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| Registros recuperados: 311 | |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| 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 |
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| Registros recuperados: 311 | |
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