B. de; UGAYA, C. M. L.
bitstream/item/210918/1/CLV19037.pdf
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Recursos naturais; Dinâmica dos ecossistemas; Ciclo da água; Uso da Terra; Erosão; Águas Subterrâneas; Land use; Erosion control; Groundwater.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118330

Aptidao agricola das terras da Bacia do Rio Jardim, DF.
Provedor de dados: 14
Autores: SPERA, S. T.; REATTO, A.; MARTINS, E. de S.; CORREIA, J. R.; BLOISE, G. de L. F.; SILVA, A. V. da.
bitstream/CPAC-2009/24558/1/comtec_90.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bacia do Rio Jardim; Distrito Federal; Brasil.; Aptidão Agrícola; Cambissolo; Cerrado; Latossolo; Perfil do Solo; Reconhecimento do Solo; Uso da Terra.; Solo; Cambisols; Brazil; Ferralsols; Land use; Soil; Soil profiles; Soil surveys.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/558917

Levantamento de solos de alta intensidade e mapeamento da cobertura vegetal e uso da terra do município de Colares - Estado do Pará.
Provedor de dados: 14
Autores: SILVA, J. M. L. da; GAMA, J. R. N. F.; VALENTE, M. A.; RÊGO, R. da S.; RODRIGUES, T. E.; SANTOS, P. L. dos; CARDOSO JUNIOR, E. Q.; SILVA, P. R. O. da.
bitstream/item/61924/1/Oriental-Doc27.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Colares; Pará; Brasil; Plant cover.; Cobertura Vegetal; Reconhecimento do Solo; Uso da Terra.; Amazonia; Land use; Soil surveys.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/388954

Avaliação da aptidão agrícola das terras do campo experimental de Belterra - Estado do Pará.
Provedor de dados: 14
Autores: SANTOS, P. L. dos; SILVA, J. M. L. da; MARTINS, J. S.; RODRIGUES, T. E.; VALENTE, M. A.
bitstream/item/61670/1/Oriental-Doc7.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Belterra; Pará; Brasil.; Aptidão Agrícola; Reconhecimento do Solo; Uso da Terra.; Amazonia; Land use; Land suitability; Soil surveys.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/380560

Calibração da técnica de Time Domain Reflectometry (TRD) para avaliação da umidade do solo, em um Latossolo Amarelo, textura muito argilosa, com diferentes valores de densidade aparente do solo - avaliação no campo.
Provedor de dados: 14
Autores: TEIXEIRA, W. G.; FACCIN, O. P.; AZEVEDO, C. P. de; HUWE, B.; SCHROTH, G.
Avaliação de umidade volumetrica do solo pela técnica de time Domain Reflectometry (TDR) para Latossolo Amarelo (Xanthic ferralsol - FAO) textura muito argilosa, com diferentes valores de p. Foram determinados os coeficientes de determinacao ajustada (R2) e o erro padrao da media. Realizou-se um ajuste por regressao multipla para P e E, selecionando-se as variaveis que contribuiam significativamente para o modelo por procedimentos de selecao stepwise. Como a variacao dos valores de p esta diretamente relacionada ao uso do solo (especie presente e o manejo praticado), foram observadas importantes diferencas entre as P das areas cultivadas e as da floresta primaria. Os valores reduzidos de P proxima as plantas de pupunha (Bactris gasipaes H.B.K.) em relacao...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Propriedade fisica; Fluxo; Brasil; Amazonas; Tropical rain forest; Moisture; Fluxes; Água; Bactris Gasipaes; Cupuaçu; Floresta Tropical Úmida; Kudzu; Pueraria Phaseoloides; Pupunha; Solo; Theobroma Grandiflorum; Umidade; Uso da Terra; Density; Land use; Physical properties; Soil; Water.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667398

Caracterização geomorfológica do Município de Riachão das Neves, Oeste Baiano, escala 1: 100.000
Provedor de dados: 14
Autores: LIMA, L. A. de S.; MARTINS, E. de S.; GOMES, M. P.; BRAGA, A. R. dos S.; PASSO, D. P.; CASTRO, K. B. de; CARVALHO JÚNIOR, O. A.; GOMES, R. A. T.
bitstream/item/75884/1/bolpd-295.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Relief; Landscape; Geoprocessing.; Geomorfologia; Relevo; Solo.; Brazil; Land use; Soil.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/903452

Diálogos e percepções para construção de alternativas de uso sustentável da terra (2009).
Provedor de dados: 14
Autores: CORREIA, J. R.; VILELA, M. de F.; CARRARA, A. A.; SEVILHA, A. C.; OLIVEIRA, M. D. de; SOARES, E. P.; SANO, S. M.; SANTOS, A. E. dos.
bitstream/item/78149/1/p2009-039.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agricultura Sustentável.; Land use; Sustainable agriculture.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/748066

Sistemas agroflorestais: manejando a biodiversidade e compondo a paisagem rural - resumos expandidos.
Provedor de dados: 14
Autores: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 3., 2000, Manaus.
Manejo e uso da biodiversidade em sistemas agroflorestais. Integracao dos sistemas agroflorestais no planejamento da paisagem rural. Insercao de sistemas agroflorestais em acoes de desenvolvimento, centradas no homem e na comunidade, na Amazonia brasileira.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Sustainability.; Biodiversidade; Desenvolvimento Sustentável; Floresta Tropical Úmida; Uso da Terra.; Amazonia; Agroforestry; Biodiversity; Land use; Tropical rain forests.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/670585

Dinâmica da cobertura vegetal e do uso da terra do "polígono dos castanhais" no sudeste paraense.
Provedor de dados: 14
Autores: SAMPAIO, S. M. N.; WATRIN, O. dos S.; VENTURIERI, A.
bitstream/item/61977/1/Oriental-Doc31.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Dinâmica da paisagem; Manejo de recurso; Geoprocessamento; Pará; Brasil; Physiographic features; Plant cover; Landscape.; Cobertura Vegetal; Clima; Levantamento Fisiográfico; Sensoriamento Remoto; Uso da Terra; Vegetação.; Amazonia; Climate; Land use; Remote sensing; Resource management; Vegetation.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/382642

Aptidão agrícola das terras da bacia hidrográfica do Ribeirão Taguatinga, Distrito Federal.
Provedor de dados: 14
Autores: SPERA, S. T.; REATTO, A.; MARTINS, E. de S.; FARIAS, M. F. R.; SILVA, A. V. da.
RESUMO: A área da bacia hidrográfica do Ribeirão Taguatinga (Área de Relevante Interesse Ecológico Juscelino Kubitschek - ARIE JK), no Distrito Federal, tem superfície de 77,50 km2. As principais classes de solos que ocorrem nessa área são: Latossolos, Argissolos, Cambissolos, Gleissolos, Plintossolos, Neossolos Fúvicos e Neossolos Quartzarênicos cujas principais características químicas, físicas e morfológicas estão apresentadas neste trabalho com o objetivo de subsidiar projetos de desenvolvimento e assentamentos locais. Em realação à aptidão agrícola, os Latossolos são classificados como 2(b)c, 2c e 3(c) e os Argissolos como 2(b)c. Os Cambissolos como 5(n) e 6. Os Gleissolos são classificados como 3(b)c, 3(c) e 5(n), enquanto os Plintossolos apresentam...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Mapeamento; Plintossolo; Gleissolo; Plinthic soil.; Aptidão Agrícola; Cambissolo; Classificação do Solo; Cerrado; Latossolo; Oxisol; Uso da Terra.; Solo; Inceptisols; Brazil; Land suitability; Land use; Soil surveys.; Soil classification; Soil.
Ano: 2004
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569094

Diagnóstico e planejamento de sistemas agroflorestais na microbacia Ribeirão Novo, Município de Wenceslau Braz, Estado do Paraná.
Provedor de dados: 14
Autores: MEDRADO, M. J. S.; RODIGHERI, H. R.; FOWLER, J. A. P.; LOURENÇO, R. S.; CARDOSO, A.; PINTO, A. F.; PEREIRA, L. C.; MOREIRA. J.
bitstream/item/17050/1/doc35.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Sistema agroflorestal; Parana; Diagnostics.; Manejo; Integração; Diagnostico; Planejamento; Uso da Terra.; Agroforestry; Land use; Planning.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/293957

Politica de ocupacao e utilizacao dos cerrados.
Provedor de dados: 14
Autores: WAGNER, E.
Ressalta-se a necessidade de ocupar espacos agricolas, em funcao do crescimento da populacao mundial e, particularmente, da regiao Centro-Oeste do pais. Sao descritas, superficialmente, as caracteristicas dos cerrados, com vantagem em relacao ao Norte e Nordeste; tambem sao apresentados os principais aspectos limitantes a sua ocupacao e utilizacao. Sao esbocadas conclusoes que: vinte e cinco anos e o prazo maximo para a ocupacao plena dos cerrados; essa ocupacao deve levar em conta as diferencas entre sub-regioes, pelo menos em tres faixas ou paralelos; ela deve se dar em termos agrossilvipastoris; numa acao, nao por produto mas a nivel de estabelecimento ou propriedade. Finalmente, e recomendado que a ocupacao dos cerrados, se dando ao mesmo tempo em que...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Desenvolvimento; Regiao Centro-Oeste; Brasil; Center-Western Region; Policies; Política de ocupação; Região de Cerrado; Rural settlement; Utilização.; Agricultura; Cerrado; Ocupação; Uso da Terra.; Solo; Agriculture; Brazil; Land use; Soil.
Ano: 1981
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/547288

Zoneamento pedoclimático para o café no município de Plácido de Castro.
Provedor de dados: 14
Autores: BARDALES, N. G.; AMARAL, E. F. do; PEREIRA, J. B. M.; BERGO, C. L.; ARAÚJO, E. A. de; AMARAL, E. F. do; MELO, A. W. F. de.
Devido à retomada da cafeicultura no estado do Acre, sua importância econômica, atendendo as demandas do poder público municipal no tocante à política de fomento à cultura do café no município de Plácido de Castro e em função de uma ação integrada do Ministério da Agricultura, Pecuária e Abastecimento e a Embrapa Acre, foi elaborado o zoneamento pedoclimático da cultura do café Canéfora para as áreas desmatadas do município.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Zoneamento pedoclimático; Zonificación; Uso de la tierra; Zonas climáticas; Plácido de Castro (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Café; Coffea Canephora; Zoneamento Climático; Reconhecimento do Solo; Zoning; Land use; Climatic zones.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117396

Aptidao agricola das terras da Bacia do Rio Jardim, DF.
Provedor de dados: 14
Autores: SPERA, S. T.; REATTO, A.; MARTINS, E. de S.; CORREIA, J. R.
bitstream/CPAC-2009/24598/1/bolpd_27.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: ECOSOL110; Bacia do Rio Jardim; Distrito Federal; Brasil.; Aptidão Agrícola; Cambissolo; Cerrado; Latossolo; Perfil do Solo; Reconhecimento do Solo; Uso da Terra.; Solo; Cambisols; Brazil; Ferralsols; Land use; Soil profiles; Soil surveys.; Soil.
Ano: 2002
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/556676

Inventário de emissões antrópicas e sumidouros de gases de efeito estufa do Estado do Acre: ano-base 2010.
Provedor de dados: 14
Autores: COSTA, F. de S.; AMARAL, E. F. do; BUTZKE, A. G.; NASCIMENTO, S. da S.
Circunstâncias estaduais; Inventário das emissões atrópicas e sumidouros de gases de efeito estufa do Estado do Acre; Descrição das providências previstas ou tomas para a implementação da Convenção-Quadro das Nações Unidas sovre mudança do clima no Acre.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Inventário de Gases de Efeito Estufa (GEE); Sumidouros de gases; Desechos sólidos; Emissões antrópicas; Vehicles; Cambio climático; Efecto invernadero; Gases de invernadero; Reservorios de carbono; Actividades antropogénicas; Estimación del riesgo; Uso de la tierra; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental.; Mudança Climática; Eliminação de Resíduo; Efeito Estufa; Carbono; Estoque; Estimativa; Energia Elétrica; Uso da Terra; Resíduo Solido.; Veiculo; Carbon sinks; Risk estimate; Anthropogenic activities; Electric power industry; Land use; Solid wastes.; Climate change; Greenhouse effect; Greenhouse gases.
Ano: 2012
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/928097

Mapa de biomassa seca acima do solo da Terra Indígena Kaxinawá Nova Olinda, município de Feijó, estado do Acre.
Provedor de dados: 14
Autores: OLIVEIRA, M. V. N. d'; MELO, A. W. F. de; AMARAL, E. F. do; HAVERROTH, M.
O projeto da Embrapa Acre junto à TIKNO buscou estudar o etnoconhecimento e as práticas ligados aos recursos naturais e à agrobiodiversidade, promover sua valorização por meio de ações de intercâmbio e troca de saberes, investir em melhorias dos sistemas produtivos e extrativistas, na conservação de recursos genéticos e nos serviços ecossistêmicos.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Uso de la tierra; Efecto invernadero; Gases de invernadero; Reservorios de carbono; Povos indígenas; Pueblos indígenas; Forest maps; Mapas forestales; Biomasa aérea; Servicios ecosistémicos; Sistema de Incentivos a Serviços Ambientais (Sisa); Terra Indígena Kaxinawá de Nova Olinda (TIKNO); Feijó (AC); ISA Carbono; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Uso da Terra; Efeito Estufa; Carbono; Planejamento Florestal; Biomassa; Parte Aérea; Mapa; Políticas Públicas; Land use; Greenhouse effect; Greenhouse gases; Carbon sinks; Indigenous peoples; Aboveground biomass; Public policy; Ecosystem services.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121756

Aptidão agrícola das terras da bacia do alto curso do Rio Descoberto, DF/GO, escala de 1:100.000.
Provedor de dados: 14
Autores: SPERA, S. T.; BRAGA, A. R. dos S.; MARTINS, E. de S.; CARDOSO, E. A.; CARVALHO JUNIOR, O. A. de; GUIMARÃES, R. F.; SILVA, A. V. da; FARIAS, M. F. R.
bitstream/CPAC-2010/31882/1/bolpd-115.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Cerrado; Solo; Uso da terra; Soil; Land use.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/853990

Caracterização e uso de solos em sistema de agricultura familiar no município de Natividade, TO.
Provedor de dados: 14
Autores: SANTOS, F. C.; REATTO, A.; MORAES, B. L. F.; ZOBY, J. L. F.
bitstream/CPAC-2009/26886/1/p2005_62.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Mapeamento; Uso do solo.; Classificação do Solo; Reconhecimento do Solo.; Land use; Soil surveys.; Soil classification.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/569492

Caracterização de sistemas de uso da terra e planejamento de ações para melhoria do sistema agroflorestal da erva-mate (Ilex paraguariensis St. Hil.) no município de Mato Leitao, RS.
Provedor de dados: 14
Autores: Embrapa. Centro Nacional de Pesquisa de Florestas (Colombo, PR), coord.
bitstream/item/162212/1/Doc-30.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Sistema agroflorestal; Rio Grande do Sul; Erva mate; Diagnostics.; Espécie nativa; Manejo; Integração; Diagnostico; Planejamento; Uso da Terra.; Agroforestry; Land use; Planning.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/290870

Solos da ilha de Santana, município de Santana, Estado do Amapá.
Provedor de dados: 14
Autores: VALENTE, M. A.; OLIVEIRA JUNIOR, R. C. de; RODRIGUES, T. E.; SANTOS, P. L. dos; SILVA, J. M. L. da; CARDOSO JUNIOR, E. Q.
bitstream/item/61290/1/CPATU-Doc138.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Extrativismo; Santana; Amapá; Brasil; Extractivism.; Aptidão Agrícola; Agricultura; Clima; Pecuária; Reconhecimento do Solo; Uso da Terra; Vegetação.; Agriculture; Amazonia; Climate; Land suitability; Land use; Livestock; Soil surveys; Vegetation.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376595

Single-tree effects on soil organic matter properties of a xanthic Ferralsol in the central Amazon.
Provedor de dados: 14
Autores: LEHMANN, J.; CRAVO, M. da S.
Studies on: a) identification soil pools which are sensitive to land-use changes on the terra firme; b) evaluation of the potential of different trees to increase soil organic matter (SOM) contents; and c) elucidation of the the mechanisms of SOM replenishment in Ferralsols of the central Amazon. Conclusions: using aggregate fractionation together with the chemical characterisation of SOM, the processes of incorporation of plant litter into stable SOM could be successfully studied in the strongly aggregated Ferralsol. Thus, it could be shown that aggregation promoted the stabilisation of SOM, but SOM did not incrase aggregate stability. The particulate organic matter was an important and valid indicator of the effects of different organic inputs on SOM...
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Fertilidade do Solo; Floresta Tropical Úmida; Uso da Terra; Agroforestry; Land use; Soil fertility; Tropical rain forests.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668338

Caracterização geomorfológica do Município de Correntina, Oeste Baiano, Escala 1:100.000.
Provedor de dados: 14
Autores: LIMA, L. A. de S.; MARTINS, E. de S.; GOMES, M. P.; BRAGA, A. R. dos S.; PASSO. D. P.; CASTRO, K. B. de; CARVALHO JÚNIOR, O. A.; GOMES, R. A. T.
bitstream/item/75874/1/bolpd-287.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Relief; Ladscape; Geoprocessing.; Geomorfologia; Relevo; Solo.; Brazil; Land use; Soil.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/903457

Metodologia simplificada de zoneamento agroflorestal.
Provedor de dados: 14
Autores: AMARAL, E. F. do; MELO, A. W. F. de; ANDRADE, E. P. de; FRANKE, I. L.; LUNZ, A. M. P.; ARAÚJO, E. A. de.
Em 1999, o governo do Acre iniciou o processo de implantação de pólos agroflorestais e demandou uma proposta de estudo prévio e planejamento de ocupação das propriedades que seriam adquiridas para implantar os referidos pólos. A metodologia de levantamento das áreas propícias à implantação dos pólos agroflorestais, efetuada pelo governo do Estado, por intermédio da Sepro, é considerada inovadora, uma vez que, antes das famílias serem assentadas, é realizado o levantamento do meio físico e da capacidade de uso do solo, na tentativa de não incorrer nos erros do passado em que muitas famílias foram assentadas em locais inóspitos e sem um levantamento prévio das condições edáficas e do meio físico. Este trabalho objetiva descrever o procedimento metodológico...
Tipo: Circular Técnica (INFOTECA-E)
Palavras-chave: Metodologia; Pólo agroflorestal; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Zonificación agrícola.; Uso de la tierra; Comunidades rurales; Agricultura comunitaria; Planejamento florestal; Zoneamento florestal; Zoneamento agrário; Comunidade rural; Assentamento; Uso da terra; Rural communities; Community supported agriculture; Land use; Agricultural zoning.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/496244

Inventário de emissões antrópicas e sumidouros de gases de efeito estufa do Estado do Acre: ano-base 2014.
Provedor de dados: 14
Autores: AMARAL, E. F. do; BARDALES, N. G.; MARTORANO, L. G.; COSTA, F. de S.; MELO, A. W. F. de; ARAÚJO, E. A. de; MATTOS, J. C. P.; OLIVEIRA, M. V. N. d'; VALENTIM, J. F.; OLIVEIRA, C. H. A. de; LANI, J. L.
Para a quantificação das emissões de GEE, a elaboração de um inventário é a ferramenta mais utilizada pelos governos e instituições privadas. Esse compreende a quantificação de GEE emitidos como decorrência das atividades diretas e indiretas de uma organização ou território e contabiliza a emissão de todas as fontes definidas em grupos de atividades associadas a uma empresa ou território. Esse guia fornece os subsídios para a elaboração de inventários de emissões de GEE por empresas e organizações diversas. Os gases considerados em seu escopo estão no Protocolo de Quioto: dióxido de carbono (CO2), metano (CH4), óxido nitroso (N2O), hexafluoreto de enxofre (SF6), hidrofluorcarbonos (HFCs), perfluorcarbonos (PFCs). Este inventário apresenta as estimativas...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Inventário de Gases de Efeito Estufa (GEE); Sumidouros de gases; Emissões antrópicas; Vehicles; Cambio climático; Efecto invernadero; Gases de invernadero; Reservorios de carbono; Actividades antropogénicas; Estimación del riesgo; Uso de la tierra; Desechos sólidos; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Mudança Climática; Efeito Estufa; Carbono; Estoque; Estimativa; Energia Elétrica; Veiculo; Uso da Terra; Eliminação de Resíduo; Resíduo Solido; Climate change; Greenhouse effect; Greenhouse gases; Carbon sinks; Risk estimate; Anthropogenic activities; Electric power industry; Land use; Solid wastes.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1105534

Critérios metodológicos e potencial climático do Estado de Alagoas para culturas agrícolas nos cenários pluviométricos seco, regular e chuvoso.
Provedor de dados: 14
Autores: BARROS, A. H. C.; VAREJÃO-SILVA, M. A.; TABOSA, J. N.; SILVA, A. B. da; ARAUJO FILHO, J. C. de; SANTIAGO, G. A. C. F.
Este trabalho apresenta a aptidão climática do Estado de Alagoas para oito culturas agrícolas: algodão herbáceo, cana-de-açúcar, feijão phaseolus, feijão vigna, mamona, mandioca, milho e sorgo. O estudo foi desenvolvido pela Embrapa Solos UEP Recife, em parceria com o Governo do Estado de Alagoas / Secretaria de Estado da Agricultura e Desenvolvimento Agrário, com o objetivo de gerar informações para subsidiar o planejamento e o aperfeiçoamento do uso das terras do estado. No que se refere à metodologia, foram utilizados procedimentos diferentes dos tradicionalmente adotados nos zoneamentos climáticos, os quais se baseiam nas médias históricas dos totais mensais de chuva. Nesta nova abordagem, três cenários pluviométricos foram considerados: anos secos,...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Zoneamento Climático; Clima; Pluviometria; Planejamento; Uso da Terra; Zoning; Climate; Planning; Land use.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1097194

Investigations on tree species suitable for the recultivation of degraded land areas in Central Amazonia.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 42-2.
In cooperation with the Embrapa Amazonia Ocidental in Manaus (Amazonas, Brasil) and three German projects (ENV 23, ENV 45, ENV 52), in the year 2000 we especially investigated (1) photosynthesis and carbohydrate allocation and (2) the plant-water relationships of the selected tree species. Special emphasis was given to the three species of the family Meliaceae. Comparative experiments have been done for monoculture, polycultures, enrichment cultures, and primary forests.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Recuperaco do solo; Agrofloresta; Especie florestal; Fotossinte; Brasil; Amazonas; Tropical rain forest; Reclamation; Sustainability; Species; Plant water relations; Andiroba; Árvore Florestal; Carapa Guianensis; Carboidrato; Cedrela Odorata; Cedro; Cultivo Multiplo; Desenvolvimento Sustentável; Deterioração do Solo; Floresta Tropical Úmida; Mogno; Relação Água-Planta; Swietenia Macrophylla; Uso da Terra; Agroforestry; Carbohydrates; Environmental degradation; Forest trees; Land use; Multiple cropping; Photosynthesis.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/670721

A new approach to agriculture is emerging in the world's tropical belt.
Provedor de dados: 14
Autores: LOPES, M. A.
Options Summer 2019: Embrapa visiting scholar Mauricio Antonio Lopes writes about how policies informed by science are contributing to advances in Brazil?s agricultural sector.
Tipo: Artigo de divulgação na mídia (INFOTECA-E)
Palavras-chave: Setor agrícola brasileira; Embrapa; Políticas Públicas; Uso da Terra; Agricultura Sustentável; Setor Agrícola; Public policy; Land use; Sustainable agriculture.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123784

A conservação de bacias e os desafios para a sustentabilidade da agricultura.
Provedor de dados: 14
Autores: FIGUEIREDO, R. de O.; GREEN, T. R.
Resumo: Esta publicação aborda a complexidade e os desafios para que se alcance a sustentabilidade no uso da terra, no tocante à conservação dos recursos hídricos e respectivas bacias hidrográficas. Trata da dinâmica de alterações nos processos biogeoquímicos e hidrológicos presentes nas bacias onde o ecossistema natural é modificado. Considera, também, as variações temporais e espaciais distintas, dependendo das características biofísicas e biogeoquímicas originais da bacia, ao lado do uso da terra presente. Os autores abordam como e porque a bacia hidrográfica deve ser considerada a unidade de estudo primordial nas análises ambientais que visam a conservação de recursos hídricos. São, assim, considerados os processos naturais, o manejo agropecuário, a...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Sustentabilidade ambiental; Bacia Hidrográfica; Uso da Terra; Qualidade da Água; Agricultural watersheds; Watersheds; Land use; Land use change; Water quality.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112886

Levantamento de solos semidetalhado sob crescimento de castanhal nativo na região leste do Acre.
Provedor de dados: 14
Autores: FERREIRA, R. R. M.; BARDALES, N. G.; SILVA, L. M. da; MIQUELONI, D. P.; WADT, L. H. de O.
A castanheira (Bertholletia excelsa Bonpl.) é uma espécie que ocorre em toda a região Amazônica e o único produto no mercado internacional com produção, quase exclusivamente, em florestas tropicais primárias. Apesar de todos os esforços dos pesquisadores em detalhar ao máximo os níveis de mapeamento, os estudos pedológicos ainda são poucos em escala de maior detalhe, principalmente, em áreas mais remotas como os seringais. O levantamento de solos dessas localidades no Acre é de fundamental importância para o seu desenvolvimento, além de fornecer subsídios primordiais para o melhor uso da terra, auxiliando na geração de renda e no melhor aproveitamento dos recursos naturais com menor impacto possível ao ambiente. Este trabalho teve por objetivo apresentar a...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Levantamento semidetalhado; Produto florestal não madeireiro (PFNM); Castanha do brasil; Seringal Cachoeira; PAE Chico Mendes; Xapuri (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Clasificación de suelos; Nuez del Brasil; Reconocimiento de suelos; Suelos arcillosos; Uso de la tierra.; Castanha do pará; Bertholletia excelsa; Uso da terra; Reconhecimento do solo; Classificação do solo; Argissolos; Análise do solo; Brazil nuts; Land use; Soil surveys; Soil classification; Clay soils.
Ano: 2017
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1087703

Uso da terra no municipio de Aquidauana em 1990 - Pantanal.
Provedor de dados: 14
Autores: SILVA, J. dos S. V. da; ROMERO, H. R.; MARISCO, N.
Este trabalho tem como objetivo identificar as formas de uso da Terra no municipio de Aquidauana, localizado no sudeste do Pantanal, em Mato Grosso do Sul. Foram mapeadas as areas antropicas e identificadas e quantificadas as respectivas classes tematicas de uso. Utilizaram-se imagens de satelite Landsat 5-TM, em papel, na escala 1:250.000, na composicao colorida 3B, 4G e 5R para espacializacao das informacoes e um Sistema de Informacoes Geograficas para a quantificacao das areas. A area do municipio foi calculada em 1.485.526 ha, dos quais 76,8% esta inserida na planicie do Pantanal. Foram mapeadas as seguintes classes de uso: Area Natural (88,42%), Pastagem Cultivada (11,34%), Area Urbana (0,12%) e Area Agricola (0,12%). As terras do municipio sao...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Area antropica; GIS; Antropogenic areas; Geographic information system.; Sensoriamento Remoto; Sistema de Informação Geográfica; Uso da Terra.; Pantanal; Land use; Remote sensing.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/790958

Soil fauna and litter decomposition in primary and secondary forests and a mixed culture system in Amazonia.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 52 (Manaus-AM).
Estudo sobre a fauna do solo e decomposicao da serapinheira feito em tres diferentes ecossistemas na Amazonia central: (1) floresta primaria (FLO), (2) floresta secundaria (SEC), e (3) duas parcelas de cultivo misto (POA, POC). As pesquisas incluiram a avaliacao da producao e estoque de serapilheira, parametros do solo, fatores microclimaticos, abundancia e biomassa da fauna do solo, determinacao da respiracao no solo e biomassa microbiana, medidas das taxas de respiracao dos componenetes da fauna, e analises de micronutrientes. Apesar das diferencas observadas entre as areas de estudo, foi observado que em todas elas o sistema de decomposicao da serapilheira foi controlado pela macrofauna, e que, em todos os sistemas de cultivo estudados, as condicoes...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Sustainability; Agrossilvicultura; Conservação do Solo; Cultivo Multiplo; Decomposição; Desenvolvimento Sustentável; Fauna Edáfica; Fertilidade do Solo; Floresta Tropical Úmida; Serapilheira; Uso da Terra; Agroforestry; Degradation; Forest litter; Land use; Multiple cropping; Soil conservation; Soil fauna; Soil fertility; Tropical rain forests.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669549

Evolução do uso e desmatamento evitado na Terra Indígena Kaxinawá Nova Olinda, Feijó, AC, Brasil.
Provedor de dados: 14
Autores: AMARAL, E. F. do; OLIVEIRA, M. V. N. d'; MELO, A. W. F. de; OLIVEIRA, C. H. A. de; HAVERROTH, M.
Este fôlder mostra a síntese dos resultados para estabelecimento de níveis de referência à Terra Indígena Kaxinawá Nova Olinda (TIKNO) e indica caminhos para uma estratégia de alinhamento das emissões evitadas em uma terra protegida.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Servicios ecosistémicos; Sistema de Incentivos a Serviços Ambientais (Sisa); ISA Carbono; Níveis de referência; Uso de la tierra; Efecto invernadero; Gases de invernadero; Reservorios de carbono; Pueblos indígenas; Povos indígenas; Terra Indígena Kaxinawá de Nova Olinda (TIKNO); Feijó (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Uso da Terra; Efeito Estufa; Carbono; Políticas Públicas; Land use; Greenhouse effect; Greenhouse gases; Carbon sinks; Indigenous peoples; Public policy; Ecosystem services.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1121675

Utilização de metodologia participativa para caracterização do ambiente de uma propriedade do assentamento Santa Clara a partir do saber local (2009).
Provedor de dados: 14
Autores: JESUS, L. A. M. de; CORREIA, J. R.; CAXITO, J. J.; ALMEIDA, S. C. R. de.
bitstream/item/78310/1/p2009-097.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Small farmers.; Agricultura Familiar; Uso da Terra.; Land use; Soil chemistry; Soil physics.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/737113

Solos e aptidao agricola das terras da Bacia do Olaria, DF.
Provedor de dados: 14
Autores: SPERA, S. T.; REATTO, A.; CORREIA, J. R.; MARTINS, E. de S.; BLOISE, G. de L. F.; SILVA, A. V. da.
bitstream/CPAC-2009/24557/1/comtec_88.pdf
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Bacia do Olaria; Distrito Federal; Brasil; Soils surveys.; Aptidão Agrícola; Cerrado; Perfil do Solo; Reconhecimento do Solo; Solo; Uso da Terra.; Brazil; Land use; Soil profiles.; Soil.
Ano: 2003
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/558444

Mapeamento dos solos da estação de piscicultura de Castanhal, PA.
Provedor de dados: 14
Autores: TENORIO, A. R. de M.; GRACA, J. J. da C.; GOES, J. E. M.; MENDEZ, J. R.; GAMA, J. R. N. F.; SILVA, P. R. O. da; CHAGAS, P. S. M. das; SILVA, R. N. P. da; AMERICO, R. R.; PEREIRA, W. L. M.
bitstream/item/223708/1/Mapeamento-dos-solos-da-estacao.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Castanhal; Pará; Brasil; Classificação do Solo; Manejo do Solo; Reconhecimento do Solo; Uso da Terra; Amazonia; Land use; Soil classification; Soil management; Soil surveys.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374949

Cultura do maracujazeiro no Estado do Acre.
Provedor de dados: 14
Autores: ANDRADE NETO, R. de C.; NOGUEIRA, S. R.; NEGREIROS, J. R. da S.; NASCIMENTO, G. C. do.
Práticas agrícolas, como escolha e manejo adequado do solo, utilização de cultivares adaptadas à região, adoção de espaçamentos corretos, além de calagem e adubação, irrigação, podas, polinizações manuais, controle fitossanitário de pragas, entre outras, podem levar o maracujazeiro a atingir altas produtividades. Desse modo, a Embrapa Acre coloca à disposição dos produtores, professores e extensionistas, de forma objetiva e concisa, uma importante publicação que aborda as práticas inerentes ao cultivo do maracujazeiro de forma sustentável e econômica.
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Producción de plántulas; Yellow passion fruit; Análisis económico; Uso de la tierra; Cultivares; Prácticas de cultivo vegetal; Huertos frutales; Encalado; Aplicación de fertilizantes; Irrigación; Polinización; Control de malezas; Plagas de plantas; Enfermedades y desórdenes de las plantas; Cosecha; Tratamiento postcosecha; Comercialización; Economía de mercado; Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental.; Maracujá; Passiflora Edulis; Sistema de Produção; Uso da Terra; Variedade; Pratica Cultural; Muda; Produção; Pomar; Calagem; Adubação; Irrigação; Poda; Polinização; Erva Daninha; Praga de Planta; Doença de Planta; Colheita; Mercado.; Comercialização; Pós-Colheita; Análise Econômica; Pruning; Weed control; Plant pests; Plant diseases and disorders; Harvesting; Postharvest treatment; Commercialization; Market economy.; Fertilizer application; Irrigation; Pollination; Economic analysis; Land use; Cultivars; Plant cultural practices; Seedling production; Orchards; Liming.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132364

Mapeamento e análise da dinâmica de uso e da cobertura do solo em comunidades tradicionais do Alto Rio Pardo, Minas Gerais.
Provedor de dados: 14
Autores: VILELA, M. de F.; CORREIA, J. R.; SANO, S. M.; SEVILHA, A. C.; MACHADO, C. T. de T.; FERNANDES, S. G.; CARRARA, A. A.; FRANZ, C. A. B.
bitstream/CPAC-2010/31581/1/bolpd-236.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Cerrado; Solo; Uso da terra; Soil; Land use.
Ano: 2009
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/697557

Avaliação da aptidão agrícola das terras do município de Colares - Estado do Pará.
Provedor de dados: 14
Autores: SILVA, J. M. L. da; GAMA, J. R. N. F.; VALENTE, M. A.; RÊGO, R. S.; RODRIGUES, T. E.; SANTOS, P. L. dos; CARDOSO JUNIOR, E. Q.; SILVA, P. R. O. da.
bitstream/item/61860/1/Oriental-Doc21.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Colares; Pará; Brasil; Map.; Aptidão Agrícola; Mapa; Uso da Terra; Solo.; Amazonia; Land suitability; Land use; Soil.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/377450

Caracterização dos produtores do Núcleo Rural do Buriti Vermelho: aspectos sociais, geográficos e de uso do solo e da água.
Provedor de dados: 14
Autores: MOREIRA, J. M. M. A. P.; SOUSA, T. C. R. de; SOUZA, M. A.; AGUIAR, J. L. P. de; BELCHIOR, E. B.; RODRIGUES, L. N.
bitstream/item/75880/1/bolpd-292.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Produtor rural; Production systems; Irrigation system.; Irrigação; Solo.; Farmers; Land use; Socioeconomic factors.
Ano: 2010
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/902783

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45 (Manaus-AM).
This is the third annual report of the project summarizing the results of 1997. The results of the biomass determination and nutrient uptake are included which were conducted during 1996/97. First results from stand hydrology (stemflow, throughfall) and soil nitrogen dynamics are incorporated. The report is devided into two parts. In the main part, the project team is presented and is activities throughout the year 1997 are briefly summarized. The annexes give detailed information on selected research activities of the project. The research programme could be conducted according to the schedule outlined in previous report. This detailed and integrated analyses of the soil nutrient and water dynamics is yet to be done. This will involve mathematical...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Tropical rain forest; Água; Balanço Hídrico; Biomassa; Floresta Tropical Úmida; Nutriente; Solo; Transporte de Nutriente; Uso da Terra; Biomass; Land use; Nutrient uptake; Nutrients; Soil; Water; Water balance.
Ano: 1997
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/667941

Zoneamento pedoclimático para o abacaxi e o café no município de Tarauacá.
Provedor de dados: 14
Autores: AMARAL, E. F. do; BARDALES, N. G.; PEREIRA, J. B. M.; ANDRADE NETO, R. de C.; BERGO, C. L.; ARAÚJO, E. A. de; AMARAL, E. F. do; MELO, A. W. F. de.
A produção de abacaxi no estado do Acre vem crescendo anualmente e em Tarauacá é uma cultura histórica e tradicional. Nos últimos anos, há uma retomada da cafeicultura no estado, com ampliação das áreas cultivadas, principalmente com uso de variedades clonais. Em função de uma ação integrada do Ministério da Agricultura, Pecuária e Abastecimento e a Embrapa Acre, foi elaborado o zoneamento pedoclimático da cultura do abacaxi e do café Canéfora para as áreas desmatadas de Tarauacá.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Zoneamento pedoclimático; Zonificación; Uso de la tierra; Zonas climáticas; Tarauacá (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Abacaxi; Ananás Comosus; Café; Coffea Canephora; Zoneamento Climático; Reconhecimento do Solo; Zoning; Land use; Climatic zones.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1117167

Zoneamento uma solução tecnológica para gestão territorial.
Provedor de dados: 14
Autores: AMARAL, E. F. do; BARDALES, N. G.; OLIVEIRA, T. K. de.
O zoneamento é uma ferramenta que visa diminuir riscos na atividade agropecuária e permitir a tomada de decisões a partir de conhecimento técnico adequado para tornar mais eficientes o ordenamento e a gestão territorial por parte do setor público e privado.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Gestão territorial; Zoneamento; Vocación de la tierras; Uso de la tierra; Reconocimiento de suelos; Ordenación de tierras; Zonificación.; Uso da terra; Reconhecimento do solo; Aptidão agrícola; Land management; Zoning; Land use; Soil surveys; Land suitability.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1090574

Sistemas agroflorestais: manejando a biodiversidade e compondo a paisagem rural: palestras.
Provedor de dados: 14
Autores: CONGRESSO BRASILEIRO DE SISTEMAS AGROFLORESTAIS, 3., 2000, Manaus.
Sistemas agroflorestais: manejando a biodiversidade e compondo a paisagem rural. Biodiversidade e processos funcionais de sistemas agroflorestais. Applying agroecological concepts tothe development of ecologically pest management strategies. Biodiversidade e dinamica em sistemas agroflorestais. Diversificacao de manejo em sistemas agroflorestais. Certificacao socioambiental de sistemas agroflorestais. Valoracao de servicos ambientais em sistemas agroflorestais: metodos, problemas e perspectivas. Reservas de carbono y emision de gases en diferentes sistemas de uso de la tierra en dos sitios de la Amazonia Peruana. A Amazonia, o Amazonas e o mecanismo de desenvolvimento limpo (MDL) do protocolo de Quioto.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Environments; Agroflorestry; Sustainability.; Agrossilvicultura; Agricultura; Biodiversidade; Desenvolvimento Sustentável; Manejo; Meio Ambiente; Recurso Hídrico; Recurso Natural; Uso da Terra.; Agriculture; Crop management; Biodiversity; Land use; Natural resources; Water resources.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/671160

Zoneamento agroecológico das terras do município de Uruará, Estado do Pará.
Provedor de dados: 14
Autores: REGO, R. S.; ROLLIN, P. A. M.; RODRIGUES, T. E.; CARVALHO, E. J. M.; GAMA, J. R. N. F.; SILVA, J. M. L. da; PERES, A. S. G.; PEREIRA, I. C. B.
Descrição geral da área. Metodologia. Suscetibilidade a erosão das terras. Níveis de possibilidades a mecanização das terras. Legenda de identificação, área e percentagem das classes de aptidão agroecológicas. Culturas indicadas para as principais classes de aptidão agroecológica. Recomendações gerais.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Uruará; Pará; Brasil; Agroclimatic zone; Environments.; Aptidão Agrícola; Ecossistema; Sensoriamento Remoto; Reconhecimento do Solo; Uso da Terra; Zoneamento Agrícola; Zoneamento Ecológico.; Amazonia; Ecosystems; Land use; Land suitability; Remote sensing; Soil surveys.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/388114

Identificação de padrões de uso agrícola em imagens orbitais aplicando Geobia e mineração de dados.
Provedor de dados: 14
Autores: ANDRADE, C. C. de; FIDALGO, E. C. C.; FRANCISCO, C. N.
Este trabalho foi desenvolvido com o objetivo de mapear o uso e cobertura da terra na região de Nova Canaã, Mato Grosso, MT, visando identificar padrões para o reconhecimento de sistemas de produção existentes nas áreas agropecuárias. Para tal, foi utilizada a série temporal do período entre 2017 e 2018 das imagens do sensor Sentinel-2, com resolução espacial de 10 metros. Foram empregadas técnicas de análise baseada em objetos e mineração de dados, devido à grande quantidade de dados a serem processados e analisados. Como resultado, foi possível diferenciar as classes de uso e cobertura da terra: agricultura (dois diferentes padrões), pastagem, vegetação natural e água, com exatidão global de mapeamento de 73,5% e estatística Kappa de 0,62. A metodologia...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Análise de imagem baseada em objetos; Sentinel-2; Sensoriamento Remoto; Uso da Terra; Sistema de Produção; Remote sensing; Land use.
Ano: 2020
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1123475

Potencial pedoclimático do Estado de Alagoas para a cultura da mamona (Ricinus communis L.).
Provedor de dados: 14
Autores: BARROS, A. H. C.; OLIVEIRA NETO, M. B. de; MARQUES, F. A.; SILVA, A. B. da; AMARAL, A. J. do; GOMES, E. C.; ARAUJO FILHO, J. C. de; SANTOS, J. C. P. dos; SILVEIRA, H. L. F. da; SILVA, D. F. da.
O potencial pedoclimático de ambientes para culturas agrícolas depende da natureza dos solos, da sua relação com a paisagem, do clima e das exigências das culturas. O objetivo deste estudo foi avaliar o potencial pedoclimático do Estado de Alagoas para a cultura da mamona (Ricinus communis L.). Na obtenção do potencial pedoclimático, as informações relacionadas com o potencial dos solos foram obtidas considerando dois níveis tecnológicos para o manejo das terras e das culturas (média tecnologia ou Manejo B e alta tecnologia ou Manejo C). No que se refere à aptidão climática as informações foram obtidas considerando três cenários pluviométricos: anos chuvosos, anos regulares e anos secos. O cruzamento das informações foi realizado por meio de técnicas de...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Zoneamento climático; Zoneamento agrícola; Aptidão climática; Mamona; Produção vegetal; Zoning; Climate; Castor beans; Planning; Land use.
Ano: 2015
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1010115

Zoneamento pedoclimático para a seringueira e o café no município de Capixaba.
Provedor de dados: 14
Autores: AMARAL, E. F. do; BARDALES, N. G.; PEREIRA, J. B. M.; GONÇALVES, R. C.; BERGO, C. L.; ARAÚJO, E. A. de; AMARAL, E. F. de; MELO, A. W. F. de.
A importância da cultura da seringueira está na produção do látex, que constitui uma commodity mundial valorizada pelos seus múltiplos usos. Em anos recentes observa-se uma retomada da cafeicultura no estado do Acre, com ampliação das áreas cultivadas e ênfase no plantio de variedades clonais. Em função de uma ação integrada do Ministério da Agricultura, Pecuária e Abastecimento e a Embrapa Acre, foi elaborado o zoneamento pedoclimático da cultura da seringueira e do café Canéfora para as áreas desmatadas de Capixaba. Com base nos atributos de solo (morfológicos, físicos e químicos) e clima (precipitação, temperatura e déficit hídrico) integrados com as áreas desmatadas, fez-se a avaliação da aptidão pedológica e climática em escala de 1:250.000 nos três...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Zoneamento pedoclimático; Arbol de goma; Rubber tree; Zonificación; Uso de la tierra; Zonas climáticas; Capixaba (AC); Acre; Amazônia Ocidental; Western Amazon; Amazonia Occidental; Seringueira; Hevea; Café; Coffea Canephora; Zoneamento Climático; Reconhecimento do Solo; Zoning; Land use; Climatic zones.
Ano: 2019
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1112991

Quantificação do uso e adequacao das terras na microbacia do Corrego Lamarão, DF
Provedor de dados: 14
Autores: MOREIRA, L.; ASSAD, E. D.
Com a intensificacao do uso dos recursos naturais na regiao do Cerrado brasileiro, particularmente dos solos e dos recursos hidricos, ampliaram-se os riscos de degradacao ambiental, principalmente onde a capacidade de uso desses recursos nao vem sendo respeitada. Este trabalho teve como objetivos principais avaliar as mudancas ocorridas no uso e na ocupacao dos solos da microbacia do corrego Lamarao (DF), ao longo de 33 anos e comparar o uso e a ocupacao dos solos da microbacia com as adequacoes agricolas indicadas pelo mapa de aptidao agricola. Os materiais basicos deste estudo foram: o mapa de solos e de aptidao agricola da microbacia, fotografias aereas de 1964, 1975 e as imagens de satelite TM Landsat, de 1987 e 1997. Essas imagens TM foram...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Corrego Lamarão; Distrito Federal; Brasil.; Aptidão Agrícola; Cerrado; Microbacia; Uso da Terra.; Brazil; Land suitability; Land use; Watersheds.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/563955

Reconhecimento de áreas potencialmente críticas na região do Alto Taguari e Coxin (MS): subsídios à caracterização dos impactos decorrentes das atividades agrícolas.
Provedor de dados: 14
Autores: GOMES, M. A. F.; CERDEIRA, A. L.; FILIZOLA, H. F.
Áreas visitadas/reconhecidas; Localização; Conclusões preliminares.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Impacto Ambiental; Uso da Terra; Rio; Environmental impact; Land use; Rivers.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1118950

Zoneamento pedoclimático da área de influência do canal das vertentes litorâneas da Paraíba: potencial de terras para irrigação.
Provedor de dados: 14
Autores: ARAUJO FILHO, J. C. de; MARQUES, F. A.; SANTOS, J. C. P. dos; PARAHYBA, R. da B. V.; AMARAL, A. J. do; OLIVEIRA NETO, M. B. de; SILVA NETO, L. de F. da.
A área de influência do canal das vertentes litorâneas da Paraíba (Canal Acauã-Araçagi) possui uma extensão de 5.144 km2, e a maior parte dessa área está inserida nos domínios do Semiárido. O objetivo deste estudo foi avaliar o potencial de terras para irrigação da referida área por meio de uma metodologia desenvolvida neste trabalho. Para estabelecer as classes de terra para irrigação, foi utilizado o Sistema Brasileiro de Classificação de Terras para Irrigação (SiBCTI) com o apoio de um levantamento de solos na escala 1:50.000. O potencial de terras para irrigação foi obtido por meio de regras inéditas de decisão levando em conta as proporções das diferentes classes de terra nas unidades de mapeamento de solos. Foram avaliados o potencial geral de terras...
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Agricultura Irrigada; Semiárido; Paraíba; Irrigated agriculture; Zoneamento Agrícola; Irrigação; Uso da Terra; Reconhecimento do Solo; Zoning; Irrigation; Land use; Soil surveys; Semiarid zones.
Ano: 2021
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1132908

Recuperacao de areas degradadas e abandonadas, atraves de sistemas de policultivo.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 23 (Manaus-AM).
O relatorio anual de 1998 e' apresentado de forma detalhada. Os resultados compreendem as atividades relacionadas ao projeto ENV. 23/2. Alem desse projeto, na mesma area experimental, estao sendo desenvolvidos os projetos ENV. 42, ENV. 45 e ENV. 52. cujos resultados serao apresentados em relatorios proprios. No periodo, as principais atividades de pesquisa desenvolvidas no projeto ENV.23 foram: estudos de fitopatologia - avaliacoes continuas sobre reincidencia de doencas nas plantas, assim como a adocao de medidas de controle, quando necessarias; Estudos sobre vegetacao - avaliacao dos tipos de vegetacao envolvendo a caracterizacao, o desenvolvimento e a identificacao das especies em areas de capoeira e florestas primarias e secundarias; avaliacoes...
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Amazonas; Manaus; Reclamation; Árvore Frutífera; Cultivo Multiplo; Essência Florestal; Floresta Tropical Úmida; Recuperação do Solo; Uso da Terra; Agroforestry; Forest trees; Fruit trees; Land use; Multiple cropping; Tropical rain forests.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/668166

SiBCTI: Sistema Brasileiro de Classificação de Terras para Irrigação.
Provedor de dados: 14
Autores: AMARAL, F. C. S. do.
O Sistema Brasileiro de Classificação de Terras para Irrigação é uma metodologia que define a potencialidade do ambiente para desenvolver dada cultura sob determinado tipo de irrigação. Procura classificar as terras segundo a interação de vários planos de informação, de modo que o ambiente seja avaliado de forma integrada, maximizando o manejo da agricultura irrigada.
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: SiBCTI; Agricultura irrigada; Uso da terra; Irrigação; Irrigation.; Land use.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1090044

Oficina de preparação para avaliação participativa de impactos à sustentabilidade de políticas de expansão canavieira no sudoeste goiano: relatório executivo.
Provedor de dados: 14
Autores: COUTINHO, H. L. C.; CASTRO, S. S.; TURETTA, A. P. D.; MONTEIRO, J. M. G.; CORREIO, S. P. T.; PIETRAFESA, J. P.; VILELA, B. P.; CORREIO, E. N.; CORREIO, H. S. R.; NOGUEIRA, A. P.
Material e métodos. Área de estudo. Metodologia participativa. Oficina de consulta a especialistas. Palestras introdutórias. Resultados e discussão. Cenários de políticas públicas. Funções de uso da terra. Indicadores de impacto à sustentabilidade.
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Indicadores de impacto; Sustentabilidade; Uso da terra; Land use.
Ano: 2013
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/998284

Aspectos sobre a estrutura agrária na Amazônia: sugestões para a pesquisa agropecuária.
Provedor de dados: 14
Autores: HOMMA, A. K. O.; IANNUZZI, A. C. da S.; NEVES, A. F. da S.
bitstream/item/229049/1/Aspectos-sobre-a-estrutura-agraria.pdf
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Agropecuária; Aspecto economico; Brasil; Economic aspect; Agrarian structure; Estrutura Agrária; Pesquisa; Uso da Terra; Amazonia; Agriculture; Land use; Research.
Ano: 1996
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/374698

Áreas frágeis no Brasil: subsídios à legislação ambiental.
Provedor de dados: 14
Autores: GOMES, M. A. F.; PEREIRA, L. C.
Resumo: O presente trabalho traz uma abordagem sobre a conceituação de áreas frágeis, contextualizando-as e informando sobre os tipos, características e localização na paisagem, como uma forma de contribuir para o aperfeiçoamento e a evolução da legislação ambiental do país. Das oito categorias de áreas frágeis abordadas neste trabalho, seis delas encontram-se amparadas pela legislação, apesar de não serem devidamente respeitadas, seja por falta de consciência da sociedade seja pela falta de fiscalização adequada por parte dos órgãos responsáveis. As duas categorias restantes (áreas de recarga de aquíferos e arenização e desertificação), embora ainda não amparadas pela legislação vigente, merecem cuidados semelhantes às demais, não só pela magnitude de...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Código florestal; Uso da terra; Impacto ambiental; Ecossistema; Proteção ambiental; Preservação da natureza; Land use; Environmental protection.
Ano: 2011
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/908132

Solos para o cultivo do café canéfora no Acre.
Provedor de dados: 14
Autores: ARAÚJO, E. A. de; BARDALES, N. G.; AMARAL, E. F. do; LANI, J. L.; AMARAL, E. F. de.
O objetivo deste capítulo foi definir as áreas aptas ao cultivo intensivo do café Canéfora a partir dos dados geográficos do Zoneamento Ecológico-Econômico do Acre (escala de 1:250.000), ordenados por regionais do estado, em áreas desmatadas, a fim de auxiliar os gestores, extensionistas e técnicos que trabalham com essa cultura no estado.
Tipo: Capítulo em livro técnico (INFOTECA-E)
Palavras-chave: Western Amazon; Amazonia Occidental.; Amazônia Ocidental; Acre; Aptitud del suelo; Uso de la tierra; Café; Coffea Canephora; Aptidão Agrícola.; Uso da Terra; Cafeicultura; Soil suitability.; Land use.
Ano: 2018
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1092479

Aptidão agrícola das terras do Campo Experimental dos Cerrados da Embrapa Amapá, Estado do Amapá.
Provedor de dados: 14
Autores: OLIVEIRA JUNIOR, R. C. de; RODRIGUES, T. E.; VALENTE, M. A.
bitstream/item/57677/1/CPATU-Doc129.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Amapá; Brasil.; Aptidão Agrícola; Manejo do Solo; Reconhecimento do Solo; Uso da Terra.; Amazonia; Land use; Land suitability; Soil surveys.; Soil management.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376583

Inventário de emissões antrópicas e sumidouros de gases de efeito estufa do estado do Acre: ano-base 2012.
Provedor de dados: 14
Autores: COSTA, F. de S.; AMARAL, E. F. do.
O Acre é o primeiro estado da Amazônia a ter um Inventário de Gases de Efeito Estufa (GEE) e o quarto do Brasil a ter este instrumento, que aqui se transforma numa base de dados eficiente para monitorar e avaliar as fontes e sumidouros no estado. O inventário de GEE contabiliza de maneira precisa as emissões de carbono, constituindo-se um instrumento de trabalho para pesquisadores, estudantes, técnicos e tomadores de decisão envolvidos em ações de mitigação e adaptação às mudanças climáticas, a partir da implementação de programas, planos de ação ou projetos, de acordo com os princípios e critérios estabelecidos. O inventário está estruturado em dois capítulos. No primeiro capítulo são apresentadas as estimativas setoriais (energia ? termelétricas;...
Tipo: Livro técnico (INFOTECA-E)
Palavras-chave: Inventário de Gases de Efeito Estufa (GEE); Sumidouros de gases; Emissões antrópicas; Vehicles; Uso de la tierra; Western Amazon; Amazonia Occidental.; Cambio climático; Efecto invernadero; Gases de invernadero; Reservorios de carbono; Actividades antropogénicas; Estimación del riesgo; Desechos sólidos; Acre; Amazônia Ocidental; Mudança Climática; Efeito Estufa; Resíduo Solido.; Estoque; Estimativa; Eliminação de Resíduo; Uso da Terra; Energia Elétrica; Veiculo; Carbono; Climate change; Greenhouse effect; Greenhouse gases; Carbon sinks; Risk estimate; Anthropogenic activities; Electric power industry; Land use; Solid wastes.
Ano: 2014
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1008120

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45/2.
In this study, we present the effects of different fruit and timber tree species in a multistrata agroforestry system in comparison to secondary vegetation and primary forest sites on inorganic and organic P pools of a Ferralsol in the Amazon basin. The S pools were also assessed, but could not be presented here due to the length of this contribution.
Tipo: Outras publicações técnicas (INFOTECA-E)
Palavras-chave: Agrofloresta; Brasil; Tropical rain forest; Água; Floresta Tropical Úmida; Nutriente; Solo; Uso da Terra; Amazonia; Agroforestry; Land use; Nutrients; Soil; Water.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/666355

Avaliação da aptidão agrícola das terras do Campo Experimental de Ouro Preto d'Oeste - Rondônia.
Provedor de dados: 14
Autores: SILVA, J. M. L. da; SANTOS, P. L. dos; VALENTE, M. A.; CARDOSO JUNIOR, E. Q.
bitstream/item/61857/1/Oriental-Doc20.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Ouro Preto d'Oeste; Rondônia; Brasil.; Aptidão Agrícola; Reconhecimento do Solo; Uso da Terra.; Amazonia; Land suitability; Land use; Soil surveys.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/380563

Pesquisa participativa para melhoria do desempenho da agricultura migratória e/ou de baixa renda para Amazônia Ocidental.
Provedor de dados: 14
Autores: SOUSA, G. F. de; GUIMARÃES, R. dos R.; SOUSA, N. R.; NUNES, J. S.; LOURENÇO, J. N. de P.; NORMANDO, M. C.
Estudo sendo desenvolvido com o proposito de testar um modelo de pesquisa e desenvolvimento rural que possa ser aplicado aos pequenos produtores de uma area de colonizacao no ecossistema de terra fime da Amazonia ocidental, com o objetivo de melhorar o nivel tecnico e economico dos sistemas de uso da terra, contribuindo para a diversificacao da producao, garantia de alimentos para a familia, uso sustentavel do solo e, consequente, aumento da renda. Os resultados preliminares, com relacao ao sistemas de uso da terra implantados, sao bastantes promissores nao apenas pela aceitacao por parte dos produtores, mas tambem pela produtividade obtida, comparados aos sistemas tradicionais.
Tipo: Séries anteriores (INFOTECA-E)
Palavras-chave: Agricultura migratoria; Transferencia de teconologia; Brasil; Amazonas; Sustainability.; Desenvolvimento Sustentável; Pequeno Produtor; Uso da Terra.; Sistema de Produção; Land use; Technology transfer.; Small farms.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/666051

Aptidao agricola das terras da Bacia do Olaria, Distrito Federal.
Provedor de dados: 14
Autores: SPERA, S. T.; REATTO, A.; MARTINS, E. de S.; CORREIA, J. R.; BLOISE, G. de L. F.; SILVA, A. V. da; FARIAS, M. F. R.
bitstream/CPAC-2010/22719/1/bolpd-15.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: ECOSOL110; Bacia do Olaria; Distrito Federal; Brasil; Levantamento de solo; Plintossolo; Gleissolo; Plinthic soil; Savanna soil.; Aptidão Agrícola; Cambissolo; Cerrado; Fertilidade do Solo; Latossolo; Oxisol; Perfil do Solo; Reconhecimento do Solo; Textura do Solo; Uso da Terra.; Solo; Inceptisols; Land suitability; Land use; Soil surveys.
Ano: 2001
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/566072

Potencial de terras para irrigação em uma área de reassentamento de colonos na Bacia do Jatobá - PE.
Provedor de dados: 14
Autores: SILVA, F. H. B. B. da; ARAUJO FILHO, J. C. de; LUZ, L. R. Q. P. da; BOTELHO, F. P.
Este trabalho objetivou mapear terras consideradas aptas à irrigação em uma área destinada ao reassentamento de colonos do Projeto Barreiras-Chesf. As classes de terra foram estabelecidas com base nas informações geradas no mapeamento detalhado e nos estudos hidropedológicos dos solos da área do Projeto. Foram observados, ainda, dados de estudos realizados pela Chesf em solos similares no contexto regional.
Tipo: Comunicado Técnico (INFOTECA-E)
Palavras-chave: Mapeamento; Terras.; Mapa; Irrigação; Uso da terra; Land use; Irrigation.
Ano: 2006
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/1005482

Water and nutrient fluxes as indicators for the stability of different land use systems on the terra firme near Manaus.
Provedor de dados: 14
Autores: SHIFT PROJECT ENV 45/2.
The experiments started during the first year of the second phase of this project were continued, such as studies about the effect of trees on soil phosphorus and sulfur abailability, dissolved organic nutrients in rainfall, throughfall, stemflow and soil solution. Additionally, we focussed on the effects of cover crops on tree nutrition, soil nutrient and water dynamics. Soil nitrogen and phosphorus uptake was investigated using different N-15 and P-32 tracer experiments. The fate of fertilizer nitrogen was studied with N-15 labelled ammoniumsulfate in plant, soil, soil extracts and soil solution. In laboratory incubations, the effect of leaf quality on decomposition and incorporation of nutrients into soil organic matter was studied as affected by soil...
Tipo: Fôlder / Folheto / Cartilha (INFOTECA-E)
Palavras-chave: Brasil; Amazonas; Manaus; Tropical rain forest; Água; Floresta Tropical Úmida; Nutriente; Solo; Uso da Terra; Land use; Nutrients; Soil; Tropical rain forests; Water.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/669428

Levantamento da vegetação e do uso da terra em áreas de remanescentes de quilombos na bacia do rio Trombetas, PA.
Provedor de dados: 14
Autores: WATRIN, O. dos S.; VENTURIERI, A.; VALENTE, M. A.
bitstream/item/61197/1/CPATU-Doc126.pdf
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Aspecto socioeconomico; Bacia do rio Trombetas; Pará; Brasil; Economic situation.; Levantamento; Recurso Natural; Sensoriamento Remoto; Uso da Terra; Vegetação.; Amazonia; Land use; Natural resources; Remote sensing; Surveys; Vegetation.
Ano: 1998
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/376587

Zoneamento agroecológico do município de Monte Alegre, Estado do Pará.
Provedor de dados: 14
Autores: OLIVEIRA JUNIOR, R. C. de; RODRIGUES, T. E.; SANTOS, P. L. dos; VALENTE, M. A.
O presente trabalho foi realizado no município de Monte Alegre, Para, que possui uma área de 20.400Km e esta localizado na região noroeste do Estado do Para, mesorregião do Baixo Amazonas, Microrregião de Santarém, foi executado pela Embrapa Amazônia Oriental, em parceria com a Companhia de Pesquisa de Recursos Minerais-CPRM, Prefeitura Municipal de Monte Alegre e Secretaria Estadual de Agricultura, em cumprimento as metas do Programa de Integração Mineral em Municípios da Amazônia-PRIMAZ, coordenado pela CPRM. Para confecção dos mapas de solos e aptidão agrícola das terras, nas escalas 1:250.000, foram utilizadas imagens de satélite Landsat-5, na composição colorida 5R4G3B e, mosaicos semicontrolados de radar, adotando-se os procedimentos metodológicos...
Tipo: Documentos (INFOTECA-E)
Palavras-chave: Monte Alegre; Pará; Brasil; Agroclimatic zone.; Aptidão Agrícola; Clima; Reconhecimento do Solo; Uso da Terra; Zoneamento Agrícola.; Vegetação; Amazonia; Climate; Land suitability; Land use; Surveys; Soil; Vegetation.
Ano: 1999
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/391620

Segmentacao e classificacao supervisionada por regioes no uso e ocupacao da terra: microbacia do Corrego Lamarao, DF.
Provedor de dados: 14
Autores: MOREIRA, L.; ASSAD, E. D.
bitstream/item/114940/1/bolpd-16.pdf
Tipo: Boletim de Pesquisa e Desenvolvimento (INFOTECA-E)
Palavras-chave: Corrego Lamarao; Distrito Federal; Brasil.; Bacia Hidrográfica; Cerrado; Uso da Terra.; Brazil; Land use; Watersheds.
Ano: 2000
URL: http://www.infoteca.cnptia.embrapa.br/infoteca/handle/doc/564374

Geochemical methods to infer landscape response to Quaternary climate change and land use in depositional archives: A review
Provedor de dados: 5
Autores: Francke, Alexander; Holtvoeth, Jens; Codilean, Alexandru; Lacey, Jack H.; Bayon, Germain; Dosseto, Anthony.
Understanding and quantifying the processes and geochemical cycles associated with catchment erosion, the development of soils and weathering horizons, and terrestrial habitat change beyond the scales of modern observations remain challenging. Such research, however, has become increasingly important to help predict future landscape change in light of increasing land use and rapid global warming. We herein review organic and inorganic geochemical tools applied to depositional archives to better understand various aspects of landscape evolution on geological time scales. We highlight the potentials and limitations of inorganic geochemical analytical methods, such as major element geochemistry, metal and radiogenic isotopes, and in-situ cosmogenic nuclides,...
Tipo: Text
Palavras-chave: Quaternary landscape evolution; Catchment erosion; Terrestrial habitat change; Land use; Fluvial; Lacustrine; Inorganic geochemistry; Organic geochemistry; Radiogenic isotopes; Metal isotopes; Uranium isotopes; Cosmogenic nuclides.
Ano: 2020
URL: https://archimer.ifremer.fr/doc/00632/74383/74084.pdf

Fonctionnement des marais maritimes atlantiques: échanges d'énergie et effets des flux aquacoles diffus
Provedor de dados: 5
Autores: Bel Hassen, Malika.
French estuaries, from the Atlantic coast to the English channel, have been characterized by a poor phytoplankton biomass. The turbidity has always been considered as the limiting factor for phytoplankton. Estuarine ecosystems are situated at the boundary between the land and the sea. Consequently, they are subject to an enrichment by nutrient loadings from upland ecosystems. Although it has been demonstrated that a part of the nutrient loadings support an important benthic production. The part, which escapes to the estuarine benthic and planktonic food web and is exported to adjacent estuarine ecosystems, still remains undetermined. Quantifying the nu trient and particulate matter exchange between a macrotidal Bay, the Fier d'Ars, and the adjacent ocean...
Tipo: Text
Palavras-chave: Aquaculture; Exportation; Matière dissoute; Fiers d'Ars; Systèmes d'Information Géographique; Importation; Usages; Lumière; Micorphytobenthos; Modélisation; Nutriments; Matière organique; Matière particulaire; Phytoplancton; Sédimentation; Aquaculture; Export; Dissolved matter; Fier d'Ars Bay; Geographic Information Systems; Import; Land use; Light; Microphytobenthos; Modelling; Nutrients; Organic matter; Particulate matter; Phytoplankton; Sedimentation.
Ano: 2000
URL: http://archimer.ifremer.fr/doc/00450/56185/57738.pdf

Reducing marine eutrophication may require a paradigmatic change
Provedor de dados: 5
Autores: Desmit, X.; Thieu, V.; Billen, G.; Campuzano, F.; Duliere, V.; Garnier, J.; Lassaletta, L.; Menesguen, Alain; Neves, R.; Pinto, L.; Silvestre, M.; Sobrinho, J. L.; Lacroix, G.
Marine eutrophication in the North-East Atlantic (NEA) strongly relies on nutrient enrichment at the river outlets, which is linked to human activities and land use in the watersheds. The question is whether human society can reduce its nutrient emissions by changing land use without compromising food security. A new version of Riverstrahler model (pyNuts-Riverstrahler) was designed to estimate the point and diffuse nutrient emissions (N, P, Si) to the rivers depending on land use in the watersheds across a large domain (Western Europe agro-food systems, waste water treatment). The loads from the river model have been used as inputs to three marine ecological models (PCOMS, ECO-MARS3D, MIRO&amp;CO) covering together a large part of the NEA from the Iberian...
Tipo: Text
Palavras-chave: North-East Atlantic; Eutrophication; Model scenarios; Land-sea continuum; Land use; Pristine; Management support.
Ano: 2018
URL: http://archimer.ifremer.fr/doc/00438/55007/56426.pdf

Nutrient export to an Eastern Atlantic coastal zone: first modeling and nitrogen mass balance
Provedor de dados: 5
Autores: Canton, Mathieu; Anschutz, Pierre; Coynel, Alexandra; Polsenaere, Pierre; Auby, Isabelle; Poirier, Dominique.
We have studied 15 catchments supplying freshwater to a French Atlantic coastal lagoon, where increase in nitrogen loads due to agriculture is supposed to have destabilized the ecosystem in the last decades. The catchment is a lowland composed of Pleistocene sands with an average slope of 0.25%. To study the nutrient export in relation to land-use surface waters were sampled bi-weekly between October 2006 and January 2009 and land-use was established by plane photographs and Geographic Information System (GIS). Cultivated pine forests represent more than 80% of the total surface and 7% of the catchment area has been deforested recently. Significant areas of some catchments are used for maize crop. Housing is confined to the coastal zone. Maize and forest...
Tipo: Text
Palavras-chave: Nitrogen; Phosphorus; River export; Land use; Coastal catchment; Arcachon Bay; Modeling; Mass balance.
Ano: 2012
URL: http://archimer.ifremer.fr/doc/00065/17615/15173.pdf

Design and application of a stratified sampling strategy to study the regional distribution of cyanobacteria (Ile-de-France, France)
Provedor de dados: 5
Autores: Catherine, A; Troussellier, Marc; Bernard, C.
This study describes the design and application of a stratified sampling strategy of waterbodies to assess and analyze the distribution of cyanobacteria at a regional scale (Ile-de-France, IDF). Ten groups of hydrographical zones were defined within the IDF on the basis of their anthropogenic and geomorphologic characteristics. Sampling effort (n = 50) was then randomly allocated according to the number of waterbodies in each group. This sampling strategy was tested in August 2006, using a field probe to estimate total phyto-plankton as well as cyanobacteria biomasses. The sampled waterbodies exhibited a wide range of phytoplankton (&lt;1-375 mu g equiv.Chla L-1) and cyanobacteria biomasses (&lt;1-278 mu g equiv. Chla L-1). 72% of the waterbodies in the...
Tipo: Text
Palavras-chave: Sampling strategy; Land use; Lakes and reservoirs; Geographic information system; Cyanobacteria.
Ano: 2008
URL: http://archimer.ifremer.fr/doc/2008/publication-5302.pdf

Effects of deforestation on headwater stream fish assemblages in the Upper Xingu River Basin, Southeastern Amazonia
Provedor de dados: 83
Autores: Ilha,Paulo; Rosso,Sergio; Schiesari,Luis.
ABSTRACT The expansion of the Amazonian agricultural frontier represents the most extensive land cover change in the world, detrimentally affecting stream ecosystems which collectively harbor the greatest diversity of freshwater fish on the planet. Our goal was to test the hypotheses that deforestation affects the abundance, richness, and taxonomic structure of headwater stream fish assemblages in the Upper Xingu River Basin, in Southeastern Amazonia. Standardized sampling surveys in replicated first order streams demonstrated that deforestation strongly influences fish assemblage structure. Deforested stream reaches had twice the fish abundance than reference stream reaches in primary forests. These differences in assemblage structure were largely driven...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Arc of Deforestation; Canopy; Land use; Ichthyofauna; Vegetation cover.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252019000100201

Influence of environmental variables on stream fish fauna at multiple spatial scales
Provedor de dados: 83
Autores: Junqueira,Nara Tadini; Macedo,Diego Rodrigues; Souza,Rafael Couto Rosa de; Hughes,Robert Mason; Callisto,Marcos; Pompeu,Paulo Santos.
ABSTRACT Effects of environmental variables at different spatial scales on freshwater fish assemblages are relatively unexplored in Neotropical ecosystems. However, those influences are important for developing management strategies to conserve fish diversity and water resources. We evaluated the influences of site- (in-stream) and catchment-scale (land use and cover) environmental variables on the abundance and occurrence of fish species in streams of the Upper Araguari River basin through use of variance partitioning with partial CCA. We sampled 38 1st to 3rd order stream sites in September 2009. We quantified site variables to calculate 11 physical habitat metrics and mapped catchment land use/cover. Site and catchment variables explained &gt; 50% of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Disturbed sites; Fish assemblages; Land use; Partial CCA; Physical habitat.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1679-62252016000300202

Effects of land use and long-term organic matter application on low-molecular-weight organic acids in an Andisol
Provedor de dados: 19
Autores: Takata, Yusuke; Tani, Masayuki; Kato, Taku; Koike, Masanori; 谷, 昌幸; 加藤, 拓; 小池, 正徳.
http://www.academicjournals.org/jssem/abstracts/abstracts/abstracts2011/25%20October/Takata%20et%20al.htm
Palavras-chave: Land use; Long-term organic matter application; Low-molecular-weight organic acids; Malic acid; Water-extractable organic carbon.
Ano: 2011
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/3578

Soil organic matter management for tackling desertification
Provedor de dados: 19
Autores: Tsutsuki, Kiyoshi; 筒木, 潔.
2003年8月28日とかちプラザで開催､日本ユネスコ国内委員会主催の帯広農村開発教育国際セミナー(OASERD)国際連合ユネスコアジア太平洋地域教育開発計画事業(APEID)シンポジウム「地球にやさしい農業をめざして : 緑地回復と持続的農業」講演資料
Palavras-chave: Humic substances; Soil aggregate; Soil degradation; Soil organic matter; Land use.
Ano: 2003
URL: http://ir.obihiro.ac.jp/dspace/handle/10322/1906

The role of wetlands in lake ecological functions and sustainable livelihoods in lake environment: A case study on cross border Lake Jipe - Kenya/Tanzania
Provedor de dados: 20
Autores: Ndetei, Robert.
Wetlands are highly productive ecosystems. Their values and functions support other ecosystems and are significant to economic development. They once covered large areas of the world and are now among the rarest and most at-risk ecosystems. They are highly valued for their recreational, educational, scientific, aesthetic, spiritual and cultural values; and form an important component of lakes that provide critical functions influencing lake ecological functions. Despite the important roles in sustaining vibrant lake ecology, supporting economic development and elevating poverty, almost all wetlands in the world are threatened by diverse human induced factors. Lake Jipe striding across the Kenya-Tanzania international boundary is an important ecosystem to...
Tipo: Proceedings Paper
Palavras-chave: Ecosystem management; Wetlands; Land use; Man-induced effects; Economic benefits; Resource management; Policies; Environment management; Resource conservation; Inland waters; Water reservoirs; Freshwater lakes.
Ano: 2006
URL: http://hdl.handle.net/1834/1492

Land use and Coastal Management in the third Countries; Egypt as a case
Provedor de dados: 20
Autores: Hamza, W.
Although the aspects of both land use and coastal management represent part of the larger concept of sustainable development, the strength and interest with which these aspects are received varies considerably among countries. It is well known that land use planning can facilitate the allocation of land to those use(s) that provide the greatest sustainable benefits. However, in order to achieve a sustainable land use planning, an in-depth analysis of the existing resources is required (e.g. localization, features, sensitivity to development). Furthermore, the understanding of development characteristics (resource needs and collateral efforts), would make it possible to identify the use of natural resources. In that regard Sense and Toccolini (1998)...
Tipo: Working Paper
Palavras-chave: Coastal zone management; Land use.
Ano: 2003
URL: http://hdl.handle.net/1834/383

Land use in Kenya
Provedor de dados: 20
This book exposes the key land use and environmental problems facing Kenya today due to lack of an appropriate national land use policy. The publication details how the air is increasingly being polluted, the water systems are diminishing in quantity and deteriorating in quality. The desertification process threatens the land and its cover. The soils are being eroded leading to siltation of the ocean and lakes. The forests are being depleted with impunity thus destroying the water catchments. The savannas and grasslands are undergoing de-vegetation through overgrazing, charcoal burning and other poor land use practices leading to desertification. The book also reveals the underlying causes of the deterioration of the life support systems (air, water and...
Tipo: Book
Palavras-chave: Land use.
Ano: 2000
URL: http://hdl.handle.net/1834/713

Biodiversity and sustainable management of a tropical wetland lake ecosystem: A case study of Lake Kanyaboli, Kenya
Provedor de dados: 20
Autores: Rasowo, J.O.; Abila, R.; Manyala, J.
Lake Kanyaboli and the surrounding Yala swamp wetland has been recognized as an important biodiversity hotspot. Recent population genetic and phylogenetic studies confirm the evolutionary importance of Lake Kanyaboli (Kenya) in preserving the cichlid fish fauna of Lake Victoria. The adjoining Yala swamp harbours the endangered swamp antelope Sitatunga (Tragecephalus spekii) and several papyrus endemic birds. The lake and adjoining swamp play a critical role in the livelihood of the local communities who heavily depend on the wetland resources. Current ongoing large scale land use changes within the swamp threaten the ecological integrity and functioning of this highly dynamic wetland ecosystem. It is therefore imperative that proper management and...
Tipo: Proceedings Paper
Palavras-chave: Wetlands; Biodiversity; Resource conservation; Inland waters; Ecosystem management; Ecological crisis; Tropical environment; Population genetics; Phylogenetics; Lake fisheries; Freshwater fish; Aquatic birds; Land use.
Ano: 2006
URL: http://hdl.handle.net/1834/2126

The eastern Africa flamingo Lakes: Building partnerships for sustainable resource management
Provedor de dados: 20
Autores: Raini, Jackson A.
The saline alkaline lakes of the Eastern Africa Rift Valley 'Flamingo Lakes' support diverse biological resources that are of global, regional, national and local importance. These lakes form the center piece of some of the world renowned national parks and conservation areas and are major feeding, staging and displaying ground for the region's Lesser flamingo (Phoeniconaias minor), Greater flamingo (Phoenicopterus ruber) and for over 70 species of water birds. Unsustainable land use practices within the basins of these lakes during the last four decades have adversely affected the environment in many ways. Notable among the effects are the diminishing forested areas, rampant soil erosion, waste disposal problems and deterioration in catchment water...
Tipo: Proceedings Paper
Palavras-chave: Aquatic birds; Environment management; Man-induced effects; Saline water; Biodiversity; Land use; Inland waters; Soil erosion; Deforestation; Aquatic birds; Land use; Soil erosion; Saline water; Biodiversity; Inland waters; Deforestation; Http://aims.fao.org/aos/agrovoc/c_8898; Http://aims.fao.org/aos/agrovoc/c_4182; Http://aims.fao.org/aos/agrovoc/c_14393; Http://aims.fao.org/aos/agrovoc/c_16376; Http://aims.fao.org/aos/agrovoc/c_33949; Http://aims.fao.org/aos/agrovoc/c_3876; Http://aims.fao.org/aos/agrovoc/c_15590.
Ano: 2006
URL: http://hdl.handle.net/1834/3515

Degradation of the riparian wetlands in the Lake Victoria basin - Yala swamp case study
Provedor de dados: 20
Autores: Thenya, Thuita; Wassmann, Reiner; Verchot, Louis; Mungai, David.
Land degradation is as a result of broad range of scales and factors, which include biophysical, climatic, demographic and socio-economic. The aim of this paper was to provide an analysis of wetland utilisation, ecosystem degradation and their effect on the Lake Victoria (Kenya) ecosystem. This involved analysis of socioeconomic and remote sensed data. The main sources of wetland degradation in the Lake Victoria basin were identified as (1) farming activities, (2) grazing and macrophyte harvesting and (3) coupled with catchment degradation-deforestation. These factors were closely related to the demographic dynamics and unsustainable land utilisation practices. Socio-economic data provided valuable insight on the pattern of wetland utilisation and possible...
Tipo: Proceedings Paper
Palavras-chave: Riparian environments; Degradation; Wetlands; Inland waters; Catchment area; Remote sensing; Environmental effects; Socioeconomic aspects; Resource development; Sediment transport; Silting; Water pollution; Wetlands; Deforestation; Natural resources; Utilization; Land use; Pollutants.
Ano: 2006
URL: http://hdl.handle.net/1834/5313

Water quality trends and input loads to Lake Nakuru
Provedor de dados: 20
Autores: Kulecho, Andrew; Muhandiki, Victor.
Water quality trends of Lake Nakuru, Kenya and its feeder streams were monitored in 2001-2004. Water samples were obtained from eleven stations in the lake and five points on inflowing streams. The items monitored were physico-chemical and biological components. The drainage basin was characterized by recurrence of dry spells throughout the period with water losses in the lake exceeding the amount received to cause a fall in water volume. The lake water salts content rose – conductivity and alkalinity reached 58 ms/cm and 5,200 mg/l respectively. PH was more or less constant (10.00 – 10.36). Daytime oxygen concentration in the mid-lake system rose (to greater than 20 mg/l) while remaining low in the inflow portions of the lake. On one occasion, the lake...
Tipo: Proceedings Paper
Palavras-chave: Water quality; Biomass; Mortality causes; Anthropogenic factors; Phytoplankton; Pollution effects; Degradation; Man-induced effects; Inland waters; Freshwater pollution; Physicochemical properties; Inflow; Environmental monitoring; Land use; Urbanization; Environmental impact; Pollution; Freshwater.
Ano: 2006
URL: http://hdl.handle.net/1834/5312

Impact of agro-industrial activities on the water quality of River Nyando, Lake Victoria Basin, Kenya
Provedor de dados: 20
Autores: Raburu, P. O.; Okeyo-Owuor, J.B.
The impact of agro-industrial activities on the water quality within River Nyando, Lake Victoria Basin (Kenya) was studied at different hierarchical levels between August 1997 and June 1999. Triplicate water samples were collected on a monthly basis from various stations ranging from the source to the mouth of the river and analyzed for selected physical and chemical water quality parameters using standard analytical methods. Statistical analysis was performed using MINITAB and STATISTICA computer packages. Agricultural land use was found to be the major factor contributing to changes in water quality. Salinity and pH varied at river basin scale, turbidity, TDS and conductivity at catchment scale, while DO, alkalinity and pH at subcatchment and river reach...
Tipo: Proceedings Paper
Palavras-chave: Water quality; Environmental impact; Industrial wastes; Inland waters; Rivers; Anthropogenic factors; River basin management; Statistical analysis; Physicochemical properties; Land use; Limnological data; Environmental monitoring; Resource management; Environment management; Agricultural pollution; Water quality; Environmental impact; Rivers; Statistical analysis; Land use; Environmental monitoring; Industrial wastes; Inland waters; Anthropogenic factors; Physicochemical properties; Resource management; Http://aims.fao.org/aos/agrovoc/c_16061; Http://aims.fao.org/aos/agrovoc/c_24420; Http://aims.fao.org/aos/agrovoc/c_6617; Http://aims.fao.org/aos/agrovoc/c_7378; Http://aims.fao.org/aos/agrovoc/c_4182; Http://aims.fao.org/aos/agrovoc/c_37876; Http://aims.fao.org/aos/agrovoc/c_11763; Http://aims.fao.org/aos/agrovoc/c_3876; Http://aims.fao.org/aos/agrovoc/c_34996; Http://aims.fao.org/aos/agrovoc/c_13330; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2006
URL: http://hdl.handle.net/1834/3501

What is the socio-economic value of the wetlands fisheries? The case of Yala Wetland in Kenya
Provedor de dados: 20
Autores: Abila, R.O.; Othina, A.
Wetlands in most parts of the world are under threat of over-exploitation partly because their socio-economic value is not well known. Yala Wetland, the largest freshwater wetland in Kenya, with a large part of it bordering Lake Victoria’s shoreline, faces even greater threats of extinction. This wetland measures about 17,500 ha and is host to a number of indigenous fish species, animals and plants which are exploited by the local communities for subsistence and commercial purposes.There has been pressure to reclaim portions of this wetland for agricultural activity. So far, 2,300 ha has, indeed, been drained for commercial agriculture. Furthermore, it is difficult to control effort in the exploitation of the remaining wetland resources since the...
Tipo: Proceedings Paper
Palavras-chave: Wetlands; Inland waters; Overexploitation; Socioeconomic aspects; Fishery resources; Resource management; Water reservoirs; Monitoring systems; Land use; Resource conservation; Environment management; Protected resources; Freshwater lakes; Inland fisheries; Lake fisheries; Wetlands; Inland waters; Overexploitation; Http://aims.fao.org/aos/agrovoc/c_8371; Http://aims.fao.org/aos/agrovoc/c_3876; Http://aims.fao.org/aos/agrovoc/c_28014.
Ano: 2006
URL: http://hdl.handle.net/1834/1493

Incentives affecting biodiversity conservation and sustainable use: the case of land use options in Namibia
Provedor de dados: 20
Autores: Ashley, C.
Namibia is the most arid country south of the Sahara, with an economy fundamentally reliant on natural resources. The most scarce resource is water, and the main economic sectors are mining, fishing, agriculture, and wildlife-based tourism. The majority of the population live in rural areas, dependent on a wide range of natural resources. Sustainable use and conservation of biodiversity are therefore essential for the future. The question is how to achieve it? One key strategy is to assess -- and where necessary redesign -- economic incentives affecting use of natural resources. This paper illustrates the role of economic incentives in influencing the use of land-based renewable natural resources (RNR). It identify incentives which are being, or need to...
Tipo: Other
Palavras-chave: Land use; Biodiversity; Conservation.
Ano: 1996
URL: http://hdl.handle.net/1834/537

Effects of land use changes on bird composition along River Njoro: A watershed of Lake Nakuru
Provedor de dados: 20
Autores: Shivoga, W.A.; Ngugi, F.M.; Muchiri, M.S.; Miller, S.N.
The rift valley lakes and their associated watersheds are home for millions of resident and migratory waterfowl. However, they have been recently challenged by land use changes. Lake Nakuru (Kenya) supports diverse biological resources of global, regional and national importance. It is saline and River Njoro is its main source of freshwater. Deforestation, cultivation and urbanization in vital watershed areas have altered the hydrological regime of River Njoro. There is need to preserve and restore aquatic, riparian and terrestrial biological diversity in the watershed to be able to restore and maintain ecological health of Lake Nakuru. The impact of these recent land use changes on birds in the River Njoro Watershed is of concern to conservationists. This...
Tipo: Proceedings Paper
Palavras-chave: Land use; Aquatic birds; Urbanization; Resource conservation; Resource management; Migratory species; Environment management; Protected resources; Watersheds; Lake basins; Inland waters; Environmental effects; Species diversity; Riparian environments; Aquatic birds; Urbanization; Resource conservation; Resource management; Http://aims.fao.org/aos/agrovoc/c_8898; Http://aims.fao.org/aos/agrovoc/c_8088; Http://aims.fao.org/aos/agrovoc/c_6523; Http://aims.fao.org/aos/agrovoc/c_6524.
Ano: 2006
URL: http://hdl.handle.net/1834/1499

Carbon sink potential of multistrata agroforestry systems at Atlantic Rain Forest
Provedor de dados: 190
Autores: Froufe, Luís Cláudio Maranhão; Rachwal, Marcos Fernando Gluck; Seoane, Carlos Eduardo Sicoli.
Carbon storage of agroforestry systems, regenerated areas, conventional agriculture and pasture was evaluated at Alto Ribeira Valley region, São Paulo State, Brazil, in different compartments of Land-use systems (LUS). In soil, classified as Entisols and Inceptisols, we found similarities among all LUS, dued to their low contents of organic carbon, and similar values of bulk density. The total carbon stocked on land-use systems, greater amounts were determined on regenerated areas (115.78 Mg ha-1), followed by agroforestry systems (75.38 Mg ha-1), agriculture (47.07 Mg ha-1), and pasture (36.01 Mg ha-1). Despite their conservative characteristic, the silvicultural practices of multistrata agroforestry systems have to be improved for forest production and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Conservação dos recursos naturais; Floresta Ombrófila Densa; Estoque de carbono; SAF; Sistemas de uso do solo Agroforestry systems; Atlantic Rain Forest; Carbon sink; Land use; Natural resource conservation.
Ano: 2011
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/180

Sistemas Agroflorestais no Brasil: Uma abordagem sobre a estocagem de carbono.
Provedor de dados: 190
Autores: Torres, Carlos Moreira Miquelino Eleto; Gonçalves Jacovine, Laércio Antônio; Oliveira Neto, Silvio Nolasco de; Brianezi, Daniel; Alves, Eliana Boaventura Bernardes Moura.
Os sistemas agroflorestais são ferramentas integrantes das políticas públicas brasileira para mudanças climáticas, que visam à mitigação das emissões desses gases. Dada a importância destas ferramentas na estocagem de carbono na superfície terrestre e sua contribuição na minimização das mudanças climáticas é preciso avaliar o seu potencial de estocagem de carbono, de forma a balizar políticas públicas de incentivo às atividades. Neste sentido, objetivou-se levantar os dados de pesquisa disponíveis que demonstrem a estocagem de carbono de diferentes modelos de sistemas agroflorestais. As pesquisas indicam que há uma grande variação no incremento médio em carbono nos sistemas, variando de 1,26 a 11,19 t C ha-1 ano-1, dependendo da sua estrutura. Assim,...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Recursos Florestais; Engenharia Florestal; SAF Sequestro de carbono  SAF  Sistemas de uso do solo Carbon sequestration; Crop-livestock-forest integration; Land use.
Ano: 2014
URL: http://pfb.cnpf.embrapa.br/pfb/index.php/pfb/article/view/633

Microbial communities in Cerrado soils under native vegetation subjected to prescribed fire and under pasture
Provedor de dados: 86
Autores: Viana,Laura Tillmann; Bustamante,Mercedes Maria da Cunha; Molina,Marirosa; Pinto,Alexandre de Siqueira; Kisselle,Keith; Zepp,Richard; Burke,Roger A.
The objective of this work was to evaluate the effects of fire regimes and vegetation cover on the structure and dynamics of soil microbial communities, through phospholipid fatty acid (PLFA) analysis. Comparisons were made between native areas with different woody covers ("cerrado stricto sensu" and "campo sujo"), under different fire regimes, and a 20-year-old active palisadegrass pasture in the Central Plateau of Brazil. Microbial biomass was higher in the native plots than in the pasture, and the highest monthly values were observed during the rainy season in the native plots. No significant differences were observed between fire regimes or between communities from the two native vegetation types. However, the principal component (PC) analysis...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land use; Microbial diversity; PLFA; Savannas; Seasonality.
Ano: 2011
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2011001200012

Effects of plant population and nitrogen fertilizer on yield and efficiency of maize-bean intercropping
Provedor de dados: 86
Autores: Morgado,Luiz Balbino; Willey,Robert William.
Nitrogen supply and plant population are basic parameters for cereal-legume intercropping. In order to study plant population and nitrogen fertilizer effects on yield and yield efficiency of maize-bean intercropping, a field experiment was established. Three bean plant populations and three nitrogen levels were used. Maize dry matter accumulation decreased with increases in bean plant population. Competitive effect of intercrop beans on maize yields was high at higher plant populations, being decreased by nitrogen fertilizer; application of 50 kg ha-1 N was very efficient in increasing maize cob yield. Intercropping significantly decreased harvest index of beans in all plant population and nitrogen fertilizer situations. The efficiency of intercropping,...
Tipo: Info:eu-repo/semantics/report
Palavras-chave: Zea mays; Phaseolus vulgaris; Mixed cropping; Land use.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2003001100002

Radarsat backscattering from an agricultural scene
Provedor de dados: 86
Autores: Formaggio,Antonio Roberto; Epiphanio,José Carlos Neves; Simões,Maurício dos Santos.
Orbital remote sensing in the microwave electromagnetic region has been presented as an important tool for agriculture monitoring. The satellite systems in operation have almost all-weather capability and high spatial resolution, which are features appropriated for agriculture. However, for full exploration of these data, an understanding of the relationships between the characteristics of each system and agricultural targets is necessary. This paper describes the behavior of backscattering coefficient (sigma°) derived from calibrated data of Radarsat images from an agricultural area. It is shown that in a dispersion diagram of sigma° there are three main regions in which most of the fields can be classified. The first one is characterized by low...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Remote sensing; Radar; Land use; Farmland.
Ano: 2001
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2001000500013

Policies, legislation and organizations related to water in South Africa, with special reference to the Olifants River Basin.
Provedor de dados: 31
Autores: Thompson,   Hubert; Stimie,   Chris M.; Richters,   E.; Perret,   Sylvain R.
Tipo: Working or Discussion Paper
Palavras-chave: Water resource management; River basins; Water use; Organizations; Institutions; Mapping; Government; Political aspects; Ethnology; Social status; Water policy; Water law; Land tenure; Water supply; Sanitation; Water users; Land use; Conflict; Private sector; Non-governmental organizations; Local government; Water users' associations; Catchment areas; Monitoring; Community/Rural/Urban Development; Institutional and Behavioral Economics; Land Economics/Use; Political Economy; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/92770

Modeling environmental risk and land management trade-offs in the Great Barrier Reef catchment
Provedor de dados: 31
Autores: Mallawaarachchi,   Thilak; Mazur,   Kasia; Lawson,   Kenton.
We develop a catchment scale modeling framework to identify cost-effective strategies for joint onsite abatement and offsite mitigation of land-based pollution from agricultural activities that pose a risk to water quality in the Great Barrier Reef (GBR). An illustrative example of the Barron catchment in north Queensland is used to demonstrate an approach to specify social planner’'s problem for non-point source pollution management as a cost minimisation model to meet a specified reduction in land-based pollution emissions at the receiving waters of GBR. We focus on the tradeoffs between onsite pollution control and offsite pollution mitigation under a collective contract for nutrient reduction at a sub-catchment level and discuss implementation options.
Tipo: Conference Paper or Presentation
Palavras-chave: Non-point source pollution; Water quality; Land use; Cost-effectiveness; Coastal zone management; Environmental Economics and Policy; Land Economics/Use.
Ano: 2007
URL: http://purl.umn.edu/10377

The Economic Potential of Second-Generation Biofuels: Implications for Social Welfare, Land Use and Greenhouse Gas Emissions in Illinois
Provedor de dados: 31
Autores: Chen,   Xiaoguang; Khanna,   Madhu; Onal,   Hayri.
This paper develops a dynamic micro-economic land use model that maximizes social welfare and internalizes externality from greenhouse gas emissions to obtain the optimal land use allocation for traditional row crops and bioenergy crops (corn stover, miscanthus and switchgrass), the mix of cellulosic feedstocks and fuel and food prices. We use this carbon tax policy as a benchmark to compare the implications of existing biofuel policies on land use, social welfare and the environment for the 2007-2022 period. The model is operationalized using yields of perennial grasses obtained from a biophysical model, county level data on yields of traditional row crops and production costs for row crops and bioenergy crops in Illinois. We show that a carbon tax policy...
Tipo: Working or Discussion Paper
Palavras-chave: Cellulosic ethanol; Land use; Social welfare; Greenhouse gas emissions; Land Economics/Use; Resource /Energy Economics and Policy; Q42; Q24.
Ano: 2009
URL: http://purl.umn.edu/49484

Land Use Change and Ecosystem Valuation in North Georgia
Provedor de dados: 31
Autores: Ngugi,   Daniel; Mullen,   Jeffrey D.; Bergstrom,   John C.
This study seeks to forecast land use change in a North Georgia ecosystem, and estimate the economic value of the ecosystem using benefit transfer techniques. We forecast land use change based on a structural time series model and a simple growth rate model.  The study suggests a lower bound willingness to pay value of about USD 16,000 per year to ensure compliance with fishing and drinking water quality standards with regard to fecal coliform bacteria and dissolved oxygen. Conservation efforts are likely to cost less than the cost of defensive behavior or ecosystem restoration.
Tipo: Conference Paper or Presentation
Palavras-chave: Ecosystem; Economic value; North Georgia; Land use; Water quality; Structural time series; Benefit transfer; Forecasting.; Environmental Economics and Policy; Land Economics/Use; Q51; Q53; Q57.
Ano: 2009
URL: http://purl.umn.edu/46853

Determinants of land use change: evidence from a community study in Honduras
Provedor de dados: 31
Autores: Bergeron,   Gilles; Pender,   John L.
This study investigates the micro-determinants of land use change using community, household and plot histories, an ethnographic method that constructs panel data from systematic oral recalls. A 20-year historical timeline (1975-1995) is constructed for the village of La Lima in central Honduras, based on a random sample of 97 plots. Changes in land use are examined using transition analysis and multinomial logit analysis. Transition analysis shows that land use transitions were relatively infrequent in areas under extensive cultivation, but more so in areas of intensive cultivation; and that most changes favored intensification. Econometric analysis suggests that land use intensification was influenced by plot level variables (especially altitude, slope,...
Tipo: Working or Discussion Paper
Palavras-chave: Honduras; Land use; Econometrics--Case studies; Horticultural products; Land management; Land Economics/Use.
Ano: 1999
URL: http://purl.umn.edu/97464

Landowner response to policies regulating land improvements: lease or search for other options?
Provedor de dados: 31
Autores: Eija,   Pouta; Sami,   Myyra; Kyosti,   Pietola.
Land improvements with long pay-back periods are often delayed on leased agricultural land, resulting in social costs through land degradation, decreased land productivity and environmental problems. An important question is thus how landowners would respond to regulations and mandates concerning land improvements. Based on a landowner survey, we analyse landowner choices under certain land improvement regulations, using the currently dominant choice of leasing land for agricultural use as the benchmark. The results indicated that land leasing will continue to increase in the future, but if the landowner mandate to co-finance costly land improvements is increased, landowners are predicted to respond significantly to these mandates and search for other land...
Tipo: Conference Paper or Presentation
Palavras-chave: Contingent behaviour; Latent class model; Landlord; Land use; Heterogeneity; Land Economics/Use; Q15; Q24; Q28.
Ano: 2011
URL: http://purl.umn.edu/114770

Különbözõ ökonómiai méretû gazdasági szervezetek mûködésének jellemzõi a Nyugat-Dunántúlon
Provedor de dados: 31
Autores: Hegyi,   Judit; Kacz,   Karoly; Kettinger,   Anita.
In the course of a survey we’ve researched private farms of the West-Transdanubian Region in terms of their land area, economic farm size, land use and types of their enterprise. The research of agricultural enterprises from these points of view was the further share of our work. 371 pieces of questionnaire were sent farms of enterprises (joint-stock company, ltd., deposit company, co-operative) in Gyôr-Moson-Sopron, Vas and Zala counties, from which 72 assessable documents returned. The questionnaire asked the farmers the type of their farming (according to the rate of Standard Gross Margin), their economic farm size and data of land property and land use (in the year of 2002, 2004 and 2006). It also enquired about the claim to change of land size, the...
Tipo: Journal Article
Palavras-chave: Agricultural enterprises; Questionnaire; Economic farm size; Land use; Conceptions of future expansion; Farm Management; Land Economics/Use.
Ano: 2008
URL: http://purl.umn.edu/53970

Conjunctive water management in the Rechna Doab: An overview of resources and issues
Provedor de dados: 31
Autores: Jehangir,   Waqar Ahmed; Qureshi,   Asad Sarwar; Ali,   Nazim.
Tipo: Working or Discussion Paper
Palavras-chave: Water management; Conjunctive use; Surface water; Groundwater; Aquifers; Pumping; Water quality; River basins; Productivity; Canals; Waterlogging; Salinity; Land resources; Land use; Crop production; Rice; Wheat; Cotton; Sugarcane; Crop Production/Industries; Land Economics/Use; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2002
URL: http://purl.umn.edu/92704

South Dakota Agricultural Land Market Trends 1991-2012
Provedor de dados: 31
Autores: Janssen,   Larry; Pflueger,   Burton.
Agricultural land values and cash rental rates in South Dakota, by region and by state, are the primary topics of this report. The target audiences for this report are farmers and ranchers, landowners, agricultural professionals (lenders, rural appraisers, professional farm managers), and policy makers interested in agricultural land market trends. This report contains the results of the 2012 SDSU South Dakota Farm Real Estate Market Survey, the 22nd annual SDSU survey developed to estimate agricultural land values and cash rental rates by land use in different regions of South Dakota.
Tipo: Technical Report
Palavras-chave: Ag land; Farmland; Acreage; Cropland; Land ownership; Land use; Land tenure; Ranchland; Rental rates; Cash rent; Land values; Agricultural Finance; Farm Management; Land Economics/Use; Q15.
Ano: 2012
URL: http://purl.umn.edu/123843

Integrated management of water, forest and land resources in Nepal: Opportunities for improved livelihood
Provedor de dados: 31
Autores: Pant,   Dhruba; Thapa,   Sabita; Singh,   Ashok; Bhattarai,   Madhusudan; Molden,   David J.
Tipo: Working or Discussion Paper
Palavras-chave: Irrigation management; Forest management; Public policy; Land use; Land tenure; Farm size; Environmental effects; Gender; Women; Equity; Institutions; Conflict; Environmental Economics and Policy; Farm Management; Institutional and Behavioral Economics; Land Economics/Use; Public Economics.
Ano: 2005
URL: http://purl.umn.edu/92405

The Trade-off between Bioenergy and Emissions When Land Is Scarce
Provedor de dados: 31
Autores: Kauffman,   Nathan S.; Hayes,   Dermot J.
Agricultural biofuels require the use of scarce land, and this land has opportunity cost. We explore the objective function of a social planner who includes a land constraint in the optimization decision to minimize environmental cost. The results show that emissions should be measured on a per acre basis. Conventional agricultural life cycle assessments for biofuels report carbon emissions on a per gallon basis, thereby ignoring the implications of land scarcity and implicitly assuming an infinite supply of the inputs needed for production. Switchgrass and corn are then modeled as competing alternatives to show how the inclusion of a land constraint can influence life cycle rankings and alter policy conclusions.
Tipo: Working or Discussion Paper
Palavras-chave: Biofuels; Biomass; Energy policy; Land use; Life cycle analysis.; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/98626

Potential links between rural tourism and agriculture in the Northern Great Plain Region
Provedor de dados: 31
Autores: Szabo,   Bernadett; Posta,   Laszlo.
Agriculture has played and still plays a significant role in the life of rural communities and in rural development. But, because agriculture yields low revenues, agricultural workers often need a source of additional income. Agriculture combines excellently with the growing of medicinal herbs, organic farming, handicrafts and tourism. Rural tourism, as originally conceived, is a source of revenue to supplement income from agriculture. In Hungary, however, the ties between these two activities are very weak. Our current research is focused on assessing the willingness of land owners and agricultural entrepreneurs in the Northern Great Plain region to engage in rural tourism, as well as the willingness of rural hosts to start agricultural activities....
Tipo: Journal Article
Palavras-chave: Rural tourism; Agriculture; Land ownership; Land use; Expected profit; Falusi vendéglátás; Mezőgazdaság; Földtulajdonlás; Földhasználat; Elvárható jövedelem; Agribusiness; Community/Rural/Urban Development.
Ano: 2009
URL: http://purl.umn.edu/92541

Water and land in South Africa : economywide impacts of reform -- a case study for the Olifants river
Provedor de dados: 31
Autores: Mukherjee,   Natasha.
"July 1996." Includes bibliographical references (p. 37-41).
Tipo: Working or Discussion Paper
Palavras-chave: Equilibrium (Economics) -- Models; Computable general equilibrium (CGE); South Africa; Watershed management; Land use; Water; Resource /Energy Economics and Policy.
Ano: 1996
URL: http://purl.umn.edu/97763

Watching Corn Grow: A Hedonic Study of the Iowa Landscape
Provedor de dados: 31
Autores: Secchi,   Silvia.
Landscape amenities can be scarce in places with large areas of open space. Intensely farmed areas with high levels of monocropping and livestock production are akin to developed open space areas and do not provide many services in terms of landscape amenities. Open space in the form of farmland is plentiful, but parks and their services are in short supply. This issue is of particular importance for public policy because it is closely linked to the impact of externalities caused by agricultural activities and to the indirect effects of land use dynamics. This study looks at the impact of landscape amenities on rural residential property values in five counties in North Central Iowa using a hedonic pricing model based on geographic information systems. The...
Tipo: Working or Discussion Paper
Palavras-chave: Environmental management; Hedonic analysis; Land use; Spatial externalities; Crop Production/Industries; Environmental Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/9372

The impact of government policies on land use in Northern Vietnam: an institutional approach for understanding farmer decisions
Provedor de dados: 31
Autores: Clement,   Floriane; Amezaga,   Jaime M.; Orange,   Didier; Toan,   Tran Duc.
Tipo: Report
Palavras-chave: Land use; Public policy; Reforestation; Farmers; Decision making; Land management; Shifting cultivation; Villages; Vietnam; Agribusiness; Agricultural Finance; Community/Rural/Urban Development; Crop Production/Industries; Farm Management; Institutional and Behavioral Economics; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/52968

Market Interactions, Farmer Choices, and the Sustainability of Growing Advanced Biofuels
Provedor de dados: 31
Autores: Jiang,   Yong; Swinton,   Scott M.
Advanced biofuels such as cellulosic ethanol are of great interest for their potential to supply a significant portion of U.S. fuel needs plus advantages over corn grain-based ethanol.  The sustainability of agriculture-based advanced biofuels depends on how farmers would respond in providing biomass feedstock, yet economic behavior by farmers has been under recognized by the science community.  Focusing on markets and policy incentives, this research shows that farmers are unlikely to convert current grain cropland to grow a dedicated cellulosic biomass crop such as switchgrass.  However, the financial incentives to harvest cellulosic biomass provided by the 2008 farm bill may stimulate corn production due to demand for corn grain for feed and ethanol and...
Tipo: Working or Discussion Paper
Palavras-chave: Biomass; Energy; Advanced biofuels; Corn; Land use; Switchgrass; Cellulosic ethanol; Environmental Economics and Policy; Production Economics; Resource /Energy Economics and Policy; Q42; Q12.
Ano: 2008
URL: http://purl.umn.edu/43634

Basing Superfund Cleanups on Future Land Uses: Promising Remedy or Dubious Nostrum?
Provedor de dados: 31
Autores: Wernstedt,   Kris; Hersh,   Robert; Probst,   Katherine N.
Supporters of the effort to link cleanups at hazardous waste sites to the sites' expected land uses claim that amending language in the federal Superfund statute to allow this may yield a number of benefits. These include rationalizing the cleanup process and decreasing cleanup costs, promoting economic development in the local communities that host Superfund sites, and helping such communities exercise more control over the cleanups. However, interviews with Superfund stakeholders and a detailed case study call into question these arguments. The current role of land use in cleanup, uncertainties about whether economic development is likely at the bulk of Superfund sites, the long-run viability of institutional controls, the willingness of communities to...
Tipo: Working or Discussion Paper
Palavras-chave: Land use; Economic development; Superfund; Land Economics/Use; Q24; Q28; R52.
Ano: 1997
URL: http://purl.umn.edu/10540

ORDENAMENTO TERRITORIAL DO ALTO ACRE
Provedor de dados: 31
Autores: Siviero,   Amauri; Bayma,   Marcio Muniz Albano; Medeiros,   Magaly F.S.T.
A implantação do ordenamento territorial do Alto Acre é etapa fundamental para o planejamento da ocupação dos espaços e direcionamento de atividades em busca do desenvolvimento regional. Este trabalho teve como objetivo criar um referencial teórico para a implantação do ordenamento territorial da região do Alto Acre. A organização deste trabalho foi dividida em duas partes: a primeira tratou da contextualização jurídico-institucional do ordenamento territorial da Amazônia, sua interface com zoneamento econômico-ecológico em construção no Sudeste da Amazônia, considerando a região do Alto Acre. A segunda parte procurou detalhar as principais atividades desenvolvidas na área de estudo como: caracterização da região em estudo, instituições, diagnósticos de...
Tipo: Conference Paper or Presentation
Palavras-chave: Desenvolvimento regional; Zoneamento ecológico-econômico; Uso da terra; Amazônia Ocidental; Regional Development; Ecologic-economic zoning; Land use; Ocidental Amazon; Land Economics/Use.
Ano: 2008
URL: http://purl.umn.edu/112700

Land settlement planning for improved irrigation management: a case study of the Kirindi Oya Irrigation and Settlement Project
Provedor de dados: 31
Autores: Stanbury,   Pamela.
This paper analyzes the impact of settlement policies on irrigation management in a new irrigated settlement scheme in southern Sri Lanka based on field research in 1988.  It provides policy recommendations for improvements on this scheme and in future schemes.
Tipo: Book
Palavras-chave: Land use; Settlement patterns; Irrigation management; Irrigated farming; Farmer-agency interactions; Farmers associations; Economic aspects; Irrigation programs; Irrigable land; Farmer participation; Farm Management; Institutional and Behavioral Economics; Land Economics/Use.
Ano: 1989
URL: http://purl.umn.edu/114042

Modellgestützte Abschätzung der regionalen landwirtschaftlichen Landnutzung und Produktion in Deutschland vor dem Hintergrund der „Gesundheitsüberprüfung“ der GAP
Provedor de dados: 31
Autores: Kreins,   Peter; Gomann,   Horst.
The framework conditions surrounding agricultural production in Germany have changed dramatically due to the Renewable Energy Law (EEG) and a sustained increase in agricultural prices. The Common Agricultural Policy, substantially reformed in the Luxemburg Compromise, will be considered in the framework of the “Health Check”. Against this background, the regional developments anticipated in dairy production, beef cattle husbandry and agricultural land use by the year 2015 are analysed with the help of the regionalized agricultural sector model RAUMIS. Simulations on the adaptability of dairy production under different market conditions are carried out with regard to the expiration of the dairy quota regulation. The farming intensity on arable land is...
Tipo: Journal Article
Palavras-chave: Common Agricultural Policy; Milk market reform; Bio-masse; Agricultural sector model; Land use; Agricultural and Food Policy; Land Economics/Use.
Ano: 2008
URL: http://purl.umn.edu/97592

Land use and land reform in former Central and East European countries
Provedor de dados: 31
Autores: Takacs-Gyorgy,   Katalin; Bandlerova,   Anna; Sadowski,   Adam.
The importance of agriculture is decreasing all over the world. The aim of the paper is to compare the ownership structure and land use in some selected former Central and Eastern European countries. The property structure and land use is in dichotomy, the production is performed simultaneously on small-size farms which produce primarily for self-consumption. The importance of farm land leases is increasing. The present paper tries to identify the main differences and similarities in land ownership and property structure, the changes in the last fifteen years, what happened and whether the expectations had been met. Furthermore the paper compares the main regulations of land ownership and tenancy in different countries, explains land market protection, and...
Tipo: Conference Paper or Presentation
Palavras-chave: Property structure; Land prices; Land use; Land use and ownership; Land Economics/Use.
Ano: 2007
URL: http://purl.umn.edu/7792

An investigation of the relationship between depth to groundwater and malaria prevalence, Punjab, Pakistan
Provedor de dados: 31
Autores: Donnelly,   M.J.; Birley,   M.H.; Konradsen,   Flemming.
Tipo: Working or Discussion Paper
Palavras-chave: Groundwater; Malaria; Waterborne diseases; Land use; Public health; Farmers; Institutions; Infrastructure; Maps; Statistics; Rice; Farm Management; Health Economics and Policy.
Ano: 1997
URL: http://purl.umn.edu/113607

Földhasználat és fenntarthatóság
Provedor de dados: 31
Autores: Magda,   Robert.
A jelen kor legfontosabb problémája, hogy hogyan és miként kezeljük azt a válságot, melynek jelei egyes elemzők szerint már két éve, de kézzel foghatóan is közel egy éve jelen vannak a mindennapjainkban. Egy olyan helyzetről van szó, ami érinti a világ minden országát, az élet minden területét, ezért elengedhetetlen vizsgálni azokat a lehetőségeket, melyek kiutat jelenthetnek ebből a helyzetből. Ez természetesen rendkívül összetett feladat, társadalmi, gazdasági és ökológiai vonatkozásai miatt. A megoldás keresése is komplexitást igényel. Jelen tanulmányban azt mutatjuk be, hogy milyen a földhasználat ebben a különösen kritikus időszakban, illetve melyek lehetnek azok a formái, amelyek elősegíthetik a kiút megtalálását, mind¬amellett, hogy közben...
Tipo: Journal Article
Palavras-chave: Földhasználat; Fenntarthatóság; Válság; Korlátozottság; Oktatás; Land use; Sustainability; Crisis; Limitations; Education; Agricultural and Food Policy; Land Economics/Use.
Ano: 2010
URL: http://purl.umn.edu/99081

EXPANSÃO DE ÁREA DA AGRICULTURA BRASILEIRA: PERFIL E DESIGUALDADES
Provedor de dados: 31
Autores: Freitas,   Rogerio Edivaldo; Mendonca,   Marco Aurelio Alves de; Lopes,   Geovane De Oliveira.
O artigo objetivou mapear as diferenças inerentes ao crescimento da área de produção da agricultura brasileira no período de 1994 a 2005, no contexto das mesorregiões brasileiras. Foram empregados dados de valor da produção e das áreas colhida e plantada, da pesquisa de Produção Agrícola Municipal (PAM), do Instituto Brasileiro de Geografia e Estatística (IBGE). Utilizou-se o procedimento de análise de grupamentos para identificar similaridades e diferenças entre as mesorregiões agrícolas brasileiras. Os resultados evidenciam a presente importância da fronteira agrícola do oeste nordestino; do norte do Centro-Oeste e de vastas áreas da região Norte do País, em que pese o dinamismo observado nos estados do Paraná e Rio Grande de...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultura; Área plantada; Análise de grupamentos; Agriculture; Land use; Clusters analysis; Crop Production/Industries; Livestock Production/Industries.
Ano: 2008
URL: http://purl.umn.edu/108142

Auswertung von Daten des Integrierten Verwaltungs- und Kontrollsystems zur Abschätzung von Wirkungen der EU-Agrarreform auf Umwelt und Landschaft
Provedor de dados: 31
Autores: Osterburg,   Bernhard; Nitsch,   Heike; Laggner,   Birgit; Roggendorf,   Wolfgang.
Zusammenfassung: Der vorliegende Arbeitsbericht entstand im Rahmen des F+E-Vorhabens „Naturschutzfachliche Bewertung der GAP - Effizienzsteigerung durch Nutzung bestehender Datenbestände“, das durch das Bundesamt für Naturschutz (BfN) mit Mitteln des Bundesministeriums für Umwelt, Naturschutz und Reaktorsicherheit gefördert wurde. Ziel dieses Projektes war die Untersuchung flächenbezogener Auswirkungen der im Jahr 2003 beschlossenen EU-Agrarreform in Hinblick auf naturschutzrelevante Fragestellungen.                                                                                                                        Grundlage für quantitative Analysen bildeten die Daten des Integrierten Verwaltungs- und Kontrollsystems (InVeKoS), Fachkarten zu...
Tipo: Report
Palavras-chave: Agrarreform; InVeKoS-Daten; Flächennutzung; Grünland; Naturschutz; Agricultural reform; IACS-data; Land use; Grassland; Nature conservation; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy; Q24; Q28; Q57; Q58.
Ano: 2009
URL: http://purl.umn.edu/104011

ECONOMIC ANALYSIS OF AGRICULTURAL LAND CONVERSION IN THE SOUTHEAST
Provedor de dados: 31
Autores: Nzaku,   Kilungu; Bukenya,   James O.
Revised version of paper added to AgEcon Search 10/06/05.
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Growth equilibrium modeling; Population; Employment; Land Economics/Use.
Ano: 2005
URL: http://purl.umn.edu/19456

LOCATIONAL EFFECTS OF URBANIZATION ON AGRICULTURE IN SOUTHEASTERN PENNSYLVANIA
Provedor de dados: 31
Autores: Larson,   Janelle M.; Findeis,   Jill L.; Smith,   Stephen M.
Most agricultural output in the northeastern United States comes from counties that have experienced significant development. A mail survey, with 300 responses, was conducted in southeastern Pennsylvania to determine farmer adaptation to urbanization in this region. Despite development, traditional agriculture still predominates. Changes in land use were examined using multinomial logit models. Results show that changes in population density and farm preservation policies have an influence, as increased population density reduced total land operated and having land in an agricultural security area increased it.  Other measures of urbanization, such as proximity to a city or inter-state highway had no statistically significant effect on farm practices....
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural adaptation; Rural development; Off-farm income; Urbanization; Land use; Land Economics/Use.
Ano: 2000
URL: http://purl.umn.edu/21885

Land Use Consequences of Crop Insurance Subsidies
Provedor de dados: 31
Autores: Miao,   Ruiqing; Feng,   Hongli; Hennessy,   David A.
There have long been concerns that federal crop insurance subsidies may significantly impact land use decisions. It is well known that classical insurance market information asymmetry problems can lead to a social excess of risky land entering crop production. Our conceptual model shows that the problem will arise absent any information failures. This is because the subsidy is i) proportional to acres planted, and ii) greatest for the most production risky land. Using farm-level data, we follow this observation through to establish the implications of subsidies for the extent of crop production, with particular emphasis on U.S. regions where the cropland growth is likely to have marked adverse environmental impacts. Simulation results show that when...
Tipo: Working or Discussion Paper
Palavras-chave: Crop insurance; Land use; Crop yields; Yield risk measurement; Agricultural and Food Policy; Crop Production/Industries; Land Economics/Use; Q15; Q18; Q24.
Ano: 2011
URL: http://purl.umn.edu/103891

AGRICULTURAL COOPERATIVES AND THEIR DEVELOPMENT AFTER THE TRANSFORMATION
Provedor de dados: 31
Autores: Lazikova,   Jarmila; Bandlerova,   Anna; Schwarcz,   Pavol.
Agricultural cooperatives in Slovakia still represent the most important legal form of enterprises in agriculture. Chosen indicators of financial analysis and indicators of revenues as calculated to hectare of agricultural land show that the transformed agricultural cooperatives in Slovakia are able to keep in step with newly created business companies. The paper tries to answer the question why the agricultural cooperatives in Slovakia still maintain their dominant position in agricultural business while in other countries of Central Europe agricultural cooperatives play only an insignificant role.
Tipo: Book
Palavras-chave: Enterprise forms; Land use; Land price; Profitability indicators; Agribusiness; Land Economics/Use; Productivity Analysis.
Ano: 2008
URL: http://purl.umn.edu/43400

The Structure of Individual (Family) Farms in Hungary
Provedor de dados: 31
Autores: Szep,   Katalin; Burger,   Anna.
In 2003 a research study looked at the position of smallholders; the survey was carried out using questionnaires and interviews. The 613 farms included in the survey were situated in 3 counties in the Southern Great Plain of Hungary and in 3 counties of the Western part of the country (Transdanubia). The results of the survey showed that there was a firm tendency of concentration among the Hungarian individual farms. Though their average size is about 3 ha, the number and area of farms over 50 ha size are rapidly growing and taking a significant part of the total individual agricultural area. The number of small farms is great but their total farming area is relatively small. The concentration takes place primarily due to renting. The land market is...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural production; Efficiency; Family farms; Land tenure; Land use; Farm Management.
Ano: 2007
URL: http://purl.umn.edu/8517

Modelling the CAP Reform at the Regional Level with ProLand
Provedor de dados: 31
Autores: Weinmann,   Bernd; Sheridan,   Patrick; Schroers,   Jan Ole; Kuhlmann,   Friedrich.
The reform of the European Common Agricultural Policy (CAP) will fundamentally affect the decision behaviour of land users. So far transfer payments were coupled to specific forms of land use. The reform encourages land users to make decisions concerning production based solely on market aspects. The effects of the CAP reform on the Lahn Dill region in Germany are simulated with the spatially explicit land use model ProLand. The results show that land use decisions will be based stronger on site specific natural conditions than was the case in the Agenda 2000 scenario. The transfer payment volume directed into the region increases considerably.
Tipo: Conference Paper or Presentation
Palavras-chave: Modelling; Decision support; Land use; Spatially explicit; Agricultural and Food Policy; Q01.
Ano: 2005
URL: http://purl.umn.edu/24508

Agricultural Resources and Environmental Indicators, 2006 Edition
Provedor de dados: 31
Autores: Wiebe,   Keith D.; Gollehon,   Noel R.
This is a large file. We have had reports of problems opening the file in Mozilla Firefox. If you have problems, try using Windows Internet Explorer.
Tipo: Report
Palavras-chave: ERS; AREI; Agricultural economics; Natural resources; Land; Land use; Land values; Land ownership; Water use; Irrigation; Water quality; Genetic resources; Biotechnology; Agricultural research; Agricultural productivity; Global resources; Soil conservation; Soil erosion; Pest management; Nutrient management; Animal agriculture; Organic agriculture; Conventional agriculture; Conservation policy; Land retirement; Working lands; Wetlands; Farmland protection; Environmental quality; Farm structure; Farm ownership; Farm management decisions; Farm business; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/7207

Land Use Change, Benefit Transfer and Ecosystem Valuation in North Georgia
Provedor de dados: 31
Autores: Ngugi,   Daniel; Mullen,   Jeffrey D.; Bergstrom,   John C.
This study seeks to forecast land use change in a North Georgia ecosystem, and estimate the economic value of the ecosystem using benefit transfer techniques. We forecast land use change based on a structural time series model and a simple growth rate model.  The study suggests a lower bound willingness to pay value of about USD 16,000 per year to ensure compliance with fishing and drinking water quality standards with regard to fecal coliform bacteria and dissolved oxygen. Conservation efforts are likely to cost less than the cost of defensive behavior or ecosystem restoration.
Tipo: Conference Paper or Presentation
Palavras-chave: Ecosystem; Economic value; North Georgia; Land use; Water quality; Structural time series; Benefit transfer; Forecasting; Environmental Economics and Policy; Land Economics/Use; Q51; Q53; Q57; R14.
Ano: 2009
URL: http://purl.umn.edu/47110

The likely regional impacts of an agricultural emissions policy in New Zealand: Preliminary analysis
Provedor de dados: 31
Autores: Sin,   Isabelle; Brunton,   Emma; Hendy,   Joanna; Kerr,   Suzi.
Hendy and Kerr (2005b) find that an emissions charge on agricultural methane and nitrous oxide of $25 per tonne of carbon dioxide (CO2) equivalent would be likely to reduce New Zealand‘s net land-use related emissions for commitment period one in the order of 3%, with full accounting. The costs per farmer and as a percentage of profit would be very high. This paper considers the regional impacts of such a policy in New Zealand by allocating the emission charge across space according to the location of animals. We then combine our emissions charge information with data on the socio-economic characteristics of the affected areas. Obviously rural areas are heavily affected. In many respects, for example median income, ethnic mix, and percentage of working...
Tipo: Conference Paper or Presentation
Palavras-chave: Climate change; Land use; Social impacts; Methane; Nitrous oxide; Dairy; Sheep; Beef; Distribution of costs; Regional; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Livestock Production/Industries; Q25; Q28; R14.
Ano: 2005
URL: http://purl.umn.edu/98506

Possible impacts of the transformation of water infrastructure on productive water uses: The case of the Seokodibeng village in South Africa
Provedor de dados: 31
Autores: Ladki,   Marvan; Seshoka,   Jetrick; Faysse,   Nicolas; Levite,   Herve; van Koppen,   Barbara.
Tipo: Working or Discussion Paper
Palavras-chave: Water users’ associations; Water supply; Social participation; Land use; Water use; Villages; History; Domestic water; Irrigation water; Food security; Sanitation; Cost recovery; Project management; Pipes; Water balance; Livestock; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Livestock Production/Industries.
Ano: 2004
URL: http://purl.umn.edu/92656

World Soybean Production: Area Harvested, Yield, and Long-Term Projections
Provedor de dados: 31
Autores: Masuda,   Tadayoshi; Goldsmith,   Peter D.
www.ifama.org
Tipo: Journal Article
Palavras-chave: Soybean; Production; Yield; Land use; Long-term projection; Exponential smoothing with damped trend; Agribusiness; Agricultural and Food Policy; Crop Production/Industries; Land Economics/Use; Q1.
Ano: 2009
URL: http://purl.umn.edu/92573

Assessment of Ecological Risk to Land Use in Liaoning Province Based on Global Climate Change
Provedor de dados: 31
Autores: Sun,   Yun-peng.
Based on the climatic data and other statistics of climatic data of 54 meteorological stations from 1956 to 2005 in Liangning Province, the annual and seasonal light, heat and water and the like major elements of climatic resources are diagnosed and analyzed by using the method of linear climate trend rate. The results show that warming trend is 0.25℃/10a , the precipitation decrease gradually by 2.2mm/a and the decreasing trend of solar radiation and hours of sunshine is not dramatic. The overall climate change trend is warming and drying trend, featuring “significantly increased temperature, the decreased precipitation and sunshine”. These features are significant in autumn, thus leading to the trend of moving west and retreating east of the...
Tipo: Journal Article
Palavras-chave: Global climate change; Land use; Scenario analysis; Ecological security assessment; China; Agribusiness.
Ano: 2010
URL: http://purl.umn.edu/93668

Impacts of Farmer Attitude on the Design of a Nutrient Reduction Policy – a New Zealand Catchment Case Study
Provedor de dados: 31
Autores: Samarasinghe,   Oshadhi; Daigneault,   Adam J.; Greenhalgh,   Suzie; Munguia,   Oscar Montes de Oca; Walcroft,   Jill.
This paper uses responses from a regional farmer survey that identify farmers’ perceptions of environmental policies to calibrate a catchment-level environmental economic model (NZ-FARM) to estimate the impacts of a nutrient reduction policy in North Canterbury, New Zealand. The model maximizes farm income across a catchment, accounting for changes in land use, farm output, nutrient leaching, and GHG emissions. Simulations estimate that reducing nutrient loads by 15–30% can be achieved with economic impacts ranging between 1 and 10%, based on how willing landowners are to change how they manage their farm. Farmers are often hesitant to implement certain mitigation options, however, which results in higher economic costs than the ‘optimal’ estimates....
Tipo: Presentation
Palavras-chave: Agriculture and forestry modelling; Land use; Nutrient budgeting; Water quality; Greenhouse gas emissions; Farmer perception towards policy; Agricultural and Food Policy.
Ano: 2012
URL: http://purl.umn.edu/124439

Experiments with regulations &amp; markets linking upstream tree plantations with downstream water users
Provedor de dados: 31
Autores: Nordblom,   Thomas L.; Reeson,   Andrew; Finlayson,   John D.; Hume,   Iain H.; Whitten,   Stuart M.; Kelly,   Jason A.
Land-use change in upper catchments impact downstream water flows. As trees use large amounts of water the expansion of upstream plantations can substantially reduce water availability to downstream users. There can also be impacts on downstream salinity due to reduced dilution flows. In some jurisdictions afforestation requires the purchase of water rights from downstream holders, while in others it does not, effectively handing the water rights to the upstream landholders. We consider the economic efficiency and equity (profitability and distributional) consequences of upstream land use change in the presence of a water market under alternate property rights regimes and different salinity scenarios.
Tipo: Conference Paper or Presentation
Palavras-chave: Experimental-economics; Tree-plantations; Environmental-services; Urban; Irrigation; Stock &amp; domestic; Water use; Land use.
Ano: 2009
URL: http://purl.umn.edu/47945

Impacts of Federal Policies and Programs on Wetlands
Provedor de dados: 31
Autores: Crosson,   Pierre; Frederick,   Kenneth D.
Human activities have resulted in the loss of about half of the original 221 million acres of wetlands in the conterminous 48 states. Federal laws, policies, and programs have had major impacts on the nation's wetland resources. Initially, they encouraged and subsidized the draining and filling of wetlands, the flooding of wetlands behind dams, and the diversion and alteration of streamflows to riparian wetlands. More recently, federal policies have been directed to conserving and preventing further net losses. The focus of this study is on the impacts of federal policies on riparian wetlands, i.e., those formed at the interface of rivers and streams and uplands and that require occasional flooding to maintain the health of their ecosystems. The study...
Tipo: Working or Discussion Paper
Palavras-chave: Wetlands; Land use; Agricultural policy; Water policy; Environmental Economics and Policy; Q15; Q25; R14.
Ano: 1999
URL: http://purl.umn.edu/10579

Land-Use Change and Carbon Sinks: Econometric Estimation of the Carbon Sequestration Supply Function
Provedor de dados: 31
Autores: Lubowski,   Ruben N.; Plantinga,   Andrew J.; Stavins,   Robert N.
When and if the United States chooses to implement a greenhouse gas reduction program, it will be necessary to decide whether carbon sequestration policies - such as those that promote forestation and discourage deforestation - should be part of the domestic portfolio of compliance activities. We investigate the cost of forest-based carbon sequestration. In contrast with previous approaches, we econometrically examine micro-data on revealed landowner preferences, modeling six major private land uses in a comprehensive analysis of the contiguous United States. The econometric estimates are used to simulate landowner responses to sequestration policies. Key commodity prices are treated as endogenous and a carbon sink model is used to predict changes in...
Tipo: Working or Discussion Paper
Palavras-chave: Abatement; Carbon; Climate change; Costs; Forestry; Greenhouse gases; Land use; Land-use change; Sequestration; Land Economics/Use; Q540; Q230; Q240; Q150.
Ano: 2005
URL: http://purl.umn.edu/10561

How Well Can Markets for Development Rights Work? Evaluating a Farmland Preservation Program
Provedor de dados: 31
Autores: McConnell,   Virginia D.; Kopits,   Elizabeth; Walls,   Margaret.
Transferable development rights (TDRs) can be used as a local planning tool to preserve land for particular uses. TDRs separate ownership of the right to develop land from ownership of the land itself, creating a market in which the development rights can be bought and sold. Landowners who sell TDRs permanently preserve their land in an undeveloped state; those TDRs are then used to increase the density of development elsewhere. In this paper, we evaluate a TDR program for preserving farmland in Calvert County, Maryland. We evaluate the performance of the TDR market over the 23-year life of the program by looking at the number of transactions and TDRs sold and the level and dispersion of prices over time. We also look closely at the influence of the county...
Tipo: Working or Discussion Paper
Palavras-chave: Land use; Farmland preservation; Development rights; Land Economics/Use; Q15; Q24; R140.
Ano: 2003
URL: http://purl.umn.edu/10659

A mezőgazdaságban keletkező biomassza energetikai hasznosításának agrárgazdasági megközelítése
Provedor de dados: 31
Autores: Molnar,   Andras.
A gazdálkodás ökonómiai kérdéseivel foglalkozók számára a piaci csere híján fontos feladat az externáliák minél szélesebb körű számszerűsítése, mivel csak a társadalom számára jelentkező összes költség és haszon figyelembevételével lehet megítélni a mindenkori agrárpolitikát. Egyre fontosabb az, hogy milyen agrárpolitikai eszközökkel oldhatók meg a liberalizált kereskedelemmel szembeni elvárások és a nem-termék jellegű javak társadalmilag optimális kibocsátása. Ebben a kettős elvárásban a földtulajdon és földhasználat szétválása előnytelen.   -------------------------------------------    In the absence of exchange in the market, researchers into economic aspects of farming place a high emphasis on quantifying externalities to the maximum extent possible....
Tipo: Journal Article
Palavras-chave: Externáliák; Biomassza; Energetikai felhasználás; Földhasználat; Méret-; Skála- és választékgazdaságosság; Externalities; Biomass; Use for energy production; Land use; Economies of scale; Volume and choice; Agricultural and Food Policy; Crop Production/Industries; Environmental Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/92533

Comparing the profitability of farming and forestry
Provedor de dados: 31
Autores: Evison,   David.
This paper updates an analysis of returns from major productive land uses in New Zealand carried out in 2008. Trends in profitability over time are shown, and a preliminary investigation of the relationship between land-use change towards forestry (new land planting) and forestry profitability is described.
Tipo: Conference Paper or Presentation
Palavras-chave: Profitability; Farming; Forestry; Land use; Land-use change; Agricultural and Food Policy; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Livestock Production/Industries.
Ano: 2010
URL: http://purl.umn.edu/99682

Determinants of Land-Use Change In the United States 1982-1997
Provedor de dados: 31
Autores: Lubowski,   Ruben N.; Plantinga,   Andrew J.; Stavins,   Robert N.
Changes in the use of land in the United States produce significant economic and environmental effects with important implications for a wide variety of policy issues, including protection of wildlife habitat, management of urban growth, and mitigation of global climate change. In contrast to previous descriptive and qualitative analyses of the trends in national land use, this paper uses an econometric approach to isolate the importance of historical changes in land-use profits and key government policies in determining national land-use changes from 1982 to 1997. The policies we examine are the Conservation Reserve Program (CRP) and total government payments to crop producers. We estimate a national-level discrete choice model of changes among the major...
Tipo: Working or Discussion Paper
Palavras-chave: Land use; Econometric model; Counterfactual simulation; Conservation Reserve Program (CRP); Land Economics/Use; C53; Q1; Q24; R14; R15.
Ano: 2003
URL: http://purl.umn.edu/10714

Spatial Disaggregation of Agricultural Production Data
Provedor de dados: 31
Autores: Howitt,   Richard E.; Reynaud,   Arnaud.
In this paper we develop a dynamic data-consistent way for estimating agricultural land use choices at a disaggregate level (district-level), using more aggregate data (regional-level). The disaggregation procedure requires two steps. The first step consists in specifying and estimating a dynamic model of land use at the regional level. In the second step, we disaggregate outcomes of the aggregate model using maximum entropy (ME). The ME disaggregation procedure is applied to a sample of California data. The sample includes 6 districts located in Central Valley and 8 possible crops, namely: Alfalfa, Cotton, Field, Grain, Melons, Tomatoes, Vegetables and Subtropical. The disaggregation procedure enables the recovery of land use at the district-level with an...
Tipo: Conference Paper or Presentation
Palavras-chave: Disaggregation; Bayesian method; Maximum entropy; Land use; Production Economics; C11; C44; Q12.
Ano: 2002
URL: http://purl.umn.edu/24961

Economic analysis of field afforestation and forest clearance for cultivation in Finland
Provedor de dados: 31
Autores: Hyytiainen,   Kari; Leppanen,   J.; Pahkasalo,   T.
Rational land use decisions of private landowners are analysed in the framework of Common Agricultural Policy and other public support schemes effective in Finland in 2003. Net present values are computed for a marginal hectare of a typical Finnish farm. Three alternative land uses are considered: traditional cultivation of oats (Avena sativa L.), cultivation of reed canary grass (Phalaris Arundinacea L.) for energy production, and production of Norway spruce (Picea abies [L.] Karst.) timber. Both arable land and forested land are considered as initial states. Experimental data from 38 afforested stands and distance-independent individual-tree stand growth model are used for computing discounted net returns from forestry. Statistics on market prices,...
Tipo: Conference Paper or Presentation
Palavras-chave: Common Agricultural Policy; Energy grass; Incentives; Land use; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/44178

Renewable Energy Development and Implications to Agricultural Viability
Provedor de dados: 31
Autores: Adelaja,   Adesoji O.; Hailu,   Yohannes G.
Food and energy security have increasingly acquired key natural resource policy focus. As alternative energy solutions become more land intensive, the potential implication to the agricultural sector becomes of policy interest. This study investigated the impact of projected wind energy development in Michigan on the agricultural sector. Results indicate that land lease payments overtime for wind turbine siting are expected to generate $50 million per year, impacting agricultural viability. Spatial distribution analysis suggests that most of the projected lease payments to farmers are concentrated in low value agricultural land, low value agricultural production, urban influenced, and low net farm income locations. We found that the spatial distribution of...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural viability; Renewable energy; Land use; Spatial analysis; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/6132

From Pasture Land to Farm Plots, Triggers and Motivations for Land Use Changes in Afar, Ethiopia
Provedor de dados: 31
Autores: Kotu,   Bekele Hundie.
Communal land use system has existed in pastoral Afar (as in many other pastoral areas) since time of immemorial accommodating the interests of different user groups. This form of land use system, which has adapted to the harsh environment in which herders raise their livestock, enables efficient utilization of scattered pastoral resources since it accommodates constant mobility of livestock. In contrast to the mobile way of life, which characterizes pastoralism, farming as a sedentary activity is only marginally present in the lowlands of the Afar region. However, the traditional land-use system in Afar is changing nowadays if favor farming because of various reasons. This paper explains such changes mainly based the data collected through a household...
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Pastoralists; Farming; Drought; Afar; Ethiopia; Agricultural and Food Policy; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Risk and Uncertainty; Q15; Q24.
Ano: 2009
URL: http://purl.umn.edu/51276

Dynamic impacts of a financial reform of the CAP on regional land use, income and overall growth
Provedor de dados: 31
Autores: Jansson,   Torbjorn; Bakker,   Martha M.; Le Mouel,   P.; Schirmann-Duclos,   D.; Verhoog,   A. David; Verkerk,   P.J.
In this paper we investigate the impacts of abolishing the Common Agricultural Policy (CAP) for the post-2013 European Union (EU) financial perspective and the impacts of re-investing the released funds on research and development (R&amp;D). We apply a linked system of models to analyze the impacts for the EU member states. The linked system consists of five land-use sector models (agriculture, forestry, urban area, tourism and transport infrastructure), which are connected to a macro-econometric model. Additionally, a land cover model is used to disaggregate land use countries to a 1 km² grid. Three scenarios are analysed. In the “baseline” currently decided policies are assumed to be continued until 2025. In the “tax rebate” scenario agricultural support...
Tipo: Conference Paper or Presentation
Palavras-chave: CAP reform; Economical growth; Land use; Agricultural and Food Policy; Land Economics/Use.
Ano: 2008
URL: http://purl.umn.edu/43640

ENVIRONMENTAL EFFECTS OF AGRICULTURAL LAND-USE CHANGE: THE ROLE OF ECONOMICS AND POLICY
Provedor de dados: 31
Autores: Lubowski,   Ruben N.; Bucholtz,   Shawn; Claassen,   Roger; Roberts,   Michael J.; Cooper,   Joseph C.; Gueorguieva,   Anna; Johansson,   Robert C.
This report examines evidence on the relationship between agricultural land-use changes, soil productivity, and indicators of environmental sensitivity. If cropland that shifts in and out of production is less productive and more environmentally sensitive than other cropland, policy-induced changes in land use could have production effects that are smaller-and environmental impacts that are greater-than anticipated. To illustrate this possibility, this report examines environmental outcomes stemming from landuse conversion caused by two agricultural programs that others have identified as potentially having important influences on land use and environmental quality: Federal crop insurance subsidies and the Conservation Reserve Program (CRP), the Nation's...
Tipo: Report
Palavras-chave: Conservation Reserve Program (CRP); Crop insurance; Erosion; Extensive margin; Farm policy; Imperiled species; Land use; Land-use change; Land quality; Nutrient loss; Soil productivity; Environmental Economics and Policy; Land Economics/Use.
Ano: 2006
URL: http://purl.umn.edu/33591

IMPACTS OF INCORPORATING LAND EXCHANGES BETWEEN FORESTRY AND AGRICULTURE IN SECTOR MODELS
Provedor de dados: 31
Autores: Alig,   Ralph J.; Adams,   Darius M.; McCarl,   Bruce A.
The forest and agriculture sectors are linked by having a portion of their land bases suitable for use in either sector.  A substantial part of the southern land base is suitable for either forestry or agriculture use, with most of forestation on U.S. agriculture land in the South.  We examine how land exchanges between forestry and agriculture are influenced by specific federal conservation and farm support policies, including changes in the Conservation Reserve Program.  Reallocation of land is a significant part of the sectors' responses to the policies, along with intensification of timber management on existing southern forests.
Tipo: Journal Article
Palavras-chave: Agriculture; Conservation; Forest sector; Land use; Projections; Land Economics/Use.
Ano: 1998
URL: http://purl.umn.edu/15557

Using a Bundled Amenity Model to Estimate the Value of Cropland Open Space and Determine an Optimal Buffer Zone
Provedor de dados: 31
Autores: Kuminoff,   Nicolai V.
This study investigates how proximity to cropland influences residential property values and considers the public policy implications. The hedonic model generalizes previous studies by recognizing that the bundle of externalities generated by crop production may increase the price of some homes and decrease the price of others, depending on their respective locations. Using an instrumental variables approach to estimate the model for San Joaquin County, California, suggests that proximity to cropland increases the value of most, but not all, single-family homes near the agricultural-urban edge. The results imply an agricultural buffer zone of 68 meters would mitigate most cropland disamenities.
Tipo: Journal Article
Palavras-chave: Amenity value; Buffer zone; Cropland; Hedonic; Land use; Open space; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2009
URL: http://purl.umn.edu/50086

Sny Magill Watershed Modeling Project: Final Report
Provedor de dados: 31
Autores: Saleh,   Ali; Gassman,   Philip W.; Kling,   Catherine L.
Replaced with revised version of paper 10/29/08.
Tipo: Working or Discussion Paper
Palavras-chave: BMP; Land use; Modeling; Nutrient management; Water quality; Watershed; Resource /Energy Economics and Policy.
Ano: 2006
URL: http://purl.umn.edu/18666

Economic Impacts of GHG and Nutrient Reduction Policies in New Zealand: A Tale of Two Catchments
Provedor de dados: 31
Autores: Daigneault,   Adam J.; Greenhalgh,   Suzie; Samarasinghe,   Oshadhi.
Agricultural and forestry GHG emissions are a key feature of New Zealand’s emissions profile, and New Zealand is the only country, to date, to have indicated that agricultural and forestry emissions will be covered under their domestic climate policy – the New Zealand Emissions Trading Scheme. Coupled with climate policy development is the increasing scrutiny of agricultural impacts on water. This paper uses New Zealand Forest and Agriculture Regional Model (NZ-FARM) to assess the potential economic and environmental impacts of imposing both a climate and nutrient reduction policy on the agricultural and forestry industries in the Manawatu and Hurunui/Waiau catchments in New Zealand. We find that adding a scheme that reduces catchment-level nutrients by...
Tipo: Presentation
Palavras-chave: Agriculture and forestry modelling; Land use; Climate policy; Water quality; Greenhouse gas emissions; Nutrient leaching; Environmental Economics and Policy.
Ano: 2012
URL: http://purl.umn.edu/124284

South Dakota Agricultural Land Market Trends 1991-2010: The 2010 SDSU South Dakota Farm Real Estate Survey
Provedor de dados: 31
Autores: Janssen,   Larry; Pflueger,   Burton; Opoku,   Emmanuel.
Agricultural land values and cash rental rates in South Dakota, by region and by state, are primary topics of this report. The target audience are farmers and ranchers, landowners, ag professional (lenders, rural appraisers, professional farm managers), and policy makers interested in ag land market trends.  This report contains results of the 2010 Farm Real Estate Market Survey, the 20th annual SDSU survey developed to estimate ag land values and cash rental rates by land use in different regions of South Dakota.
Tipo: Report
Palavras-chave: Ag land; Farmland; Acreage; Cropland; Land ownership; Land use; Land tenure; Ranchland; Agricultural Finance; Farm Management; Land Economics/Use; Q15.
Ano: 2010
URL: http://purl.umn.edu/101122

BIOFUELS, AGRICULTURE AND CLIMATE CHANGE
Provedor de dados: 31
Autores: Hubert,   Marie-Helene; Chakravorty,   Ujjayant; van Kooten,   G. Cornelis.
In the context of ever-increasing petroleum prices combined with concerns about climate change, timing of adoption and rate of diffusion of land-based fuels and backstop technologies for transportation use are examined in this paper. A global model of land allocation joined with a Hotelling model has been developed. Using this framework, effects of climate and energy policies on world agricultural and energy markets have been explored. Further, their regional impacts are also analyzed. Whereas mandatory blending bio-fuels have substantial effects on world food prices and do not succeed in curbing down carbon emissions fluxes, carbon targets are expected to speed up date of adoption of backstop technologies. Then, sensitivity scenarios with regards to...
Tipo: Conference Paper or Presentation
Palavras-chave: Ricardian rents; Land use; Biofuels; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/44259

Land and water productivity: trends across Punjab canal commands.
Provedor de dados: 31
Autores: Tahir,   Zubair; Habib,   Zaigham.
Tipo: Working or Discussion Paper
Palavras-chave: Land use; Water use; Productivity; Indicators; Crop yield; Irrigation canals; Groundwater; Water availability; River basins; Rain; Crop Production/Industries; Land Economics/Use; Productivity Analysis; Resource /Energy Economics and Policy.
Ano: 2000
URL: http://purl.umn.edu/92783

Carving Out Policy Space for Sustainability in Biofuel Production
Provedor de dados: 31
Autores: Marshall,   Elizabeth P.
Biofuels such as ethanol and biodiesel are increasingly promoted as green alternatives to petroleum-derived transport fuels. Scaling up feedstock production to produce enough biofuel to displace a significant portion of current petroleum demand will put pressure on land and water resources both domestically and internationally, however, and could potentially be accompanied by unacceptable changes in landscape-level land use patterns and provisioning of ecosystem services. Ensuring that feedstock production is sustainable and that biofuels provide the social and environmental benefits that are often attributed to them will require a carefully designed portfolio of agricultural, forestry, energy, and trade policies related to biofuels and feedstock...
Tipo: Journal Article
Palavras-chave: Biofuels; Sustainability; Land use; Greenhouse gas accounting; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/44696

Determinants of Land Use in the Densely Populated Kigezi Highlands of Southwestern Uganda
Provedor de dados: 31
Autores: Bamwerinde,   W.; Bashaasha,   Bernard; Ssembajjwe,   W.; Place,   Frank.
We use a multinominal logit model to examine the determinants of plot abandonment (unintentional fallows) and long fallows (intentional fallows) in order to propose policy interventions that lead to optimal and sustainable management of land use systems in Kigezi highlands. Household factors such as age, and post primary education positively influenced farmers' decision to abandon plots. Therefore, more fallows and abandoned terraces were common with older farmers compared to younger ones. However, farm size and household type had no significant influence on abandonment of plots. Plot variables such as slope and plot distance had the expected positive signs while soil fertility had a significant negative sign as predicted. Two types of interventions are...
Tipo: Conference Paper or Presentation
Palavras-chave: Abandoned terraces; Land use; Kigezi Highlands; Multinominal logit; Land Economics/Use.
Ano: 2006
URL: http://purl.umn.edu/25298

2nd Forum on Irrigation and water for sustainable development: 15 –16 December, 2008 Ghion Hotel, Addis Ababa, Ethiopia
Provedor de dados: 31
Autores: Awulachew,   Seleshi Bekele; Erkossa,   Teklu; Balcha,   Yodit.
Tipo: Presentation
Palavras-chave: Sustainable development; Irrigation management; Irrigation water; Irrigated farming; Irrigation systems; Supplemental irrigation; Land management; Land use; Investment; Case studies; Government policy; Rural poverty; Groundwater; Small scale systems; Socioeconomic development; Economic aspects; Economic growth; Income; Water management; Water resources development; Water harvesting; Water supply; Public policy; Agricultural production; Developing countries; Public-private cooperation; History; Case studies; River basins; Crop production; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Farm Management; Financial Economics; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Production Economics; Public Economics; Research and Development/Tech Change/Emerging Technologies; Research Methods/ Statistical Methods; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/118411

Indirect Land Use Change: a second best solution to a first class problem
Provedor de dados: 31
Autores: Zilberman,   David; Hochman,   Gal; Rajagopal,   Deepak.
Concern about the possible affects of biofuels on deforestation have led to assigning biofuel producers with the responsibility for greenhouse gas (GHG) emissions of the indirect land use changes (ILUC) associated with their activities when assessing their compliance with biofuel policies. We show that the computation of the ILUC is shrouded with uncertainty; they vary frequently, and are strongly affected by policy choices. It seems that its overall impact on GHGs is relatively minor. Once the ILUCs are introduced other indirect effects of biofuel may need to be considered which will increase the cost of biofuel regulations. Concentrating on direct regulation of biofuel and on efforts to reduce deforestation, wherever it occurs, may be more effective than...
Tipo: Working or Discussion Paper
Palavras-chave: Land use; Biofuels; Greenhouse gas emissions; Regulations; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/95578

Measuring the Welfare Loss to Landowners of Future Geographic Shifts In the Suitable Habitat for Vegetation Due to Climate Change
Provedor de dados: 31
Autores: Howard,   Peter H.
Scientists predict that global warming will cause suitable habitat ranges to shift for many plant species, including blue oak in California.  If proximity to particular land cover types significantly affects human welfare, any such shifts will affect household welfare, resulting in an indirect cost that is currently unaccounted for in the climate change literature.  Using a hedonic pricing model, the marginal values of blue oaks and the land cover types most likely to replace them are estimated at multiple spatial scales using single family residences sold in Kern County from 1997 to 2003.  In addition to the common identification problems of specification error and omitted variable bias, the variables measuring the degree of proximity of a property to...
Tipo: Conference Paper or Presentation
Palavras-chave: Hedonic; Multi-scale capitalization; Housing demand; Species distribution model; Climate change; Displacement of native species; Vegetation movement; Geographic Information System (GIS); Amenity value; Land use; Consumer/Household Economics; Demand and Price Analysis; Environmental Economics and Policy; Land Economics/Use.
Ano: 2011
URL: http://purl.umn.edu/103640

Constraints or Cooperation? Determinants of Secondary Forest Cover Under Shifting Cultivation
Provedor de dados: 31
Autores: Klemick,   Heather.
This study examines the drivers of land use in a shifting cultivation system with forest fallow. Forest fallow provides on-farm soil quality benefits, local hydrological regulation, and global public goods. An optimal control model demonstrates that farmers have an incentive to fallow less than is socially optimal, though market failures limiting crop production can have a countervailing effect by encouraging fallow. An econometric model estimated using data from the Brazilian Amazon suggests that fallowing does not result from internalization of local fallow services but instead is associated with poor market access and labor and liquidity constraints.
Tipo: Article
Palavras-chave: Forest; Farms; Fallow; Ecosystem services; Land use; Spatial econometrics; Brazil; Credit; International Development; Land Economics/Use.
Ano: 2011
URL: http://purl.umn.edu/120270

Impacts of Promoting Perennial Crops in the French Agriculture
Provedor de dados: 31
Autores: Fradj,   Nosra Ben; Jayet,   Pierre-Alain.
This paper is devoted to a quantitative analysis of the introduction of perennial crop in a short-term supply model. The analysis provides assessment of impacts regarding land use and N-input demand. We show that a variation in yield or the subsidy amount of miscanthus leads to a significant change in land use and N-input.
Tipo: Conference Paper or Presentation
Palavras-chave: Lignocellulosic perennial crop; Bio-energy; Mathematical linear programming; Land use; N-input demand; Crop Production/Industries; Marketing.
Ano: 2011
URL: http://purl.umn.edu/114246

Pressure on Cultivated Land in Fengxian County, Jiangsu Province, China
Provedor de dados: 31
Autores: Huang,   Xiao; Ding,   Zhong-Yi; Tao,   Yu-Qiong; Lian,   Hui-Min.
Based on the introduction of the general situation of research region, pressure index model of cultivated land is adopted according to the data of population, cultivated land area, crop sowing area, grain sowing area, and unit grain yield in the Statistical Yearbook of Fengxian County. The change of relevant factors of cultivated land pressure index over time is analyzed, as well as the tension level of cultivated land resources. Research shows that the pressure on cultivated land is relatively great in Fengxian County in the years 1999-2005. Grain supply and demand is still under the unsafe state. There will be more prominent contradiction between supply and demand of cultivated land in Fengxian County in the future, and the grain security will under...
Tipo: Journal Article
Palavras-chave: Pressure index of cultivated land; Land use; Sustainable development; Fengxian; China; Agribusiness.
Ano: 2010
URL: http://purl.umn.edu/97635

Developing Environmental Service Policy for Salinity and Water: Experiments with Regulations and Markets Linking Watersheds with Downstream Water Users
Provedor de dados: 31
Autores: Nordblom,   Thomas L.; Reeson,   Andrew; Whitten,   Stuart M.; Finlayson,   John D.; Kelly,   Jason A.; Hume,   Iain H.
Shortfalls in water supplies are perhaps the greatest practical NRM policy concern in Australia today, looming larger in many minds than the great international debates on greenhouse gasses, climate change and biodiversity. Because forest land cover uses more water than any other, wide expansion of upstream tree plantations can significantly reduce water yields upon which downstream urban, agricultural and wetlands depend. We consider the economic efficiency and equity (profitability and distributional) consequences of upstream land use change. The ‘environmental services’ of concern in our study are the mean annual quantities and qualities (volumes and salt concentrations) of water flowing from upper parts of a catchment to the downstream interests...
Tipo: Conference Paper or Presentation
Palavras-chave: Experimental economics; Land use; Rival water uses; MBI; Environmental Economics and Policy; Resource /Energy Economics and Policy.
Ano: 2008
URL: http://purl.umn.edu/6249

Enquete sur la Sécurité Alimentaire : Phase I;  Production Agricole et Utilisation des terres Saison 2000A
Provedor de dados: 31
Autores: Mpyisi,   Edson; Nyarwaya,   Jean Baptiste; Shingiro,   Emmanuel; Clay,   Daniel C.; Kelly,   Valerie A.
REPUBLIQUE RWANDAISE MINISTERE DE L’AGRICUTURE, DE L’ELEVAGE ET DES FORETS;  Food Security Research Project (FSRP) et Division des Statistiques Agricoles (DSA)
Tipo: Report
Palavras-chave: Food security; Food policy; Rwanda; Agricultural production; Land use; Crop Production/Industries; Livestock Production/Industries; Q18.
Ano: 2000
URL: http://purl.umn.edu/55784

AMENITY BENEFITS AND PUBLIC POLICY: AN APPLICATION TO THE CONNECTICUT DAIRY SECTOR
Provedor de dados: 31
Autores: Lopez,   Rigoberto A.; Altobello,   Marilyn A.; Shah,   Farhed A.
This article develops a conceptual framework for analyzing the role of state-level policies towards the dairy sector in the presence of farmland amenity benefits, and applies it to Connecticut.  Milk supply, demand and amenity benefit functions are estimated, and three exogenously determined milk prices are considered.  The empirical findings show, under each price scenario, the extent to which land is underallocated to the dairy sector if amenity benefits are ignored.  Analysis of policy options reveals that a partial production cost subsidy represents the least-cost alternative for attaining the socially optimal solution for the region.
Tipo: Journal Article
Palavras-chave: Amenity benefits; Policy; Dairy; Land use; Land Economics/Use; Livestock Production/Industries.
Ano: 1994
URL: http://purl.umn.edu/15176

A területhasználat néhány változása és következményei a Tisza-tónál
Provedor de dados: 31
Autores: Vasvari,   Agnes; David,   Lorant; Szabo,   Szilard.
A Tisza-tó jelentős változásokat idézett elő a térség életében, módosult a települések térbeli kiterjedése. Ez a fajta térmódosulás a tanulmányban bemutatott ábrákon kiválóan végigkövethető. Sarud, Abádszalók és Tiszafüred esetében egyértelműen megállapítható, hogy a települések térszerkezetének eltolódása a Tisza-tó partján kínálkozó turisztikai lehetőségek hatására következett be. A településkép beépítettségében, új településrészek kialakításában, a település arculatának módosulásában szintén közrejátszott a Tisza-tó léte. A strandok településformáló hatása is jelentős a feléjük vezető lineáris infrastruktúrák fejlődésében, az út mentén lévő telkek árainak felértékelésében és a parton végbemenő változásokban (például Abádszalók).  Az elárasztással...
Tipo: Article
Palavras-chave: Tisza-tó; Területváltozás; Területhasznosítás; Településkép; Turizmus; Tisza Lake; Area change; Land use; Settlement image; Tourism; Community/Rural/Urban Development; Environmental Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/119921

Landscape Maintenance and Farming in the Alps: From Family Firms Up-Keeping to Inter-Institutional Arrangements
Provedor de dados: 31
Autores: de Ros,   Giorgio; Fleury,   Philippe; Magnani,   Natalia; Roque,   Olivier.
This contribution discusses assets and limits of the local/territorial level as a core level to improve the sustainability of agriculture. The focus is on the issue of rural landscape maintenance through farming. Some possible institutional solutions to overcome the difficulties of family farms are examined.  New institutional settings such as the "local group", constituting an interface for the negotiation among different local stakeholders, seem to effectively facilitate the stipulation of local contracts for landscape management. The participation to these contracts requires a change in farmers' identity and a more general re-conceptualization of agricultural and environmental problems as community problems.
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Participatory approach; Rural development; Community/Rural/Urban Development; Land Economics/Use.
Ano: 2005
URL: http://purl.umn.edu/24439

The groundwater economy of Pakistan
Provedor de dados: 31
Autores: Qureshi,   Asad Sarwar; Shah,   Tushaar; Akhtar,   Mujeeb.
Tipo: Working or Discussion Paper
Palavras-chave: Groundwater irrigation; Groundwater extraction; Utilization factor; Electric tubewells; Diesel tubewells; Groundwater economy; Groundwater markets; Groundwater pricing; Crop yield; Crop production; Farmers; Pumps; Irrigated farming; Water resources; Agricultural production; Groundwater development; Land use; Water availability; Farmers; Agribusiness; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Farm Management; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/92662

The Economic Situation of Individual (Family) Farms in Hungary
Provedor de dados: 31
Autores: Burger,   Anna; Szep,   Katalin.
Combined elaboration of the first and second parts of papers prepared for presentation at the IAMO FORUM 2007 Halle, Germany 24-29 June 2007 and the IAAE-EAAE 104th seminar Budapest, Hungary 6-8 September 2007.   In 2003 a research study looked at the position of smallholders; the survey was carried out using questionnaires and interviews. The farms included in the survey were situated in 3 counties in the Southern Great Plain of Hungary and in 3 counties of the western part of the country (Transdanubia). The results of the survey showed that there was a firm tendency of concentration among the Hungarian individual farms. Though their average size is about 3 ha, the number and area of farms over 50 ha size are rapidly growing and taking a significant part...
Tipo: Conference Paper or Presentation
Palavras-chave: Agricultural production; Family farms; Land tenure; Land use; Trade; Finances; Profitability; Consumer/Household Economics; Farm Management.
Ano: 2007
URL: http://purl.umn.edu/9512

The Political Economy of Downzoning
Provedor de dados: 31
Autores: Adelaja,   Adesoji O.; Gottlieb,   Paul D.
“Substantial downzoning” is defined as the exercise of police power to significantly reduce the legally permitted density on undeveloped land in a community. This contentious practice is typically challenged by those who perceive the action to limit their market opportunities (e.g., farmers and developers), their sympathizers, and others who prefer the status quo. Supporters tend to be those who perceive positive benefits (e.g., environmentalists, conservationists, and homeowners) and those who see it as a supplement to other preservation techniques, based on concerns over such things as growing public costs of land acquisition, limited effectiveness of existing alternatives, or the perceived urgency to act to manage growth.   Given the complexity of the...
Tipo: Journal Article
Palavras-chave: Substantial downzoning; Takings; Land use; Growth management; Open space; Political economy; Institutional and Behavioral Economics; Political Economy.
Ano: 2009
URL: http://purl.umn.edu/55865

ECONOMIC ASPECTS OF LAND USE
Provedor de dados: 31
Autores: Bozsik,   Norbert; Magda,   Robert.
The aim of our paper is to show the economic importance of land usage. This topic is very important because land is the basis of industrial, agricultural production, energy and environmental security. The analysis focuses on the relationship between land use and scarcity, sustainability and competitiveness. ------------------------------------------- Cikkünk célja a földhasználat gazdasági jelentőségének bemutatása. Ez a téma azért kiemelt fontosságú, mert a föld az ipari és mezőgazdasági termelés, az energia- és a környezetbiztonság alapja. Az elemzés középpontjában a földhasználat és a korlátozottság, a fenntarthatóság és a verseny¬képesség közti összefüggések állnak.
Tipo: Journal Article
Palavras-chave: Land use; Scarcity; Sustainability; Competitiveness; Földhasználat; Korlátozottság; Fenntarthatóság; Versenyképesség.; Agricultural and Food Policy; Land Economics/Use.
Ano: 2010
URL: http://purl.umn.edu/99206

Ecological Safety Evaluation of Land Use in Ji’an City Based on the Principal Component Analysis
Provedor de dados: 31
Autores: Liu,   Fei-yue; Wang,   Shao-kai.
According to the ecological safety evaluation index data of land-use change in Ji’an City from 1999 to 2008, positive treatment on selected reverse indices is conducted by Reciprocal Method. Meanwhile, Index Method is used to standardize the selected indices, and Principal Component Analysis is applied by using year as a unit. FB is obtained, which is related with the ecological safety of land-use change from 1999 to 2008. According to the scientific, integrative, hierarchical, practical and dynamic principles, ecological safety evaluation index system of land-use change in Ji’an City is established. Principal Component Analysis and evaluation model are used to calculate four parameters, including the natural resources safety index of the land use, the...
Tipo: Journal Article
Palavras-chave: Land use; Ecological safety; Principal Component Analysis; Evaluation; China; Agribusiness.
Ano: 2010
URL: http://purl.umn.edu/93546

Farmland Allocation along the Rural-Urban Gradient: The Impacts of Urbanization and Urban Sprawl
Provedor de dados: 31
Autores: Delbecq,   Benoit A.; Florax,   Raymond J.G.M.
In the vicinity of a city, farmers are confronted with increasing agricultural land prices and rents along the rural-urban gradient, but they concurrently enjoy the advantages associated with proximity to a larger and wealthier consumer base. We hypothesize that farmers transition from low-value, land-intensive \traditional" crops to high-value, labor-intensive \specialized" crops on parcels located closer to urban centers. Once returns to development of a parcel exceed the profits associated with farming, exurban farmers may sell their land for conversion to urban use. Urban pressure in the rural-urban fringe intensifies as cities expand. We differentiate between a gradual process of urban growth (or urbanization) and urban sprawl. Utilizing farmland...
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Urban sprawl; Agriculture; Specialized crops; Spatial econometrics; Community/Rural/Urban Development; Land Economics/Use; C31; O13; Q15; R14.
Ano: 2010
URL: http://purl.umn.edu/61723

World Market Impacts of High Biofuel Use in the European Union
Provedor de dados: 31
Autores: Carriquiry,   Miguel A.; Dong,   Fengxia; Du,   Xiaodong; Elobeid,   Amani E.; Fabiosa,   Jacinto F.; Chavez,   Eddie C.; Pan,   Suwen.
This study examines the world market impact of an expansion in the biofuel sector in the European Union with particular focus on indirect land-use impacts. In the first scenario, an increase of 1 million tonnes oil equivalent (Mtoe) of wheat ethanol use in the European Union expands world land area used in agricultural commodity production by 366,000 hectares, representing an increase of 0.039% in total area. In the second scenario, an increase of 1 Mtoe of rapeseed oil biodiesel use in the European Union expands world land area by 352,000 hectares, representing an increase of 0.038% in total area.  With additional land use somewhat close between the two scenarios, the main difference is the spatial distribution of the sources of additional supply. Because...
Tipo: Working or Discussion Paper
Palavras-chave: Biofuels; Land use; Partial equilibrium model; Rapeseed oil biodiesel scenario; Wheat ethanol scenario.; Agricultural and Food Policy; Demand and Price Analysis; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/91923

Modelling the likely impact of healthy eating guidelines on agriculture in England and Wales
Provedor de dados: 31
Autores: Arnoult,   Matthieu H.; Jones,   Philip J.; Tranter,   Richard B.; Tiffin,   J. Richard; Traill,   W. Bruce.
Household food consumption data is used to estimate likely changes in diet under healthy eating guidelines, and the consequences this would have on the agricultural sector in England and Wales. The first step entails imposing nutrient restrictions on food consumption following dietary recommendations. The resulting diet is then used as a proxy for demand in agricultural commodities, to test the impact of such a scenario on agricultural land use and production. Results of the diet optimisation indicate a severe drop in foods rich in saturated fats and sugar, essentially cheese and sugar-based products, along with lesser cuts in fat and meat products Conversely, consumption of fruit &amp; vegetables, cereals, and flour would increase to meet dietary fibre...
Tipo: Conference Paper or Presentation
Palavras-chave: Dietary guidelines; Land use; Agricultural production; Food Consumption/Nutrition/Food Safety; Land Economics/Use.
Ano: 2008
URL: http://purl.umn.edu/44331

REDUCING NITROGEN LOSSES FROM AGRICULTURAL SYSTEMS: AN INTEGRATED ECONOMIC ASSESSMENT
Provedor de dados: 31
Autores: Hartmann,   Michael; Hediger,   Werner; Peter,   Simon.
The loss of reactive nitrogen from agriculture into the environment is a major threat to the global environment and a challenge for agri-environmental policy. We therefore investigate the problem of reducing nitrogen losses from agriculture into the environment from an economic perspective. Based on a recursive-dynamic linear programming model, our study reveals that the above difficulty is primarily due to the rigidities associated with the nutrientforage cycle and existing production structures. Moreover, we assess the cost and effectiveness of different nitrogen taxes for the case of Switzerland. Our results show that a tax on fertilizers only exhibits the best performance in terms of cost-effectiveness.
Tipo: Conference Paper or Presentation
Palavras-chave: Agri-environmental policy; Integrated assessment; Land use; Nitrogen tax; Environmental Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/7583

Nemzeti kincsünk a vidék!
Provedor de dados: 31
Autores: Magda,   Sandor; Marselek,   Sandor.
Társadalmunk gazdasági fejlődése a természeti erőforrások használatára épül. A földtulajdon és a földhasználati rendszer hatékonysága hazánkban és az EU-ban is a figyelem középpontjában áll. A birtokstruktúra és a földhasználat döntően befolyásolják a gazdálkodás eredményességét. A Kormány a Nemzeti Földalap létrehozásával gátat kíván szabni a földspekulációnak. Vidéken a föld racionális használata megkerülhetetlen.  A kritikus gazdasági helyzetű térségekben a mezőgazdasági tevékenység – mint a megélhetés egyetlen forrása – felértékelődik. Az intenzív kultúrák versenyképességének fokozása mellett kiemelt fontosságú a foglalkoztatás. Indokolt a zöldség-gyümölcstermelés és az állattenyésztés arányának növelése. A mezőgazdaság szerkezetváltása részben az...
Tipo: Article
Palavras-chave: Földtulajdon; Földhasználat; Moratórium; Nemzeti Földalap; Vidék; Land ownership; Land use; Moratorium; National Land Fund; Countryside; The agricultural sector; Agricultural and Food Policy; Land Economics/Use.
Ano: 2011
URL: http://purl.umn.edu/119892

INVESTIGATING THE ECONOMIC AND WATER QUALITY EFFECTS OF THE 2003 CAP REFORM ON ARABLE CROPPING SYSTEMS: A SCOTTISH CASE STUDY
Provedor de dados: 31
Autores: Mouratiadou,   Ioanna; Russell,   Graham; Topp,   Cairistiona; Louhichi,   Kamel.
The 2003 Common Agricultural Policy Reform aimed to promote the socio-economic and environmental sustainability of agricultural systems. An important question is how far the Reform has indeed encouraged farmers to contribute to achieving broad economic and environmental goals. The economic and water resource effects of the Reform have been explored for the case study area of the Lunan catchment, which is typical of Scottish arable cropping areas. Land use data analysis, bio-physical modelling and bio-economic modelling were used in combination to identify the effects of a range of scenarios. The results indicate only small changes in the cropping pattern and associated economic and water quality indicators as a result of the Reform, with the main changes...
Tipo: Conference Paper or Presentation
Palavras-chave: Common Agricultural Policy; Bio-economic modelling; Water; Land use; Scotland.; Agricultural and Food Policy; Research Methods/ Statistical Methods; Q10; Q18; Q25.
Ano: 2008
URL: http://purl.umn.edu/44797

AGRICULTURAL LAND PROTECTION POLICY FOR ALBANIA: LESSONS FROM WESTERN EUROPE, NORTH AMERICA, AND JAPAN
Provedor de dados: 31
Autores: Jacobs,   Harvey M.
This report has been prepared as one effort to assist the Albanian government in formulating a policy approach appropriate to the conditions and culture of their country. The goal of this report is to examine the approach to agricultural land protection in other parts of the world, for the lessons they can provide to Albania. There is little recent literature on the subject of agricultural land protection policies. Most of the articles found in the English-language literature are six to ten years old, and in turn often rely on other sources that are several years older still. Thus, this survey should be viewed as a somewhat dated catalog of policy approaches which have been used at various times in the respective jurisdictions rather than as a statement of...
Tipo: Working or Discussion Paper
Palavras-chave: Land use; Rural--Government policy--Europe Land use; Rural--Government policy--Canada Land use; Rural--Government policy--United States Land use; Rural--Government policy--Japan Land use; Rural--Law and legislation Agriculture and state--Albania Agricultural planning--Albania Land Economics/Use.
Ano: 1997
URL: http://purl.umn.edu/12811

Global Biofuel Expansion and the Demand for Brazilian Land: Intensification versus Expansion
Provedor de dados: 31
Autores: Elobeid,   Amani E.; Carriquiry,   Miguel A.; Fabiosa,   Jacinto F.
We use a spatially disaggregated model of Brazilian agriculture to assess the implications of global biofuel expansion on Brazilian land usage at the regional level. This Brazilian model is part of the FAPRI agricultural modeling system, a multimarket, multi-commodity international agricultural model, used to quantify the emergence of biofuels and to analyze the impact of biofuel expansion and policies on both Brazilian and world agriculture. We evaluate two scenarios in which we introduce a 25% exogenous increase in the global demand for ethanol and one scenario in which we increase global ethanol demand by 50%. We then analyze the impact of these increases in terms of land-use change and commodity price changes particularly in Brazil. In the first...
Tipo: Conference Paper or Presentation
Palavras-chave: Biofuels; Brazil; Land use; Land Economics/Use.
Ano: 2011
URL: http://purl.umn.edu/103798

A földbirtok-politika lehetséges irányai (Az eddigi vita összefoglalása)
Provedor de dados: 31
Autores: Kapronczai,   Istvan.
A „Gazdálkodás” 2010. évi 2. számában vitacikkem jelent meg „A földbirtok-politikaválaszt igénylő kérdései” címen. Ezzel az volt a célom, hogy a témakörrel kapcsolatban felvessek kérdéseket, leírjak megállapításokat, és ezzel egy olyan vitát generáljak, ami fórumot ad a tudományos közélet szereplőinek a megszólalásra, a vélemények ütköztetésére, egymás nézeteinek jobb megértésére, a politika számára javaslatok megfogalmazására. A vitában az agrárgazdaságtan, üzemtan képviselői és mások kifejthették a véleményüket olyan fontos birtokpolitikai kérdésekkel kapcsolatban, mint a földtulajdon, a földhasználat, a földbérlet, a földpiac, a mezőgazdasági üzemszabályozás, a tagosítás, a föld öröklése, a külföldiek földhöz jutása, az állam szerepvállalása és ennek...
Tipo: Article
Palavras-chave: Birtokpolitika; Földtulajdon; Földbérlet; Földhasználat; Üzemszabályozás; Agricultural and Food Policy; Land Economics/Use; Land estate policy; Land ownership; Land lease; Land use; Regulation of agricultural businesses.
Ano: 2011
URL: http://purl.umn.edu/119890

Role of state administration in updating land-estate and farm-size conditions
Provedor de dados: 31
Autores: Fekete-Farkas,   Maria; Molnar,   Jozsef; Szucs,   Istvan.
The structure of land estates and farm-sizes are the basis of a competitive agricultural production, hence these questions belong to the evergreen themes both of theory and practice also on international level. In Central and Eastern European Countries (CEECs), the change of political and economic regime virtually tore into the agriculture in beginning of 1990s, destroying the existing structure of land estates by the privatization, restitutions or restoration of ownership rights resulting in fragmentation of land ownership. Over the past 10-15 years this situation has not undergone any fundamental changes. Due to economic and political situation in the transition countries market forces can not function as primary engine for land consolidation. For that...
Tipo: Conference Paper or Presentation
Palavras-chave: Land estate policy; Land ownership; Land use; Agricultural and Food Policy; Land Economics/Use.
Ano: 2007
URL: http://purl.umn.edu/7829

Developing effective institutions for water resources management:  A case study in the Deduru Oya Basin, Sri Lanka
Provedor de dados: 31
Autores: Somaratne,   Pallewatte G.; Jinapala,   Kiribandage; Perera,   L.R.; Ariyaratne,   Badugodahewa Ranjith; Bandaragoda,   Don Jayatissa; Makin,   I.W.
Tipo: Working or Discussion Paper
Palavras-chave: River basins; Water resource management; Water lifting; Wells; Domestic water; Population; Economic aspects; Income; Irrigation programs; Institutions; Policy; Groundwater; Agricultural development; Fish farming; Pumps; Ecology; Water supply; Drought; Poverty; Land use; Water scarcity; Natural resources; Agricultural production; Cropping systems; Agricultural and Food Policy; Agricultural Finance; Consumer/Household Economics; Crop Production/Industries; Food Security and Poverty; Institutional and Behavioral Economics; Land Economics/Use; Political Economy; Production Economics; Public Economics; Resource /Energy Economics and Policy.
Ano: 2003
URL: http://purl.umn.edu/92665

A globális gazdasági válság és a magyarországi agrárgazdaság kilátásai
Provedor de dados: 31
Autores: Magda,   Sandor; Magda,   Robert.
A tanulmány a globális pénzügyi és gazdasági válság klímaváltozás – fenntart¬hatóság – globalizáció rendszerébe illesztve olyan változásokat javasol – előnyt kovácsolva a kényszerből –, melyek számolnak a tényleges helyzettel és viszonylag kisebb áldozatokkal, valamint kockázattal megvalósíthatók. Ennek lényege tömören a termőföld-hasznosítás tudatos arányváltásai, a foglalkoztatás bővítése, integrációk szervezése és az oktatás korszerűsítése. Ajavasoltak nem veszélyeztetik hazánk élelmiszer-ellátásának biztonságát, de csökkentik az agrárágazatok, a vidék energiaköltségeit, energiafüggőségét, új munkahelyeket teremtenek, javítják a mezőgazdaságból és a vidéken élők anyagi körülményeit, hozzájárulnak az ország energiafüggőségének csökkenéséhez, így a...
Tipo: Journal Article
Palavras-chave: Válság; Földhasználat; Foglalkoztatás; Zöldenergia; Oktatás; Crisis; Land use; Employment; Green energy; Education; Agricultural and Food Policy.
Ano: 2009
URL: http://purl.umn.edu/92424

They Ain’t Making Any More of It: Agricultural Land Use, Conservation, Conflicts, Development and Energy (PowerPoint)
Provedor de dados: 31
Autores: Richardson,   Jesse J., Jr.
Presented to USDA Economists Group, Washington, DC, March 11, 2009
Tipo: Conference Paper or Presentation
Palavras-chave: Agriculture; Land use; Smart growth; Environmental Economics and Policy; Land Economics/Use; Q.
Ano: 2009
URL: http://purl.umn.edu/48183

Aspekte des Gewässerschutzes und der Gewässernutzung beim Anbau von Energiepflanzen - Ergebnisse eines Forschungsvorhabens im Auftrag des Umweltbundesamtes
Provedor de dados: 31
Autores: Nitsch,   Heike; Osterburg,   Bernhard; Buttlar,   Christine von; Buttlar,   Hans-Bernhard von.
Zusammenfassung: Der vorliegende Arbeitsbericht entstand im Rahmen eines Forschungsvorhabens im Auftrag des Umweltbundesamtes und beleuchtet mit dem Thema „Gewässerschutz und Energiepflanzen“ einen Aspekt, der bisher nicht im Fokus der Diskussionen um den Energiepflanzenanbau stand. In dieser Studie wurden relevante Verwertungsketten für die energetische Nutzung von landwirtschaftlicher Biomasse in Deutschland anhand potenzieller Auswirkungen auf die Gewässer bewertet. Mögliche negative Wirkungen auf die Gewässer sind häufig auch aus Klimaschutzgründen relevant. Vorgestellt werden zudem Möglichkeiten des gewässerschonenden Anbaus. Die Analyse stützt sich auf die Auswertung von Literatur sowie schriftlicher und telefonischer Befragungen verschiedener...
Tipo: Report
Palavras-chave: Energiepflanzen; Gewässerschutz; Biogasanlagen; Landnutzung; Steuerungsinstrumente; Energy crops; Water protection; Biogas plants; Regulation instruments; Land use; Crop Production/Industries; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy; K32; Q18; Q24; Q25; Q42.
Ano: 2008
URL: http://purl.umn.edu/103662

A plot of one's own: gender relations and irrigated land allocation policies in Burkina Faso
Provedor de dados: 31
Autores: Zwarteveen,   Margreet Z.
Discusses the potential opportunities and pitfalls of introducing market forces into the process of water allocation. Proposes several preconditions for beneficial privatization of water allocation and argues for a more sophisticated form of analysis than that generally allowed by proponents of basic needs or of free market approaches.
Tipo: Report
Palavras-chave: Women in development; Gender; Land use; Land management; Policy; Female labor; Households; Irrigated farming; Social impact; West Africa; Burkina Faso; Dakiri; Agribusiness; Agricultural and Food Policy; Community/Rural/Urban Development; Consumer/Household Economics; Crop Production/Industries; Farm Management; Food Consumption/Nutrition/Food Safety; Food Security and Poverty; Land Economics/Use; Political Economy; Productivity Analysis; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 1996
URL: http://purl.umn.edu/61114

Policy Implications of a Behavioural Economics Analysis of Land Use Determinants in Rural Scotland
Provedor de dados: 31
Autores: Toma,   Luiza; Sutherland,   Lee-Ann; Barnes,   Andrew Peter; Renwick,   Alan W.; McCrum,   Gillian; Blackstock,   Kirsty.
The paper analyses the land use behaviour of Scottish land managers and the factors influencing it in the current context of the EU rural land use policies. The analysis employs a frequently used behavioural economics method, namely structural equation modelling (SEM). Central to the empirical analysis in this paper is a cross-section database containing data collected in May to June 2009 through telephone interviews of 600 land managers in Scotland. The model tests and estimates the relationships between land use behaviour, i.e., behavioural intentions to change the size of business/holding, and several of its a priori determinants found significant in the scientific literature. The results indicate that a stronger propensity to change size of their...
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Rural policies; Scotland; Structural equation modelling; Land Economics/Use.
Ano: 2011
URL: http://purl.umn.edu/116086

Demand for Urban Forests and Economic Welfare:  Evidence from the Southeastern U.S. Cities
Provedor de dados: 31
Autores: Zhu,   Pengyu; Zhang,   Yaoqi.
This study examines the relationship between urban forests and household income and population density in the 149 cities with populations over 40,000 in nine southeastern states.  Our empirical results show that urban forest percentage across the cities has characteristics of the environmental Kuznets curve.  We find that household income around $39,000 is a threshold that changes the relationship between income and urban forest coverage from negative to positive, whereas the impact of population density on urban forests is just the opposite, from positive to negative when population density is around 180 persons per square kilometer.
Tipo: Journal Article
Palavras-chave: Environmental Kuznets curve; Environmental quality; Income; Land use; Population density; Tree canopy; Community/Rural/Urban Development; Environmental Economics and Policy; Land Economics/Use; C31; Q23; Q56; Q57; R14.
Ano: 2006
URL: http://purl.umn.edu/43758

Estimating the Implicit Value of Crop Stubble as a Barrier to Technology Adoption in Morocco
Provedor de dados: 31
Autores: Magnan,   Nicholas; Larson,   Douglas M.
For mixed cereal-livestock farmers, cereal production provides a bundle of goods. Grain is consumed by the household or sold at market, and crop residues are used as livestock feed. The straw component of crop residue can be bought and sold at market and therefore has a well-established local market price. Crop stubble, the portion of the crop residue left on the ground, is generally not traded and therefore has no market price. Some agricultural technologies require farmers to forgo using crop stubble as feed, and cultivation of high value crops entails sacrificing residue production altogether. In this paper we apply a structural econometric model to household data from Morocco to estimate the implicit value of crop stubble. We use a sample splitting...
Tipo: Conference Paper or Presentation
Palavras-chave: Mixed cereal-livestock systems; Non-market valuation; Land use; Technology adoption; No-till; International Development; Land Economics/Use; Livestock Production/Industries; O33; Q12; Q24.
Ano: 2010
URL: http://purl.umn.edu/60858

Cattle Accumulation and Land Use Intensification by Households in the Brazilian Amazon
Provedor de dados: 31
Autores: Caviglia-Harris,   Jill L.
In developing countries across the globe the impact of livestock on deforestation levels has been profound. This paper explores the role of the cattle industry in household decision making for small landholders in the Brazilian Amazon. Important inquiries raised in the literature are addressed, including the determinants of the co-evolution of deforestation and cattle herds, the possibility of production specialization, and the role of cattle in household livelihoods. Panel data suggest that households have changed focus from crop  introduction to cattle. Empirical models reveal that location, wealth, and education are among the important determinants of production decisions and cattle accumulation. Policy recommendations include a focus on the cattle...
Tipo: Journal Article
Palavras-chave: Latin America; Brazil; Household production; Land use; Cattle; Deforestation; Land Economics/Use; Livestock Production/Industries.
Ano: 2005
URL: http://purl.umn.edu/10233

Land Use Issues: The Last Settler’s Syndrome
Provedor de dados: 31
Autores: Groothuis,   Peter A.
In the last settler’s syndrome, each new settler wants the area to remain as it was on their arrival. Newcomers’ preferences often differ from long-term residents, and conflicts arise. To explore land use issues among various groups, a survey of opinions on mountain views was developed and administered to Watauga County residents in western North Carolina. Watauga County provides an interesting case study, because it is a growing area with an influx of newcomers along with long-time residents. The results suggest that agreements can be achieved on some land use issues, whereas disagreements will arise on others.
Tipo: Journal Article
Palavras-chave: Billboards; Contingent valuation; Land use; Scenic amenities; Wind energy; Farm Management; International Development; Land Economics/Use; R14; Q51.
Ano: 2010
URL: http://purl.umn.edu/90668

Spatial Equilibrium in the Bio-Fuel Economy: A Multi-Market Analysis of Trade Distortions in the U.S. and Brazilian Ethanol Sector
Provedor de dados: 31
Autores: Bowser,   William; Khanna,   Madhu; Onal,   Hayri.
Replaced with revised version of paper 08/04/10.
Tipo: Conference Paper or Presentation
Palavras-chave: Bio-fuels; Trade; Land use; Resource /Energy Economics and Policy.
Ano: 2010
URL: http://purl.umn.edu/61636

Land Use Change and Ecosystem Valuation in North Georgia
Provedor de dados: 31
Autores: Ngugi,   Daniel; Mullen,   Jeffrey D.; Bergstrom,   John C.
A model of land allocation at the aggregate watershed level was developed assuming profit/net benefit maximization under risk neutrality. The econometric land use model was analyzed as an equation by equation SURE model as all the independent variables were the same for both equations. In analyzing effect of land use change on water quality, we took year 2005 as our baseline and postulated three land use scenarios. We applied Benefit Transfer techniques to value water quality changes resulting from land use change and estimated lower bounds for WTP to improve water quality to meet the FCB criterion for drinking water supply and fishing waters and BOD (DO) criteria for fishing waters. Water quality modeling revealed that land use change would result in...
Tipo: Conference Paper or Presentation
Palavras-chave: Ecosystem; Economic value; North Georgia; Land use; Land use change; Fish; Water quality; Structural time series; Willingness to pay; Benefit transfer; Forecasting; Vector autoregression; Upper Chattahoochee River; Environmental Economics and Policy; Land Economics/Use.
Ano: 2008
URL: http://purl.umn.edu/6119

South Dakota Agricultural Land Market Trends 1991-2011: The 2011 SDSU South Dakota Farm Real Estate Survey
Provedor de dados: 31
Autores: Janssen,   Larry; Pflueger,   Burton.
Agricultural land values and cash rental rates in South Dakota, by region and by state, are primary topics of this report. The target audience are farmers and ranchers, landowners, ag professionals (lenders, rural appraisers, professional farm managers), and policy makers interested in ag land market trends.  This report contains results of the 2011 Farm Real Estate Market Survey, the 21st annual SDSU survey developed to estimate ag land values and cash rental rates by land use in different regions of South Dakota.
Tipo: Report
Palavras-chave: Ag land; Farmland; Acreage; Cropland; Land ownership; Land use; Land tenure; Ranchland; Rental rates; Cash rent; Land Economics/Use; Q15.
Ano: 2011
URL: http://purl.umn.edu/109324

Impact of land use on river basin water balance: a case study of the Modder River Basin, South Africa.
Provedor de dados: 31
Autores: Woyessa,   Y.E.; Pretorius,   E.; van Heerden,   Pieter S.; Hensley,   M.; van Rensburg,   L.D.
Tipo: Report
Palavras-chave: Water resource management; River basins; Climate; Land cover; Land use; Runoff; Water harvesting; Farmers’ attitudes; Crop production; South Africa; Modder River Basin; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Land Economics/Use; Production Economics; Productivity Analysis.
Ano: 2006
URL: http://purl.umn.edu/91819

The Quantitative Analysis of Land Use Structure Characteristics of County in Mountainous Areas in Sichuan Province of China-A Case Study of Rong County
Provedor de dados: 31
Autores: Zhou,   Wei; Wang,   Chen; Song,   Xing; Deng,   Liang-ji.
Based on me data concerning detailed survey on land in the year 2009 and land change in the year 2010 in Rong County, a mountainous region of Sichuan Province, by using quantitative geographical model, we conduct quantitative analysis of the status quo of land use in Rong County in terms of land use diversification, land use centralization, land use combination type, land use geographic significance and comprehensive use degree of land use. m e results show some characteristics as follows. Firstly, land use in study area displays prominent characteristic of diversification: there is a high degree of completeness land use type; there is a great similarity among towns. Secondly. there is limited combination number of land use type; mostly the combination...
Tipo: Journal Article
Palavras-chave: Land use; Quantity structure; Quantitative analysis; Rong County; Mountainous area of Sichuan Province; China; Agribusiness.
Ano: 2011
URL: http://purl.umn.edu/117249

Managing Conflict Over Natural Resources in Greater Kordofan, Sudan: Some Recurrent Patterns and Governance Implications
Provedor de dados: 31
Autores: Siddig,   El Fatih Ali; El-Harizi,   Khalid; Prato,   Bettina.
Despite the 2005 Comprehensive Peace Agreement, which brought to an end 20 years of civil war in the Sudan, this country continues to experience smaller-scale conflicts, particularly around access to and control of natural resources. Some observers lay the blame for this on ethnopolitical or tribal divisions. However, this paper argues that there are a variety of factors at play behind these conflicts, notably the combination of resource scarcity with a crisis of governance that is particularly evident in transitional areas like the Kordofan region. To gain a sense of the range of conflicts around natural resources in Kordofan, the authors reviewed existing records such as government archives; conducted interviews with politicians, federal and state...
Tipo: Working or Discussion Paper
Palavras-chave: Conflict management; Natural resource management; Small farmers; Land use; Livelihoods; Public spending; Infrastructure; Property rights; Governance; Sustainability; Sudan; East Africa; Resource /Energy Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/42402

Water-resource and land-use issues
Provedor de dados: 31
Autores: Calder,   Ian R.
This paper reviews perceived notions of the relationships between catchment land use and hydrology and explores whether much of the widely disseminated folklore, so often inextricably linked with issues of land use, is based on myth or reality. Gaps in our knowledge of the underlying processes in relation to land use and hydrology are identified. Our ability to apply this knowledge at different scales ranging from the plot to the catchment and regional scales are discussed and specific examples are drawn from Indian and African case studies. Methods for linking spatially distributed land-use hydrological models with economics and ecology through decision support systems are outlined and proposed as a framework for the integrated management of land and...
Tipo: Book
Palavras-chave: Water resource management; Water use; Case studies; Catchment areas; Land use; Hydrology; Models; Evaporation; Soil moisture; Decision support tools; Runoff; Flow; Forestry; Deforestation; Erosion; Rain; Environmental Economics and Policy; Land Economics/Use.
Ano: 1998
URL: http://purl.umn.edu/113610

The Global Supply and Demand for Agricultural Land in 2050: A Perfect Storm in the Making?
Provedor de dados: 31
Autores: Hertel,   Thomas W.
2010 AAEA Presidential Address; forthcoming in January 2011 AJAE in shortened version.
Tipo: Conference Paper or Presentation
Palavras-chave: Global agriculture; Land use; Projections; Population; Yields; Urbanization; Biodiversity; Water; Climate change; Agricultural and Food Policy; Consumer/Household Economics; Demand and Price Analysis; Environmental Economics and Policy; Food Consumption/Nutrition/Food Safety; International Development; International Relations/Trade; Land Economics/Use; Productivity Analysis; Research and Development/Tech Change/Emerging Technologies; Q11; Q15; Q16; Q17.
Ano: 2010
URL: http://purl.umn.edu/92639

PRESERVATION OR DEVELOPMENT: COMPETING USES OVER THE FUTURE OF FARMLAND IN URBANIZING AREAS
Provedor de dados: 31
Autores: Nickerson,   Cynthia J.; Bockstael,   Nancy E.
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Farmland preservation; Competing risks models; Multinomial logit models; Resource /Energy Economics and Policy.
Ano: 2001
URL: http://purl.umn.edu/20703

THE MEDIATION OF VARIANCE CONFLICTS: AN EMPIRICAL EVALUATION
Provedor de dados: 31
Autores: Duke,   Joshua M.; Jost,   Ryan P.
Since 1982, the New Castle County Superior Court in Delaware has promoted mediation, which attempts to resolve filed conflicts prior to trial. This paper evaluates how spatial land-use conflicts channel through mediation and litigation. Data suggest that mediations fail because one of the key disputing parties does not play a direct role in mediation and litigation. The data then inform a predictive model of litigated outcomes in which disputants share in the responsibility for conflict. By alleviating some of the uncertainty of litigation and proposing win-win, mediated outcomes, the model may be used facilitate future mediations.
Tipo: Working or Discussion Paper
Palavras-chave: Mediation; Litigation; Variance; Land use; Conflict resolution; Zoning; Land Economics/Use.
Ano: 2000
URL: http://purl.umn.edu/15833

Spatially Optimal Habitat Management For Natural Pest Control Services
Provedor de dados: 31
Autores: Zhang,   Wei; van derr Werf,   Wopke; Swinton,   Scott M.
The control of crop pests by their natural enemies represents an important ecosystem service that maintains the stability of agricultural systems and has the potential to mitigate pest control costs. Recently, there has been growing interest in enhancing natural control services via habitat management that provides resources for adult natural enemies, such as food and shelter. Management of natural enemy populations has received little attention in the economic literature on pest control. Most such prior studies have explored optimal chemical-based pest management. One recent paper developed a threshold-based pesticide decision rule to account for the presence of natural enemies. However, no prior studies have investigated economically optimal spatial...
Tipo: Conference Paper or Presentation
Palavras-chave: Ecosystem services; Biological control; Natural enemies; Habitat management; Soybean aphid; Spatial optimization; Land use; Environmental Economics and Policy.
Ano: 2007
URL: http://purl.umn.edu/43030

SPATIAL DEVELOPMENTS OF HUNGARIAN AGRICULTURE IN THE TRANSITION: THE CASE OF CROP PRODUCTION
Provedor de dados: 31
Autores: Ferto,   Imre.
The paper investigates spatial changes in cultivation and land use of wheat, maize and oilseed in Hungarian agriculture using different methods to measure these changes. The results suggest that spatial structure of crop productions has remained fairly stable during analysed period. The spatial concentration increased significantly for wheat and maize production and maize land use, whilst the changes were not significant for other cases. Estimates confirm the presence of spatial autocorrelation for all cases. The degree of spatial autocorrelation has no unambiguous pattern over time, except for maize production. Finally, we have not found significant relationship measured by PSE index between agricultural support and spatial concentration, but estimates...
Tipo: Working or Discussion Paper
Palavras-chave: Agricultural production; Land use; Spatial analysis; Hungary; Agribusiness; Community/Rural/Urban Development; Crop Production/Industries; International Development; Land Economics/Use; Q13; Q18.
Ano: 2007
URL: http://purl.umn.edu/90871

Wildland Fire Hazard and Urban Development Pattern: Why California Civil Code 1103 Fails to Protect Households from Wildfires
Provedor de dados: 31
Autores: Xu,   Wenchao; Wu,   JunJie.
Recent years have seen mass casualties and severe property damage caused by wildland fires. With increasing housing development in natural-amenity-rich fire-prone areas, human activities not only exert intense pressures on local ecosystems, but also increase difficulties for wildland fire suppression. To cope with wildland fire threats and protect life and property from wildfire, a new California Natural Hazard Disclosure Law (California Civil Code Sec. 1103) went into effect in 1998. Information disclosure required by Sec. 1103 and its related laws is expected to enhance the efficiency of market allocation of land and developments in hazardous areas, making land price and development pattern better reflect the benefit and risk of living in the natural...
Tipo: Conference Paper or Presentation
Palavras-chave: Wildfire; Land use; Urban development pattern; Income mix; Natural amenity; Community/Rural/Urban Development; Land Economics/Use; Resource /Energy Economics and Policy; Risk and Uncertainty.
Ano: 2009
URL: http://purl.umn.edu/49428

AN AGENDA FOR THE STUDY OF LAND USE, WILDERNESS DESIGNATION, AND RESOURCE REGULATION IN THE AMERICAN WEST
Provedor de dados: 31
Autores: Batabyal,   Amitrajeet A.
Atemporal and intertemporal use of public lands, the determination of optimal levels of wilderness designation and habitat preservation, and the appropriate regulation of natural resources have all been "hot button" issues in the American West for quite some time now. In this paper, I propose and describe a research agenda which promises to yield interesting and useful new policy insights into these fractious resource issues.
Tipo: Working or Discussion Paper
Palavras-chave: Land use; Wilderness; Regulation; Research; Agenda; Land Economics/Use; Resource /Energy Economics and Policy; B41; Q20; Q25.
Ano: 1995
URL: http://purl.umn.edu/28360

Land Use and Remedy Selection: Experience from the Field - The Fort Ord Site
Provedor de dados: 31
Autores: Wernstedt,   Kris; Hersh,   Robert.
In September of 1994, the Army closed the Fort Ord Military Reservation, a Superfund site of some 28,000 acres located in Monterey County, California. Under the Base Closure and Realignment Act, nearly all of this land will be transferred to federal and state entities and to a number of cities of the Monterey peninsula that border the base. A good deal of this property is valuable real estate -- coastal dunes, golf courses, and barracks that can be converted to apartments or dormitories. For the beneficiaries of these property transfers the Fort Ord cleanup is a modern day gold rush that is taking place as part of a Superfund cleanup. What effect have economic development pressures had on the cleanup process and on decisions about cleanup standards? This...
Tipo: Working or Discussion Paper
Palavras-chave: Superfund; Land use; Economic development; Land Economics/Use; Q24; Q28; R52.
Ano: 1997
URL: http://purl.umn.edu/10847

The impact of large-lot zoning and open space acquisition on home building in rural communities
Provedor de dados: 31
Autores: Gottlieb,   Paul D.; O'Donnell,   Anthony; Rudel,   Thomas; O'Neill,   Karen; McDermott,   Melanie.
Local governments in the United States use a wide range of tools to preserve rural landscapes. Some of these tools, like the purchase or transfer of development rights, are generally welcomed by farmers and other large landowners. Other tools, like increasing the minimum lot size in a town’s agricultural zone, are more controversial because they are believed to have negative effects on landowner wealth.  In this contentious policy environment, it would be useful to know which land use tools actually work to control residential growth, thus achieving the consensual objective of rural preservation.  It is reasonable to suppose that large-lot zoning and open space preservation will both reduce the number of homes in a community when it is fully developed....
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Farmland preservation; Zoning; Housing; Community/Rural/Urban Development; Land Economics/Use; R52; R14; R31.
Ano: 2009
URL: http://purl.umn.edu/49310

Evaluation of the Conservation Reserve Program: Disaggregate slippage
Provedor de dados: 31
Autores: Uchida,   Shinsuke.
Among multiple slippage effects potentially generated in voluntary land retirement programs, this study attempts to identify one unique source of slippage. Specifically, I examine slippage caused by within-a-farm land conversion from uncultivated land to cropland. With the U.S. Agricultural Census farm-level longitudinal data on land use and enrollment in the Conservation Reserve Program (CRP), I find that an average partial-farm CRP participant converts 25% of noncropland to cropping activities as a consequence of CRP enrollment. Also, an estimated slippage rate varies across farm types and regions. In particular, farms with relatively inelastic crop acreage supply lead to more slippage. Knowledge about the mechanisms through which slippage occurs should...
Tipo: Conference Paper or Presentation
Palavras-chave: Conservation Reserve Program; Land use; Land conservation; Slippage.; Agricultural and Food Policy; Land Economics/Use; Q15; Q18; Q24; Q58.
Ano: 2011
URL: http://purl.umn.edu/103612

Projecting Supply and Demand for Land in the Long Run
Provedor de dados: 31
Autores: Golub,   Alla A.; Hertel,   Thomas W.; Sohngen,   Brent.
The goal of this work is to investigate land-use change at the global scale over the long run – particularly in the context of analyzing the fundamental drivers behind land-use related GHG emissions. For this purpose, we identify the most important drivers of supply and demand for land. On the demand side, we begin with a dynamic general equilibrium (GE) model that predicts economic growth in each region of the world, based on exogenous projections of population, skilled and unskilled labor and technical change. Economy-wide growth is, in turn, translated into consumer demand for specific products using an econometrically estimated, international cross-section, demand system that permits us to predict the pattern of future consumer demands across the...
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Climate change policy; Baseline; General equilibrium; Agro-ecological zones; C68; R14; Q24; Land Economics/Use.
Ano: 2007
URL: http://purl.umn.edu/9910

Forest Conservation and Slippage: Evidence from Mexico's National Payments for Ecosystem Services Program
Provedor de dados: 31
Autores: Alix-Garcia,   Jennifer Marie; Shapiro,   Elizabeth N.; Sims,   Katharine R.E.
Incentive-based programs to reduce deforestation are expected to play an increasingly important role in global efforts to protect ecosystems and sequester carbon but their environmental effectiveness is not clear. We investigate program effectiveness and slippage in the context of Mexico's national payments for hydrological services program, which pays private and communal landowners to maintain forest cover on enrolled lands. To measure program impacts, we use matched controls drawn from the program applicant pool to establish counterfactual deforestation rates in the absence of payments. We find statistically significant but small to moderate avoided deforestation impacts. To examine slippage of deforestation to nonenrolled lands, we develop a model of...
Tipo: Working or Discussion Paper
Palavras-chave: Payments for environmental services; Payments for ecosystem services; Program evaluation; Slippage; Leakage; Incentive-based mechanisms; Mexico; Land use; Deforestation; Environmental Economics and Policy; Q12; Q24; Q57; R14; O13.
Ano: 2010
URL: http://purl.umn.edu/93045

Does Land Use Patterns Matter for Bt-Maize: The Case of Maize Farming System in Kenya
Provedor de dados: 31
Autores: Muhammad,   Lutta; Owuor,   George; De Groote,   Hugo; Kimenju,   Simon Chege.
Population pressures and the need to optimize the use of limited available land has led to increasing cropping affluence levels within the maize agro-ecologies in Kenya, and a shift from large to smallholder intensification and multiple cropping patterns. Using a geographic information system, this study relates cropping patterns, by area share, maize productivity and household incomes across maize agro-ecologies, with the purpose to establish a decision support system for optimizing land allocation and in priority setting for introduction of new technologies such as Bt maize varieties. Results show that land use patterns and maize productivity in maize farming systems differ between agroecological zones. The high potential areas experience high maize...
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Smallholders; Maize production; Food security; Kenya; Crop Production/Industries; Land Economics/Use.
Ano: 2006
URL: http://purl.umn.edu/25609

Future land-use change in the Netherlands: an analysis based on a chain of models
Provedor de dados: 31
Autores: Kuhlman,   Tom; van Tongeren,   Frank W.; Helming,   John F.M.; Tabeau,   Andrzej A.; Gaaff,   Aris; Groeneveld,   Rolf A.; Koole,   Boudewijn; Verhoog,   A. David; Dekkers,   Jasper.
Analyses of the impact of European policies on agricultural change are most often based on agricultural sector models. Such models have their limitations: they cannot specify the interaction between agriculture and the rest of the economy, and their spatial dimension is usually limited. Land use simulation models, on the other hand, usually depend on other models for assessing the demand for land. The consistency of those models with the assumptions and databases of the land use model is often not examined. This article reports on a research project where the links between a macroeconomic model, an agricultural sector model and a land use model were explicitly explored in order to arrive at a consistent model chain. This integrated framework was put to the...
Tipo: Journal Article
Palavras-chave: Land use; CAP; Agricultural policy analyses; Netherlands; Agricultural and Food Policy; Land Economics/Use.
Ano: 2006
URL: http://purl.umn.edu/97190

Food Security Survey: Phase I,  Agricultural Production and Land Use Season 2000A
Provedor de dados: 31
Autores: Edson,   Mpyisi; Jean Baptiste,   Nyarwaya; Emmanuel,   Shingiro; Daniel,   Clay; Valerie,   Kelly A.
REPUBLIC OF RWANDA,  MINISTRY OF AGRICULTURE, ANIMAL RESOURCES, AND FORESTRY,  Food Security Research Project (FSRP) and Division of Agricultural Statistics (DSA)
Tipo: Report
Palavras-chave: Food security; Food policy; Rwanda; Agricultural production; Land use; Food Security and Poverty; Q18.
Ano: 2000
URL: http://purl.umn.edu/55535

Why Are Farmers Going Multifunctional?
Provedor de dados: 31
Autores: Jongeneel,   Roelof A.; Polman,   Nico B.P.; Slangen,   Louis H.G.
The European farm model is aimed at stimulating and facilitating multifunctional agriculture. This paper presents the results of research into the factors determining the adoption of multifunctional activities. In the paper survey results from 495 farms, spread all over the Netherlands, were used. Binomial logit models were estimated for multifunctional activities in general and four specific activities. Trust in the government is an important explaining factor for participation in nature conservation and recreation, however, less important for services and selling products. Location of the farm is important for nature conservation, services, and recreation. Attitude variables are particularly important for participation in nature conservation and day and...
Tipo: Conference Paper or Presentation
Palavras-chave: Multifunctionality; Land use; Agricultural policy; Agricultural and Food Policy; Land Economics/Use; G18.
Ano: 2005
URL: http://purl.umn.edu/24585

The Trade-off Between Bioenergy and Emissions When Land Is Scarce
Provedor de dados: 31
Autores: Kauffman,   Nathan S.; Hayes,   Dermot J.
Agricultural biofuels require the use of scarce land, and this land has opportunity cost. We explore the objective function of a social planner who includes a land constraint in the optimization decision to minimize environmental cost. The results show that emissions should be measured on a per acre basis. Conventional agricultural life cycle assessments for biofuels report carbon emissions on a per gallon basis, thereby ignoring the implications of land scarcity and implicitly assuming an infinite supply of the inputs needed for production. Switchgrass and corn are then modeled as competing alternatives to show how the inclusion of a land constraint can influence life cycle rankings and alter policy conclusions.
Tipo: Conference Paper or Presentation
Palavras-chave: Biofuels; Biomass; Energy policy; Land use; Life cycle analysis; Agricultural and Food Policy; Environmental Economics and Policy; Q16; Q48; Q58.
Ano: 2011
URL: http://purl.umn.edu/103246

URBAN GROWTH AND LAND USE CHANGES IN TIRANA, ALBANIA: WITH CASES DESCRIBING URBAN LAND CLAIMS
Provedor de dados: 31
Autores: Felstehausen,   Herman.
Tirana, Albania's capital city, grew rapidly in size and population following 1991 governmental reforms. Before the 1990s, Tirana was a compact city of 225,000 inhabitants. Most properties were state owned. Privatization of land and buildings opened the city to rapid development, heavy traffic, and booming construction of shops, houses, and squatter settlements. Tirana's metropolitan population grew to more than 600,000; city size increased fivefold. This study focuses on land and building claims, both legal and informal, in the context of emerging markets and newly organized land titling and land records systems. A land market action plan supported by the Albanian government, European Union, Land Tenure Center, and others aims to increase tenure security,...
Tipo: Working or Discussion Paper
Palavras-chave: Land use; Urban -- Albania -- Tirana Land tenure -- Albania -- Tirana Land titles -- Registration and transfer -- Albania -- Tirana City planning -- Albania -- Tirana Land tenure; Urban -- Albania -- Tirana Community/Rural/Urban Development Land Economics/Use.
Ano: 1999
URL: http://purl.umn.edu/12806

Is agricultural zoning exclusionary?
Provedor de dados: 31
Autores: Gottlieb,   Paul D.; Rudel,   Thomas; O'Neill,   Karen; McDermott,   Melanie.
In rapidly suburbanizing areas, minimum lot sizes of ten acres or greater are often used to discourage residential development and to maintain agricultural critical mass.  Because of significant development pressure in these places, there is a good chance these lot size regulations will bind.  Such “down-zoning” often appears alongside the purchase of agricultural and conservation easements that reduce housing development even more.    Whatever the benefits of such policies for agriculture and the environment, they raise obvious concerns about housing supply and affordability.   The issue of affordability should be analyzed at the regional scale, since we would normally expect some high-income, low density enclaves to exist within any metropolitan area....
Tipo: Conference Paper or Presentation
Palavras-chave: Land use; Zoning; Housing; Equity; Community/Rural/Urban Development; Consumer/Household Economics; Land Economics/Use.
Ano: 2011
URL: http://purl.umn.edu/103562

Strategies for Sustainable Land Management  and Poverty Reduction in Uganda
Provedor de dados: 31
Autores: Nkonya,   Ephraim M.; Pender,   John L.; Jagger,   Pamela; Sserunkuuma,   Dick; Kaizzi,   Crammer; Ssali,   Henry.
Poverty reduction is one of the overarching objectives of most of Sub-Saharan Africa and other low-income countries. Accordingly, one of IFPRI’s major research themes focuses on policies and strategies for poverty reduction. This research report contributes knowledge to that theme. It also contributes to IFPRI’s ongoing investigation of policies and strategies that foster broad-based and environmentally sustainable agricultural and rural development. In Uganda, where soil erosion and depletion of soil nutrients are widespread, land degradation is a major cause of declining productivity and increasing poverty. In this study, Ephraim Nkonya and his colleagues measure the relative merits of various household income strategies and land management practices in...
Tipo: Report
Palavras-chave: Land use; Government policy; Uganda; Food supply; Poor; Nutrition; Agriculture and state; Land capability for agriculture; Data processing; Food Security and Poverty; Land Economics/Use.
Ano: 2004
URL: http://purl.umn.edu/37897

A földbirtok-politika választ igénylő kérdései
Provedor de dados: 31
Autores: Kapronczai,   Istvan.
A kérdések széles területet ölelnek fel, ami folytatható a földvédelemmel, a kör-nyezetvédelemmel, a földadó kérdésével stb. A politikának – kompromisszumokkal és megegyezéssel – mielőbb lépnie kell, mert a rendezett birtokviszonyok növelik a földárat, élénkítik a termőföld iránti keresletet. Az emelkedő árak ugyanakkor bővítik a földkínálatot, végeredményben élénkül az egész földpiac. Ez a leghatékonyabb eszköz a termőfölddel kapcsolatos spekulációk visszaszorítására. Van-e azonban esély a megegyezésre? Politikai síkon aligha! Sőt az agrárközgazdász szakma is meglehetősen megosztott a birtok, a föld kérdésében, hisz körein¬ken belül is hatnak az érdekek, a megcsontosodott előítéletek. Mégis szükség van egy szakmai vitára, egy őszinte véleménycserére,...
Tipo: Journal Article
Palavras-chave: Birtokpolitika; Földtulajdon; Földbérlet; Földhasználat; Örökösödés; Land ownership policy; Land ownership; Land lease; Land use; Inheritance; Agricultural and Food Policy; Land Economics/Use; Political Economy.
Ano: 2010
URL: http://purl.umn.edu/99087

Major Uses of Land in The United States, 2002
Provedor de dados: 31
Autores: Lubowski,   Ruben N.; Vesterby,   Marlow; Bucholtz,   Shawn; Baez,   Alba; Roberts,   Michael J.
This publication presents the results of the latest (2002) inventory of U.S. major land uses, drawing on data from the Census, public land management and conservation agencies, and other sources. The data are synthesized by State to calculate the use of several broad classes and subclasses of agricultural and nonagricultural land over time. The United States has a total land area of nearly 2.3 billion acres. Major uses in 2002 were forest-use land, 651 million acres (28.8 percent); grassland pasture and range land, 587 million acres (25.9 percent); cropland, 442 million acres (19.5 percent); special uses (primarily parks and wildlife areas), 297 million acres (13.1 percent); miscellaneous other uses, 228 million acres (10.1 percent); and urban land, 60...
Tipo: Report
Palavras-chave: Land use; Land-use change; Agricultural land; Nonagricultural land; Cropland; Forest-use land; Forestland; Pasture; Rangeland; Rural residential land; Special uses; Urban land; Land Economics/Use.
Ano: 2006
URL: http://purl.umn.edu/7203

The Ethanol Decade:  An Expansion of U.S. Corn Production, 2000-09
Provedor de dados: 31
Autores: Wallander,   Steven; Claassen,   Roger; Nickerson,   Cynthia J.
The recent 9-billion-gallon increase in corn-based ethanol production, which resulted from a combination of rising gasoline prices and a suite of Federal bioenergy policies, provides evidence of how farmers altered their land-use decisions in response to increased demand for corn. As some forecasts had suggested, corn acreage increased mostly on farms that previously specialized in soybeans. Other farms, however, offset this shift by expanding soybean production. Farm-level data reveal that the simultaneous net expansion of corn and soybean acreage resulted from a reduction in cotton acreage, a shift from uncultivated hay to cropland, and the expansion of double cropping (consecutively producing two crops of either like or unlike commodities on the same...
Tipo: Report
Palavras-chave: Agricultural Resource Management Survey (ARMS); Bioenergy; Ethanol; Indirect effects; Land use; Corn production; Environmental impacts; Environmental Economics and Policy; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2011
URL: http://purl.umn.edu/117982

DISTRIBUTION OF ORGANIC CARBON IN DIFFERENT SOIL FRACTIONS IN ECOSYSTEMS OF CENTRAL AMAZONIA
Provedor de dados: 90
Autores: Marques,Jean Dalmo de Oliveira; Luizão,Flávio Jesus; Teixeira,Wenceslau Geraldes; Sarrazin,Max; Ferreira,Sávio José Filgueira; Beldini,Troy Patrick; Marques,Elizalane Moura de Araújo.
Organic matter plays an important role in many soil properties, and for that reason it is necessary to identify management systems which maintain or increase its concentrations. The aim of the present study was to determine the quality and quantity of organic C in different compartments of the soil fraction in different Amazonian ecosystems. The soil organic matter (FSOM) was fractionated and soil C stocks were estimated in primary forest (PF), pasture (P), secondary succession (SS) and an agroforestry system (AFS). Samples were collected at the depths 0-5, 5-10, 10-20, 20-40, 40-60, 60-80, 80-100, 100-160, and 160-200 cm. Densimetric and particle size analysis methods were used for FSOM, obtaining the following fractions: FLF (free light fraction), IALF...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Fractionation; Soil organic matter; Land use; Soil physical fractions.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000100232

Humic Haplustox under different land uses in a high altitude environment in the Agreste region of Pernambuco, Brazil
Provedor de dados: 90
Autores: Araujo,Jane Kelly Silva; Ribeiro,Mateus Rosas; Corrêa,Marcelo Metri; Galindo,Izabel Cristina de Luna; Souza Júnior,Valdomiro Severino de.
The Garanhuns Plateau in the Agreste region of the State of Pernambuco, Brazil is characterized by humid climatic conditions due to orographic rains, unlike the surrounding semiarid region. These soils are subjected to intense agricultural use and are extremely important for the regional economy. This study was carried out in the municipality of Brejão in the Agreste region with the aim of assessing changes in humic Haplustox soils subjected to different land uses. Four plots with different vegetation covers (native forest, secondary shrubby vegetation (capoeira), traditional cropping system, and planted pasture) were selected, and samples were taken from a soil profile and four small pits surrounding it at each site. Physical and chemical properties were...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land use; Highland soils; Humic substances; Aggregate stability; Microbial biomass C.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400029

Occurrence of Yeast Species in Soils under Native and Modified Vegetation in an Iron Mining Area
Provedor de dados: 90
Autores: Moreira,Geisianny Augusta Monteiro; Vale,Helson Mario Martins do.
ABSTRACT Soils of the Quadrilátero Ferrífero are rich in mineral resources, especially gold and iron. Soil management and mining activities greatly impact soil biology. However, studies addressed to the diversity of microorganisms and their ecological role in the recovery of these areas are scarce. This study aimed to assess the yeast occurrence in soils with natural vegetation (Atlantic Forest, neotropical savanna, and iron outcrop) and areas with anthropogenic modifications (Eucalyptus stand and rehabilitated area) in the Quadrilátero Ferrífero region. We isolated and identified a total of 68 yeast. Partial sequencing of the 26S ribosomal gene revealed the presence of six genera: Saitozyma, Pseudozyma, Meyerozyma, Debaryomyces, Lipomyces, and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Diversity; Fungi; Land use; Mining.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832018000100418

Soil quality indicators in a rhodic kandiudult under different uses in northern Parana, Brazil
Provedor de dados: 90
Autores: Kuwano,Biana Harumi; Knob,Adriana; Fagotti,Dáfila Santos Lima; Melém Júnior,Nagib Jorge; Godoy,Leandro; Diehl,Raquel Cátia; Krawulski,Cristina Célia; Andrade Filho,Galdino; Zangaro Filho,Waldemar; Tavares-Filho,João; Nogueira,Marco Antonio.
Sustainable use of soil, maintaining or improving its quality, is one of the goals of diversification in farmlands. From this point of view, bioindicators associated with C, N and P cycling can be used in assessments of land-use effects on soil quality. The aim of this study was to investigate chemical, microbiological and biochemical properties of soil associated with C, N and P under different land uses in a farm property with diversified activity in northern Parana, Brazil. Seven areas under different land uses were assessed: fragment of native Atlantic Forest; growing of peach-palm (Bactrys gasipaes); sugarcane ratoon (Saccharum officinarum) recently harvested, under renewal; growing of coffee (Coffea arabica) intercropped with tree species; recent...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Bioindicators; Land use; Metabolic coefficient; Microbial biomass; Soil enzymes; Soil quality.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000100005

SOIL QUALITY IN RELATION TO FOREST CONVERSION TO PERENNIAL OR ANNUAL CROPPING IN SOUTHERN BRAZIL
Provedor de dados: 90
Autores: Balota,Elcio Liborio; Yada,Ines Fumiko Ubukata; Amaral,Higo Furlan; Nakatani,Andre Shigueyoshi; Hungria,Mariangela; Dick,Richard Peter; Coyne,Mark Steven.
Many forested areas have been converted to intensive agricultural use to satisfy food, fiber, and forage production for a growing world population. There is great interest in evaluating forest conversion to cultivated land because this conversion adversely affects several soil properties. We examined soil microbial, physical, and chemical properties in an Oxisol (Latossolo Vermelho distrófico) of southern Brazil 24 years after forest conversion to a perennial crop with coffee or annual grain crops (maize and soybeans) in conventional tillage or no-tillage. One goal was to determine which soil quality parameters seemed most sensitive to change. A second goal was to test the hypothesis that no-tillage optimized preservation of soil quality indicators in...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land use; Tillage; Coffee; Biological activity; Potential mineralization; Aggregate stability.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000401003

Phosphorus Forms in Sediments as Indicators of Anthropic Pressures in an Agricultural Catchment in Southern Brazil
Provedor de dados: 90
Autores: Tiecher,Tales; Schenato,Ricardo Bergamo; Santanna,Maria Alice; Caner,Laurent; Santos,Danilo Rheinheimer dos.
ABSTRACT Phosphorus (P) fractionation is a suitable procedure to ascertain P lability in sediments and is able to distinguish sources of P under different soil management practices in a catchment. Brazil is the second largest producer and the largest exporter of tobacco in the world. Inadequate management of cultivated areas exposes the soil to erosion processes, accelerating the transfer of sediment and P to water bodies, which leads to eutrophication. We evaluated the P forms in suspended sediments collected at two rainfall events in the stream of a small catchment in the state of Rio Grande do Sul. The samples were collected upstream and downstream areas in three sub-catchments with different degrees of anthropogenic pressure and in three phases of the...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Phosphorus fractionation; Watershed; Nonpoint source pollution; Eutrophication; Land use.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832017000100431

SOIL ORGANIC MATTER FRACTIONS IN PRESERVED AND DISTURBED WETLANDS OF THE CERRADO BIOME
Provedor de dados: 90
Autores: Sousa,Ricardo Fernandes de; Brasil,Eliana Paula Fernandes; Figueiredo,Cícero Célio de; Leandro,Wilson Mozena.
Veredas are humid tropical ecosystems, generally associated to hydromorphic soils and a shallow water table. The soils of these ecosystems are affected by the use of the areas around these veredas. The objective of this study was to determine soil organic matter (SOM) fractions in veredas adjacent to preserved (native savanna) and disturbed environments (agricultural areas and pastures) in the Cerrado biome. Soil samples were collected from the 0-10 and 10-20 cm layers along reference lines drawn along the relief following the upper, middle and lower positions of one of the slopes, in the direction of the draining line of the vereda. The soil analysis determined: total soil OC, total nitrogen and C:N ratio; C and N contents and C:N ratio in particulate and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydromorphic soils; Land use; Particulate fraction; Humic substances; Organic carbon.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832015000100222

Physical quality of an oxisol under different uses
Provedor de dados: 90
Autores: Mota,Francisco Ocian Bastos; Ness,Ricardo Luiz Lange; Mota,Jaedson Cláudio Anunciato; Clemente,Celso Augusto; Sousa,Sebastião Cavalcante.
The use of a soil induces changes in the physical properties according to the management, tillage intensity and type of crop. The objective of this work was to measure the alterations of some of the soil physical properties and evaluate the physical quality by the S index, an indicator proposed by Dexter (2004), comparing the land uses: eucalyptus plantations at different ages, grazing pasture, annual crops, and an area of preserved secondary vegetation with an area of preserved native forest (National Forest Araripe - NFA) as control. The study was carried out on an Oxisol on the Fazenda Redenção, in Jardim, State of Ceará, Brazil. The experiment was arranged in a completely randomized design with seven treatments and three replications in the layers...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land use; Soil physical properties; S index; Soil degradation; Araripe Plateau - Brazil.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832012000600017

Physical properties of dystrophic Red Latosol (Oxisol) under different agricultural uses
Provedor de dados: 90
Autores: Tavares Filho,João; Barbosa,Graziela Moraes de Cesare; Ribon,Adriana Aparecida.
Obtaining information about soil properties under different agricultural uses to plan soil management is very important with a view to sustainability in the different agricultural systems. The aim of this study was to evaluate changes in certain indicators of the physical quality of a dystrophic Red Latosol (Oxisol) under different agricultural uses. The study was conducted in an agricultural area located in northern Paraná State. Dystrophic Red Latosol samples were taken from four sites featuring different types of land use typical of the region: pasture of Brachiaria decumbens (P); sugarcane (CN); annual crops under no-tillage (CAPD); and native forest (permanent conservation area) (control (C)). For each land use, 20 completely randomized, disturbed and...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land degradation; Land use; Grazing; Sugarcane; No-tillage farming.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832010000300034

Growth, water use and efficiency of forage cactus sorghum intercropping under different water depths
Provedor de dados: 91
Autores: Lima,Lucivania R.; Silva,Thieres G. F. da; Jardim,Alexandre M. da R. F.; Souza,Carlos A. A. de; Queiroz,Maria G. de; Tabosa,José N.
ABSTRACT The effects of the forage cactus sorghum configuration and different irrigation depths on the growth, water use and efficiency of the forage cactus production system were investigated in this study. The experiment was conducted in the municipality of Serra Talhada, Pernambuco State, Brazil, between the years 2012 and 2013. Forage cactus was distributed in randomized blocks with factorial scheme and four replicates, in split plots (5 x 2), with five irrigation depths (0, 8.75, 17.5, 26.25 and 35% of the reference evapotranspiration, ET0) and two cropping systems (forage cactus monocropping and forage cactus sorghum intercropping). Crop evapotranspiration was calculated through soil water balance. The ratio between crop and reference...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Actual evapotranspiration; Drip irrigation; Land use; Semi-arid region.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-43662018000200113

Paleolimnological studies of Laguna Chica of San Pedro (VIII Region): Diatoms, hydrocarbons and fatty acid records
Provedor de dados: 97
Autores: URRUTIA,ROBERTO; KOEN,SABBE; CRUCES,FABIOLA; POZO,KARLA; BECERRA,JOSE; ARANEDA,ALBERTO; VYVERMAN,WIM; PARRA,OSCAR.
Diatom, hydrocarbons and fatty acid sedimentary records were used for reconstructing the recent (last 150 years) palaeolimnological history of Laguna Chica of San Pedro (Concepción, VIII Región, Chile). Cluster analyses (Constrained Incremental Sum of Squares) on the diatom data revealed three distinct periods. The first period (1883-1940's) showed a pronounced increase in sedimentation rate and a slight increase in organic matter accumulation. In this period, eutrophic species (Aulacoseira granulata and Staurosira construens) became increasingly dominant. From the 1940s until the 1970s the diatom signal is more equivocal: after the initial decrease in the relative abundance of A. granulata and S. construens their numbers fluctuate without a clear pattern....
Tipo: Journal article
Palavras-chave: Diatoms; Hydrocarbons; Fatty acids; Paleolimnology; Land use.
Ano: 2000
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0716-078X2000000400014

The economic and environmental impact of trade in forest reserve obligations: a simulation analysis of options for dealing with habitat heterogeneity
Provedor de dados: 123
Autores: Chomitz,Kenneth M.; Thomas,Timothy S.; Brandão,Antônio Salazar P.
A tradeable development rights (TDR) program focusing on biodiversity conservation faces a crucial problem: defining which areas of habitat should be considered equivalent. Restricting the trading scope to a narrow area could boost the range of biodiversity conserved but could increase the opportunity cost of conservation. The issue is relevant to Brazil, where TDR-like policies are emerging. Long-standing laws require each rural property to maintain a legal forest reserve (reserva legal) of at least 20%, but emerging policies allow some tradeability of this obligation. This paper uses a simple, spatially explicit model to simulate a hypothetical state-level program. We find that wider trading scopes drastically reduce landholder costs of complying with...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Brazil; Conservation; Environment; Land use; Minas Gerais; Tradeable development rights.
Ano: 2005
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032005000400003

Modelling Beef and Dairy Sectors' Productivities and their Effects on Land Use Change in Brazil
Provedor de dados: 123
Autores: Harfuch,Leila; Nassar,André Meloni; Zambianco,Wilson Milani; Gurgel,Angelo Costa.
Abstract: This paper aims to develop new methodology for the Brazilian beef and dairy sectors incorporating different levels of productivities in the Brazilian Land Use Model (BLUM), analyzing land use dynamics. Several datasets combinations were used and supply and demand equations were re-estimated. Historical database developed in this paper shows that the livestock sector increased productivity levels per hectare (in both beef and dairy sectors), being an important land releaser for other agricultural uses. Even in frontier regions, the occupation process was followed by productivity increase. When technologies were implemented in BLUM, results show that there were significant differences on land use in 2030, reducing land for pasture compared to BLUM...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land use; Beef and dairy; Production technologies; Economic modeling.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-20032016000200281

SOIL GLYCOSIDASE ACTIVITIES AND WATER SOLUBLE ORGANIC CARBON UNDER DIFFERENT LAND USE TYPES
Provedor de dados: 127
Autores: Ma,X. Z; Chen,L. J; Chen,Z. H; Wu,Z.J; Zhang,L.L; Zhang,Y.L.
The purpose of this study was to measure the effects of different land uses on soil glycosidase activities (a- and (&amp;#946;-glucosidase, &amp;#945;- and (&amp;#946;-galactosidase), water soluble organic carbon (WSOC) and their relationships. Glycosidase activities showed significant differences under different land use types, the highest one was woodland. (&amp;#946;-glucosidase had the highest activity among the four glycosidases. The activities of these glycosidases decreased with increasing soil depth, being all significantly affected by change of soil depth. Except grassland, the four glycosidase activities intercorrelated each other. Woodland had the highest content of WSOC in the soil depth of 0-20 cm and at increasing soil depth, WSOC content...
Tipo: Journal article
Palavras-chave: Glycosidase activities; Water soluble organic carbon; Land use; Soil depth.
Ano: 2010
URL: http://www.scielo.cl/scielo.php?script=sci_arttext&pid=S0718-27912010000200001

Aggregate distribution, stability and release of water dispersible clay for two subtropical Oxisols
Provedor de dados: 63
Autores: Azevedo,Antonio Carlos de; Schulze,Darrel Gene.
The behavior of a soil regarding the dispersion and aggregation of its particles is very important for the development of environmental and agricultural soil functions. This study was conducted to determine how aggregate distribution and stability are impacted by land uses and how the release of Water Dispersible Clay (WDC) relates to disaggregation in Oxisols from subtropical Brazil. Samples from two Oxisols, collected at three depths from sites under no-tillage (NT), conventional tillage (CT) and native vegetation (NV) land uses were shaken in 250 mL plastic bottles for intervals up to 27 hours. The mass of aggregates was measured in five size classes ranging from 53 to 2000 µm. Most aggregates larger than 500 mm disappeared during the first 7.5 hours of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land use; Disaggregation; Soil tillage; Soil management.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000100006

Threats to the Cerrado remnants of the state of São Paulo, Brazil
Provedor de dados: 63
Autores: Durigan,Giselda; Siqueira,Marinez Ferreira de; Franco,Geraldo Antonio Daher Correa.
Patches of natural vegetation remaining in landscapes occupied by man are continuously under threat due to the edge effects and also to land use types around these remnants. The most frequent threats and land use types in the vicinity of 81 Cerrado (tropical savanna type) fragments in the State of São Paulo, Brazil, were analyzed in order to verify if the frequency of every type of disturbance to the natural ecosystem depends on the neighboring land use. The hypothesis of the study assumes that environmental threats are correlated with land use around protected areas. From the 81 areas, the most frequent human-induced land cover types around the Cerrado remnants were: pasture (recorded in 78% of the areas), sugarcane plantations (26%), roads (19%), annual...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Savanna; Conservation; Impact; Fragmentation; Land use.
Ano: 2007
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-90162007000400006

อิทธิพลของการใช้ที่ดินต่อสมบัติของดินในพื้นที่อ่างขาง จังหวัดเชียงใหม่
Provedor de dados: 106
Autores: Naruemol Wasuwan.
Thesis (M.Sc. in Agriculture)
Tipo: PhysicalObject
Palavras-chave: Soil properties; Soil conservation; Soil management; Land use; Ang Khang area; Chiang Mai province; การใช้ที่ดิน; การอนุรักษ์ดิน; การจัดการดิน; คุณสมบัติของดิน; พื้นที่อ่างขาง; จ.เชียงใหม่.
Ano: 2008
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5472

ผลของการพัฒนาบนที่สูงต่อลักษณะอากาศใกล้ผิวพื้นบริเวณดอยอ่างขาง จังหวัดเชียงใหม่
Provedor de dados: 106
Autores: Raiwin Rattanapatipong.
Thesis (M.Sc. in Environmental Science)
Tipo: PhysicalObject
Palavras-chave: The Royal Agricultural Station Angkhang; Chiang Mai; Doi Angkhang; Climate; Land use; การพัฒนาที่สูง; การใช้ที่ดิน; ลักษณะอากาศ; ลักษณะอากาศใกล้ผิวดิน; สถานีเกษตรหลวงอ่างขาง.
Ano: 1995
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/3068

การจัดระบบการปลูกพืชร่วมกับข้าวโพดไร่เพื่อประสิทธิภาพการใช้ดินสูงสุดในเขตเกษตรอาศัยน้ำฝน
Provedor de dados: 106
Autores: Anna Saimaneerat; Supranee Ngamprasitthi; Sangkhae Nawanich; Sukum Chotechuangmanirat.
6 tables
Palavras-chave: Corn; Maize; Cropping systems; Rainfed area; Land use; Field corn; ข้าวโพด; ระบบการปลูกพืช; การใช้ที่ดิน; เกษตรอาศัยน้ำฝน; ประสิทธิภาพ.
Ano: 2004
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/4215

การจัดเขตศักยภาพการปลูกข้าวของประเทศไทย: ทางเลือก โอกาส และความท้าทาย
Provedor de dados: 106
Autores: Chitnucha Buddhaboon; Benjamas Rossopa; Piyaphan Srikum; Sommai Lertna; Waraporn Vongboon; Nopadon Prayoonsook; Duangporn Witoonjit; Yupin Rammanee; Kingkaew Kunket.
Zoning of rice production potential in Thai rice area has been conducted from 2000 to 2013. The objectives of the project were 1) to define the potential of rice area in Thailand in term of soil suitability and productivity, 2) to create map of rice production zoning with appropriate recommendation. Methodology to run the project consisted of secondary data collection, field survey, crop cutting, field experiment, and mapping. The research found that total of 12.6 M ha of rice areas in Thailand it was suitable for rice production about  8.2 M ha. Rice soil was more fertile in the central plain as compared to other region. Most of the farmer grew recommended rice varieties. There were three major groups of growing rice variety, jasmine rice, white rice, and...
Tipo: PhysicalObject
Palavras-chave: Rice; Zoning area; Rice production; Alternative; Land capability; Agricultural potential; Land use; Production technology; Soil fertility; GIS; ข้าว; พื้นที่การจัดเขต; การผลิตข้าว; ศักยภาพการผลิต; การทำแผนที่; การใช้ที่ดิน; ความอุดมสมบูรณ์ของดิน; เทคโนโลยีการผลิต; ข้าวหอม; ข้าวขาว; ข้าวเหนียว; การเพิ่มผลผลิต.
Ano: 2013
URL: http://anchan.lib.ku.ac.th/agnet/handle/001/5709

Comunidade de Odonata (Insecta) em áreas naturais de Cerrado e monocultura no nordeste do Estado de São Paulo, Brasil: relação entre o uso do solo e a riqueza faunística
Provedor de dados: 104
Autores: Ferreira-Peruquetti,Patrícia S.; Fonseca-Gessner,Alaíde A.
Stream ecosystems may be strongly influenced in different ways by land use. The effects of land-cover patterns on Odonata community were studied in eight streams and seven lakes-dams of northeastern São Paulo State. The pattern analyzed was monoculture (sugar cane) vs. nature reserve in terms of Odonata species richness and similarity. Eighty-five Odonata species were sampled. The species richness was higher in the monoculture (33 species) than nature reserve (30 species) and 22 species were common to both areas. There was not verified relationship between land use and physical or chemical characteristics of the streams or lakes-dams water. These results suggest that some Odonata species are benefited and other affected by anthropogenic actions, although...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Cerrado; Diversity; Land use; Odonata; Species richness.
Ano: 2003
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752003000200008

Identification and characterization of deforestation hot spots in Venezuela using MODIS satellite images
Provedor de dados: 36
Autores: Pacheco,Carlos Eduardo; Aguado,María Inmaculada; Mollicone,Danilo.
Land cover changes over time as a result of human activity. Nowadays deforestation may be considered one of the main environmental problems. The objective of this study was to identify and characterize changes to forest cover in Venezuela between 2005-2010. Two maps of deforestation hot spots were generated on the basis of MODIS data, one using digital techniques and the other by means of direct visual interpretation by experts. These maps were validated against Landsat ETM+ images. The accuracy of the map obtained digitally was estimated by means of a confusion matrix. The overall accuracy of the maps obtained digitally was 92.5%. Expert opinions regarding the hot spots permitted the causes of deforestation to be identified. The main processes of...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Monitoring; Land use; Land cover change.
Ano: 2014
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672014000200004

Conservation potential of shade-tolerant forest species in agricultural mosaics in the eastern Brazilian Amazon
Provedor de dados: 36
Autores: DO VALE,Igor; MIRANDA,Izildinha Souza; MITJA,Danielle; SANTOS,Alessio Moreira; SANTOS,Graciliano Galdino Alves dos; LEÃO,Fábio Miranda; OLIVEIRA,Mariana Gomes; COSTA,Luiz Gonzaga da Silva.
ABSTRACT Shade-tolerant forest species are among the most susceptible to habitat loss in agricultural mosaics, where a variety of croplands is connected to forests at different levels of anthropogenic disturbance. We aimed to evaluate the community similarity of shade-tolerant species among different land use types across agricultural mosaics with different levels of disturbance. The study was conducted in three municipalities in southern and southeastern Pará state, in eastern Amazonia. A multiple-community similarity measure based on the Horn similarity index was used to compare land use types and assess the resilience of shade-tolerant species towards forest loss and disturbance at the landscape level. High shade-tolerant species similarity was found...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Floristics; Land use; Pasture; Resilience; Similarity.
Ano: 2020
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672020000200124

Analysis of soybean cropland expansion in the southern Brazilian Amazon and its relation to economic drivers
Provedor de dados: 36
Autores: GUSSO,Anibal; DUCATI,Jorge Ricardo; BORTOLOTTO,Virindiana Colet.
ABSTRACT The agricultural dynamics of soybean expansion have long been recognized as a major driver of excessive land cover change on the southwestern border of the Brazilian Amazon. The hypothesis that the soybean market exerts an influence on land use was investigated by the association between economic indicators and soybean crop dynamics in the state of Mato Grosso (western Brazil). We integrated a historical series of satellite data of soybean cropland expansion and the two main economic variables (selling prices and production costs) for soybean in Mato Grosso. We focused on the relation between profit (the difference between the average soybean price and production costs) and land-use transition to soybean from 2001 to 2013. The spatially explicit...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Land use; Agriculture; Soybean mapping; Amazon biome.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672017000400281

Relief influence on tree species richness in secondary forest fragments of Atlantic Forest, SE, Brazil
Provedor de dados: 39
Autores: Silva,William Goulart da; Metzger,Jean Paul; Bernacci,Luis Carlos; Catharino,Eduardo Luís Martins; Durigan,Giselda; Simões,Sílvio.
The aim of this work was to explore the relationship between tree species richness and morphological characteristics of relief at the Ibiúna Plateau (SE Brazil). We sampled 61 plots of 0.30 ha, systematically established in 20 fragments of secondary forest (2-274 ha) and in three areas within a continuous secondary forest site, Morro Grande Reserve (9,400 ha). At each plot, 100 trees with diameter at breast height &gt; 5 cm were sampled by the point centered quarter method, and total richness and richness per dispersal and succession class were obtained. The relief was characterized by the mean and variance of slope, elevation, aspect and slope location. There was no significant relationship between relief heterogeneity and tree species richness. Relief...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Relief; Tree species richness and composition; Atlantic Forest; Land use.
Ano: 2008
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062008000200026

The seed bank of subtropical grasslands with contrasting land-use history in southern Brazil
Provedor de dados: 39
Autores: Vieira,Mariana de Souza; Bonilha,Camila Leal; Boldrini,Ilsi Iob; Overbeck,Gerhard Ernst.
The expansion of land use for agriculture is among the main reasons for the reduction of natural grasslands around the world, and little is known about the recovery potential of original native grassland vegetation from seed banks. The aim of this study was to assess the seed bank potential of grassland areas with or without history of cultivation in southern Brazil. Specifically, we aimed at evaluating if agricultural use allowed for the persistence of species typical of natural grasslands in soil seed banks. We analyzed seed banks in two areas with a history of cultivation and in two natural grasslands. Samples were collected in spring and autumn in order to assess transient and persistent components, and were characterized by density, richness, presence...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Campos Sulinos; Disturbance; Land use; Persistent seed bank; Recovery; Transient seed bank.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0102-33062015000400543

Land use drives change in amazonian tree species
Provedor de dados: 42
Autores: VIEIRA,IMA CÉLIA G.
Abstract: The Amazonian rainforest has been subjected to exceptionally high rates of land use change (LUC), primarily for pasture. We present here an analysis of the impact of LUC on trees from studies made in Pará state. LUC results in drastic declines in native species richness, changes species composition and impacts community resilience and ecosystem services provided by the Amazonian rainforest. Given that secondary forests are expanding in Amazonia we argue that this regrowth forest should be taken into account when planning conservation in this region.
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Amazon region; Biodiversity; Deforestation; Land use.
Ano: 2019
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652019000600610

Influence of land use changes on water chemistry in streams in the State of São Paulo, southeast Brazil
Provedor de dados: 42
Autores: Silva,Daniela M.L.; Camargo,Plínio B.; Mcdowell,William H.; Vieira,Ivan; Salomão,Marcos S.M.B.; Martinelli,Luiz A.
Streamwater is affected by several processes in the watershed including anthropogenic activities that result in changes in water quality as well as in the functioning of these stream ecosystems. Therefore, this work aims to evaluate the concentration of major ions (Ca2+, Mg2+, Na+, K+, NH4+, NO3-, NO2-, Cl-, SO4(2-), PO4(3-), HCO3-) in streams in the state of São Paulo (southeast Brazil). The sampling sites are located at undisturbed (ombrophilus dense forest, semideciduous forest and savanna - cerrado) and disturbed areas (pasture, urbanization and sugar cane crops). Streamwater chemistry varied according to land use change and, in general, was higher in disturbed sites. Streams located in undisturbed sites at Ribeira de Iguape/Alto Paranapanema watershed...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Hydrochemistry; Land use; Streams; Watersheds.
Ano: 2012
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652012000400007

Geo-environmental zoning using physiographic compartmentalization: a proposal for supporting sustainable decision-making
Provedor de dados: 42
Autores: CORRÊA,CLAUDIA V.S.; REIS,FÁBIO A.G.V.; GIORDANO,LUCILIA C.; BRESSANE,ADRIANO; CHAVES,CAMILA J.; AMARAL,ANA MARIA C. DO; BRITO,HERMES D.; MEDEIROS,GERSON A. DE.
ABSTRACT The geo-environmental zoning represents an important strategy in the territorial management. However, it requires a logical and structured procedure. Therefore, an approach using physiographic compartmentalization is proposed and applied as case study in a region covered by the topographic maps of São José dos Campos and Jacareí, Brazil. This region has great geological and geomorphological peculiarities, beyond being a place with large human interventions because of its quickly economic growth. The methodology is based on photointerpretation techniques and remote sensing in GIS environment. As a result, seven geo-environmental zones were obtained from a weighted integration by multicriteria analysis of physiographic units with land-use classes....
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Remote sensing; Decision-support; Earth sciences; Land use.
Ano: 2017
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652017000401503

Fish fauna in forested and rural streams from an ecoregion of high endemism, lower Iguaçu River basin, Brazil
Provedor de dados: 49
Autores: Delariva,Rosilene Luciana; Neves,Mayara Pereira; Larentis,Crislei; Kliemann,Bruna Caroline Kotz; Baldasso,Mara Cristina; Wolff,Luciano Lazzarini.
Abstract The fish fauna of eight streams with different land uses of their watersheds (forested and rural areas) in the lower Iguaçu River basin was inventoried, in order to evaluate the composition and species richness. The fishes were sampled quarterly from May 2015 to February 2016, using the electrofishing technique. In total, 4,239 individuals were captured, belonging to six orders, 11 families and 26 species. The orders Siluriformes and Characiformes, and the families Characidae and Trichomycteridae were the most specious. Of the total species sampled, 65% were endemic to the Iguaçu River basin, four are not described and four are non-native. As expected to the Iguaçu River basin, the inventoried fauna revealed low richness and high endemism, however...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Freshwater; Ichthyofauna; Inventory; Iguassu ecoregion; Land use.
Ano: 2018
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032018000300304

Land use change in the Atlantic Forest affects carbon and nitrogen sources of streams as revealed by the isotopic composition of terrestrial invertebrates
Provedor de dados: 49
Autores: Augusto,Fernanda Gaudio; Tassoni Filho,Mauricio; Ferreira,Anderson; Pereira,Alexandre Leandro; Camargo,Plínio Barbosa de; Martinelli,Luiz Antonio.
Terrestrial invertebrates link terrestrial systems to aquatic ones, making vegetal material produced in the watershed available to aquatic food webs. In this study, using carbon and nitrogen stable isotopes, we evaluated the importance of introduced C4 grasses as a source of carbon in aquatic food webs of headwater streams of the coastal Atlantic Forest located on the north coast of the State of São Paulo, in the southeastern region of Brazil. Terrestrial invertebrates were collected in two streams: one where the main land cover was pristine montane Atlantic Forest (forest stream) and another where the main land cover was introduced C4 forage grasses for livestock (pasture stream). The average δ13C of terrestrial invertebrates collected in the forest...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Atlantic Forest; Land use; Streams; Stable isotopes; Terrestrial invertebrate.
Ano: 2015
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032015000200104

Structure and composition of bacterial and fungal community in soil under soybean monoculture in the Brazilian Cerrado
Provedor de dados: 58
Autores: Bresolin,J.D; Bustamante,M.M.C; Krüger,R.H; Silva,M.R.S.S; Perez,K.S.
Soybean is the most important oilseed cultivated in the world and Brazil is the second major producer. Expansion of soybean cultivation has direct and indirect impacts on natural habitats of high conservation value, such as the Brazilian savannas (Cerrado). In addition to deforestation, land conversion includes the use of fertilizers and pesticides and can lead to changes in the soil microbial communities. This study evaluated the soil bacterial and fungal communities and the microbial biomass C in a native Cerrado and in a similar no-tillage soybean monoculture area using PCR-DGGE and sequencing of bands. Compared to the native area, microbial biomass C was lower in the soybean area and cluster analysis indicated that the structure of soil microbial...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Savanna; Land use; Cropland; Microbial Communities; DGGE.
Ano: 2010
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822010000200021

Water quality of the reservoirs used for irrigation in São José dos Pinhais, Paraná State, Brazil
Provedor de dados: 65
Autores: Jarek,Tiago Miguel; Souza,Jorge Luiz Moretti de; Favaretto,Nerilde; Ruaro,Lucimeris.
ABSTRACT: Land use outside its agricultural potential and low vegetation cover in the watershed impair the quality of water used for irrigation and may contribute to the spread of pathogenic coliform bacteria. The objective of this study was to relate the quality of irrigation water with the intensity and type of land use and the rainfall in a vegetable-producing region of São José dos Pinhais, Paraná. Water samples were collected monthly in 2013 from two reservoirs and one preserved source. After collection, the samples were chilled in Styrofoam boxes and transported to the laboratory for analyses of the total and thermotolerant coliforms. Effect of land use was analyzed by probability estimation trees. High land use and weekly above average rainfall...
Tipo: Info:eu-repo/semantics/article
Palavras-chave: Coliform; Watershed; Land use.
Ano: 2016
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000400626