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Registros recuperados: 29
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Agricultural Land Tenure and Carbon Offsets AgEcon
Claassen, Roger; Morehart, Mitchell J..
Agricultural Land Tenure and Carbon Offsets examines the potential role that land ownership might play in determining the agricultural sector’s involvement in carbon sequestration programs. By estimating the carbon sequestration potential of agricultural producers who own most of the land they operate, this report finds that land ownership should not be a constraining factor in agriculture’s ability to provide carbon offsets.
Tipo: Report Palavras-chave: Keywords: Climate change; Carbon sequestration; Carbon offsets; Cap and trade programs; Farmland ownership; Tenure; Farming practices; Conservation practices; Conservation Reserve Program; Crops; Livestock; Environmental services; ERS; USDA; Environmental Economics and Policy; Land Economics/Use.
Ano: 2009 URL: http://purl.umn.edu/58994
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Análisis comparativo de costos del uso de la tierra en la Sierra Norte de Puebla. Colegio de Postgraduados
Rojas López, Odilia.
En México, los mecanismos de pago por servicios ambientales (PSA) son relativamente recientes por lo que todavía existen algunos aspectos a mejorar en su aplicación. Un componente crucial en el PSA Hidrológico (PSAH) es la determinación de los montos de pago adecuados a los productores forestales por la renta de sus terrenos. La presente investigación estimó la renta de la tierra bajo los usos agrícola, pecuario y forestal, a través del método costo de oportunidad, en la Sierra Norte de Puebla. Además, determinó cómo las características físico-químicas de los suelos de aptitud forestal se modifican ante un cambio de uso de la tierra limitando la provisión de servicios ambientales. El estudio se integró y desarrolló en cuatro capítulos: (I) Introducción...
Palavras-chave: Cambios de uso de la tierra; Características químicas; Costo de oportunidad; Servicios ambientales; Renta de la tierra; Land use change; Chemical characteristics; Opportunity cost; Environmental services; Land rent; Maestría; Forestal.
Ano: 2011 URL: http://hdl.handle.net/10521/475
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Análisis comparativo de costos del uso de la tierra en la Sierra Norte de Puebla. Colegio de Postgraduados
Rojas López, Odilia.
En México, los mecanismos de pago por servicios ambientales (PSA) son relativamente recientes por lo que todavía existen algunos aspectos a mejorar en su aplicación. Un componente crucial en el PSA Hidrológico (PSAH) es la determinación de los montos de pago adecuados a los productores forestales por la renta de sus terrenos. La presente investigación estimó la renta de la tierra bajo los usos agrícola, pecuario y forestal, a través del método costo de oportunidad, en la Sierra Norte de Puebla. Además, determinó cómo las características físico-químicas de los suelos de aptitud forestal se modifican ante un cambio de uso de la tierra limitando la provisión de servicios ambientales. El estudio se integró y desarrolló en cuatro capítulos: (I) Introducción...
Palavras-chave: Cambios de uso de la tierra; Características químicas; Costo de oportunidad; Servicios ambientales; Renta de la tierra; Land use change; Chemical characteristics; Opportunity cost; Environmental services; Land rent; Maestría; Forestal.
Ano: 2011 URL: http://hdl.handle.net/10521/475
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Contribución de los escarabajos estercoleros a la productividad ganadera en Veracruz. Colegio de Postgraduados
Cruz Rosales, Ma. Magdalena.
El ganado vacuno produce alimentos y otros bienes, junto con estiércol. Los escarabajos estercoleros al enterrar, desmenuzar y consumir el estiércol, limpian el pasto que será consumido por el ganado; reintegrando nutrientes al suelo, fertilizándolo y eliminando huevos de parásitos y moscas. En la zona ganadera de La Laguna, Veracruz, se midió la acción de los escarabajos en la descomposición del estiércol durante la temporada de lluvias del 2009, ahí se observaron tres especies abundantes de escarabajos durante la primera semana de exposición de las boñigas. Se comprobó mediante un modelo de regresión, que durante la temporada de lluvias, los escarabajos estercoleros reducen 80% del peso de las boñigas en 3 días, pero en su ausencia la misma pérdida de...
Palavras-chave: Servicios ambientales; Enterramiento estiércol; Ivermectina; Valoración económica; Environmental services; Burial dung; Ivermectin; Economic assessment; Doctorado; Agroecosistemas tropicales.
Ano: 2011 URL: http://hdl.handle.net/10521/696
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Could Payments for environmental services improve rangeland management in Central Asia, West Asia and North Africa? AgEcon
Dutilly-Diane, Celine; McCarthy, Nancy; Turkelboom, Francis; Bruggeman, Adriana; Tiedemann, James; Street, Kenneth; Serra, Gianluca.
Although several institutional and management approaches that address the degradation of the rangelands have been tested in the dry areas of Central and West Asia and North Africa (CWANA), impact has been limited. Nonetheless, the development of National Action Plans to combat desertification highlights the interest of governments to tackle this issue. Payment for Environmental Services (PES) may be a viable policy option, though, to date, most PES programs have focused on the management of different resources (forests, watersheds). The purpose of this paper is to examine whether PES could be a viable option to promote sustainable rangelands management in the dry rangelands of CWANA. Specifically, it focuses on the scientific gaps and knowledge related to...
Tipo: Working or Discussion Paper Palavras-chave: Environmental services; Rangelands; North Africa; West Asia; Central Asia; Land Economics/Use.
Ano: 2007 URL: http://purl.umn.edu/47222
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Current overview and potential applications of the soil ecosystem services approach in Brazil PAB
Prado,Rachel Bardy; Fidalgo,Elaine Cristina Cardoso; Monteiro,Joyce Maria Guimarães; Schuler,Azeneth Eufrausino; Vezzani,Fabiane Machado; Garcia,Junior Ruiz; Oliveira,Aline Pacobayba de; Viana,João Herbert Moreira; Pedreira,Bernadete da Conceição Carvalho Gomes; Mendes,Ieda de Carvalho; Reatto,Adriana; Parron,Lucília Maria; Clemente,Eliane de Paula; Donagemma,Guilherme Kangussu; Turetta,Ana Paula Dias; Simões,Margareth.
Abstract Human pressure on ecosystems has undesirable impacts on human well-being. After the Millennium Project, much interdisciplinary research has been developed worldwide aiming to understand these impacts on ecosystem flows and processes, and to learn about the costs and the benefits of ecosystem services for production. Soil provides many ecosystem services, since its multi-functionality is the basis for food production, water filtration, nutrient cycling, and other goods essential to life. This article presents the main concepts and classifications of soil ecosystem services and of its functions; the indicators and the methods for assessment, modeling, and valuation of ecosystem services; some recent applications to assess and evaluate impacts of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Economic valuation; Environmental services; Soil function; Soil indicators; Soil management; Public policy; Soil quality.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2016000901021
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Direct Payments for Environmental Services from Mountain Agriculture in Japan: Evaluating its Effectiveness and Drawing Lessons for Developing Countries AgEcon
Sakuyama, Takumi.
This article evaluates the effectiveness of ex-post targeting of the direct payment program for mountain agriculture in Japan. A regression analysis explaining the entry into the program shows that the farm profitability and the production cost were significant positive and negative factor, respectively, in determining the uptake, while the efforts by local governments were a robust factor in facilitating the enrollment. These findings imply ineffective ex-post targeting and call for the differentiation of the premium, alternative incentives to promote forestation for the un-enrolled fields and additional funds targeted to those prefectures with the low uptake ratio. Lessons drawn from the Japanese experience for effective incentive measures in developing...
Tipo: Journal Article Palavras-chave: Cost-effectiveness; Direct payment; Environmental services; Mountain farming; Targeting; Transaction costs; Japan; Environmental Economics and Policy.
Ano: 2006 URL: http://purl.umn.edu/110128
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Disposition of precipitation: Supply and Demand for Water Use by New Tree Plantations AgEcon
Nordblom, Thomas L.; Finlayson, John D.; Hume, Iain H..
As the greatest rainwater users among all vegetative land covers, tree plantations have been employed strategically to mitigate salinity and water-logging problems. However, large-scale commercial tree plantations in high rainfall areas reduce fresh water inflows to river systems supporting downstream communities, agricultural industries and wetland environmental assets. A bio-economic model was used to estimate economic demand for water by future upstream plantations in a sub-catchment (the 2.8 million ha Macquarie valley in NSW) of the Murray-Darling Basin, Australia. Given four tree-product values, impacts were simulated under two settings: without and with the requirement that permanent water entitlements be purchased from downstream entitlement...
Tipo: Conference Paper or Presentation Palavras-chave: Environmental Economics and Policy; Forest; Environmental services; Catchment; Water sources; Interception; Entitlement; Supply; Demand; Market; Economic surplus; Evapo-transpiration; Urban water; Irrigation; Wetlands..
Ano: 2011 URL: http://purl.umn.edu/101225
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Do Environmental Services Buyers Prefer Differentiated Rates? A Case Study from the Colombian Andes AgEcon
Moreno-Sanchez, Rocio del Pilar; Maldonado, Jorge Higinio; Wunder, Sven; Borda, Carlos Andres.
Flat user fees in payment for environmental services (PES) schemes promote administrative ease, and are sometimes perceived as egalitarian. However, when environmental service (ES) buyers are heterogeneous in their income and water consumption levels, this may not be optimal, as total payments become too low and services are under-supplied. This paper identifies ES buyer preferences and estimates their willingness to pay (WTP) differentiated fees in an ongoing PES initiative in an Andean watershed in Colombia. Small, flat user payments have recently been introduced to implement incipient watershed protection upstream. Environmental service users fall into two highly heterogeneous categories: smallholder peasants and owners of recreational houses. We...
Tipo: Working or Discussion Paper Palavras-chave: PES; WTP; Environmental services; Colombia; Watershed protection; Community/Rural/Urban Development; Demand and Price Analysis; Resource /Energy Economics and Policy; Q56; Q25; Q5; Q51; C25; D10; D12; D61; D63.
Ano: 2009 URL: http://purl.umn.edu/91171
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Economic Evaluation of Pollination Services Comparing Coffee Landscapes in Ecuador and Indonesia Ecology and Society
Olschewski, Roland; University of Goettingen; rolsche@uni-forst.gwdg.de; Tscharntke, Teja; University of Goettingen; ttschar@gwdg.de; Schwarze, Stefan; University of Goettingen; sschwar1@gwdg.de; Klein, Alexandra-Maria; University of Goettingen; aklein2@gwdg.de.
Tipo: Peer-Reviewed Reports Palavras-chave: Biodiversity conservation; Certified shaded coffee; Environmental services; Pest management.
Ano: 2006
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El programa de pago de servicio ambiental hidrológico (PSAH) como una estrategia de conservación de recursos naturales y sensibilización ambiental de la región Izta-Popo Colegio de Postgraduados
Martínez Cruz, Diego Armando.
Los bosques de la región Izta-Popo del estado de Puebla son importantes para mantener los procesos del ciclo hidrológico, del cual depende el abastecimiento de agua para las comunidades locales y para la ciudad de Puebla. Para evitar la pérdida y deterioro de estos bosques en la región, la Comisión Nacional Forestal (CONAFOR) ha ejecutado desde hace 5 años el programa de Pago por Servicios Hidrológicos (PSAH). Si se toma en cuenta que el éxito de cualquier estrategia de conservación depende en gran medida de su aprobación por parte de las comunidades poseedoras de los recursos, el conocer la percepción y actitudes respecto a temas de conservación dará elementos para revisar la pertinencia, limitaciones y efectos positivos del programa en la región. En este...
Tipo: Tesis Palavras-chave: Servicios ambientales; Actitud; Percepción; Conservación; Valoración económica; Maestría; EDAR; Estrategias para el Desarrollo Agrícola Regional; Environmental services; Attitude; Perception; Conservation; Economic valuation..
Ano: 2009 URL: http://hdl.handle.net/10521/1602
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Ermittlung der Nachfrage nach ökologischen Gütern der Landwirtschaft – Das Northeim-Projekt AgEcon
Fischer, Anke; Hespelt, Sonja K.; Marggraf, Rainer.
This paper presents a case study on the development and implementation of a decentralised and outcome-based agri-environmental payment scheme in a project region in central Germany. A research group from Goettingen University together with local actors designed the scheme which complies with the European Union’s Common Agricultural Policy. The core of the programme is the creation of a market for ecological goods, in this case: of plant diversity standards in agriculture. Supply is provided by the local farmers, who, in an open competitive bidding, offer to produce as much as they are willing to of the commodity in question. The local population has to be seen as the beneficiary of these environmental goods. In the project, it is represented by a Regional...
Tipo: Journal Article Palavras-chave: Environmental services; Decentralisation; Contingent valuation; Merit goods; Environmental Economics and Policy.
Ano: 2003 URL: http://purl.umn.edu/98083
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Estudio de mercado del servicio ambiental hidrológico en la cuenca de Tapalpa, Jalisco Colegio de Postgraduados
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
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Global warming in Amazonia: impacts and Mitigation Acta Amazonica
Fearnside,Philip Martin.
Global warming has potentially catastrophic impacts in Amazonia, while at the same time maintenance of the Amazon forest offers one of the most valuable and cost-effective options for mitigating climate change. We know that the El Niño phenomenon, caused by temperature oscillations of surface water in the Pacific, has serious impacts in Amazonia, causing droughts and forest fires (as in 1997-1998). Temperature oscillations in the Atlantic also provoke severe droughts (as in 2005). We also know that Amazonian trees die both from fires and from water stress under hot, dry conditions. In addition, water recycled through the forest provides rainfall that maintains climatic conditions appropriate for tropical forest, especially in the dry season. What we need...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Carbon; Climate change; Deforestation; Environmental services; Global warming; Greenhouse effect.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0044-59672009000400030
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Green Technologies for a More Sustainable Agriculture AgEcon
Hrubovcak, James; Vasavada, Utpal; Aldy, Joseph E..
For U.S. agriculture to continue along a sustainable path of economic development, further production increases must be generated by technologies that are both profitable and more environmentally benign. In this context, we assess the role of these green or sustainable technologies in steering agriculture along a more sustainable path. However, the lack of markets for the environmental attributes associated with green technologies can limit their development. In addition, simply making a technology available does not mean it will be adopted. Experience with green technologies such as conservation tillage, integrated pest management, enhanced nutrient management, and precision agriculture demonstrates that even when technologies are profitable, barriers to...
Tipo: Report Palavras-chave: Sustainable agriculture; Natural capital; Nonrenewable resources; Renewable resources; Environmental services; Green technology; Integrated pest management; Conservation tillage; Enhanced nutrient management; Precision agriculture; Environmental Economics and Policy; Farm Management.
Ano: 1999 URL: http://purl.umn.edu/33721
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IMPACT OF LAND USE CHANGE ON THE WATER BALANCE IN A REPRESENTATIVE WATERSHED IN THE SEMIARID OF THE STATE OF PERNAMBUCO USING THE SWAT MODEL REA
Fontes Júnior,Robertson; Montenegro,Abelardo.
ABSTRACT The Brazilian semiarid region present high rainfall variability and long dry periods. Thus, the main springs and streams are generally intermittent, and both native vegetation and human activities have a strong influence on hydrological processes and the water yield in the watershed. The aim of this study was to investigate the impacts of reforestation of the arboreal Caatinga on the availability of water in a representative basin of the Northeast semiarid with strong anthropic influence, considering a period of severe water scarcity from 2012 to 2015, using the SWAT model as a management tool. The SWAT model successfully simulated the flow hydrograph for the period from 2000 to 2015, with Nash-Sutcliffe (NS) efficiency coefficient of 0.77 and...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental services; Water resources management; Hydrological modeling.
Ano: 2019 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-69162019000100110
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Minimising costs of environmental service provision: water-yield, salt-load and biodiversity targets with new tree planting in Simmons Creek Catchment, NSW, a dryland farming/grazing area. AgEcon
Nordblom, Thomas L.; Hume, Iain H.; Cresswell, Hamish; Glover, Mark; Hean, Robyn L.; Finlayson, John D.; Wang, Enli.
Although dryland farming and grazing have been practiced for over 130 years in the 17,000 ha Simmons Creek catchment without surface salinity problems, the area has been identified as a significant source of salt seepage to Billabong Creek in the NSW Murray catchment. Groundwater movement and salinity levels are spatially heterogenous at Simmons Creek. Groundwater of the upper catchment is relatively fresh and seemingly unconnected with the highly saline groundwater of the lower catchment. However, fresh surface water does flow from the upper to the lower catchment. This spatial diversity provokes the question of where high-water-use forest habitats might be placed to achieve different combinations of environmental services (greater water yield, lower...
Tipo: Conference Paper or Presentation Palavras-chave: Optimisation; Opportunity costs; Forest-habitat; Environmental services; Environmental Economics and Policy.
Ano: 2007 URL: http://purl.umn.edu/10357
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Poverty and Environmental Services: Case Study in Way Besai Watershed, Lampung Province, Indonesia Ecology and Society
Suyanto, S.; World Agroforestry Centre (ICRAF); suyanto@cgiar.org; Khususiyah, Noviana; World Agroforestry Centre (ICRAF); Nkhususiyah@cgiar.org; Leimona, Beria; World Agroforestry Centre (ICRAF); lberia@cgiar.org.
Tipo: Peer-Reviewed Reports Palavras-chave: Coffee trees; Agroforestry; Environmental services; Equity; Poverty; Payment for environmental services; Watershed; Lampung Province; Indonesia.
Ano: 2007
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Private Sector Participation in the Water and Wastewater Services Industry AgEcon
Baumert, Jennifer; Bloodgood, Laura.
Countries introduce private sector participation into the water and wastewater utilities sector for a number of reasons. The introduction of a profit motive may increase efficiency as compared to public management of the water system, and private firms have been noted for customer service improvements. Financial considerations, including revenues from the sale of assets and reductions in the direct cost of providing water services, may also motivate governments to introduce private sector participation in this industry. However, because water is a basic human necessity, the introduction of private participation in this industry sector may raise social, economic, and national security concerns. Private participation in the global water and wastewater...
Tipo: Working or Discussion Paper Palavras-chave: Water; Wastewater; Environmental services; Private sector participation; Public Economics.
Ano: 2004 URL: http://purl.umn.edu/15876
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Produção de biomassa e CO2 equivalente em sistema agrossilvipastoril: uma aplicação da dinâmica de sistema. Repositório Alice
BEZERRA, F. G. S.; LIMA, P. V. P. S.; GUIMARAES, V. P.; BEZERRA, K. R. A.; MAYORGA, M. I. de O.; CAMPANHA, M. M..
Resumo: Os Sistemas Agroflorestais (SAFs) mostram-se como uma alternativa social e econômica às consequências da ação antrópica sobre o meio ambiente. Buscou-se verificar a dinâmica da produção de biomassa e o estoque de CO2 equivalente no SAF, em área de caatinga no estado do Ceará. A área de estudo compreendeu o SAF localizado na Fazenda Crioula, pertencente ao Centro Nacional de Pesquisa de Caprinos da Embrapa, estando situada no município de Sobral, CE. Utilizou-se como ferramenta de elaboração do modelo o software Vensim®. As simulações basearam-se na determinação de cenários para uso da terra (culturas agrícolas) e manejo da caatinga. Os resultados demonstraram que o sistema foi capaz agregar renda por meio da venda dos produtos agrícolas e a...
Tipo: Anais e Proceedings de eventos Palavras-chave: Código florestal; Modelagem; Modelo de produção; Sistemas Agroflorestais; Serviços ambientais; Environmental services; Semiárido; Brasil; Agroforestry systems; Model forests.; Caatinga; Carbono; Agricultura familiar; Carbon; Semiarid zones..
Ano: 2011 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/919807
Registros recuperados: 29
Primeira ... 12 ... Última
 

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