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Registros recuperados: 34
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ACCOUNTING FOR SPATIAL CHARACTERISTICS OF WATERSHEDS IN EVALUATING WATER POLLUTION ABATEMENT POLICIES AgEcon
Qiu, Zeyuan; Prato, Anthony A..
This study evaluates three agricultural nonpoint pollution abatement policies: regulating the spatial pattern of agricultural activities, ambient tax, and abatement tax/subsidy. All three policies incorporate spatial characteristics of agricultural emission loading and movement for an agricultural watershed in the Midwest. The effects of spatial variation in natural conditions and landscape features on agricultural emissions and crop yield are evaluated using a newly developed biophysical simulation model and experimental data. While the policies are equally cost effective in reducing agricultural nonpoint source pollution, their implementation feasibility is quite different.
Tipo: Journal Article Palavras-chave: Atrazine; Environmental policy; Nonpoint pollution; Simulation; Watershed management; Water quality; Environmental Economics and Policy.
Ano: 1999 URL: http://purl.umn.edu/15135
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Biophysical and institutional factors in watershed management: A comparative analysis of four pilot watershed projects in India’s tribal belt AgEcon
Sakthivadivel, Ramasamy; Bhattacharya, Kamal; Scott, Christopher A..
Tipo: Working or Discussion Paper Palavras-chave: Watershed management; Development projects; Institutions; Social aspects; Institutional and Behavioral Economics; Resource /Energy Economics and Policy.
Ano: 2004 URL: http://purl.umn.edu/92658
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Chironomidae from Eastern Amazon: understanding the differences of land-use on functional feeding groups. Repositório Alice
SONODA, K. C.; MONTELES, J. S.; FERREIRA, A.; GERHARD, P..
Abstract: Deforestation for agricultural purposes is the most dangerous human action against the conservation of the Brazilian Amazon Forest; its rates reached almost 20% of the original forested area. Many studies have been conducted on Chironomidae systematics and ecology over the Amazon biome, but most concerned the Central Amazon, while little is known about Chironomidae diversity and the effects of land development and agriculture intensification on the aquatic biota from Eastern Brazilian Amazon. The present study analyzed the effects of different land-use and land-cover on Chironomidae assemblages. Land-Use and Land-Cover (LULC) at the riparian zone were assessed from satellite imagery and three categories were defined: Forest, Secondary (Capoeira)...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Rainforest; Uso da Terra; Cobertura vegetal; Agricultura; Impacto ambiental; Chironomidae; Macroinvertebrates; Land use; Watershed management; Aquatic insects; Land cover.
Ano: 2018 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1100902
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Community Watershed Management in Semi-Arid India: The State of Collective Action and its Effects on Natural Resources and Rural Livelihood AgEcon
Shiferaw, Bekele A.; Kebede, Tewodros A.; Reddy, V. Ratna.
Spatial and temporal attributes of watersheds and the associated market failures that accelerate degradation of agricultural and environmental resources require innovative institutional arrangements for coordinating use and management of resources. Effective collective action (CA) allows smallholder farmers to jointly invest in management practices that provide collective benefits in terms of economic and sustainability gains. The Government of India takes integrated watershed management (IWM) as a key strategy for improving productivity and livelihoods in the rain-fed and drought-prone regions. This study investigates the institutional and policy issues that limit effective participation of people in community watershed programs and identifies key...
Tipo: Conference Paper or Presentation Palavras-chave: Collective action; Institutions; Property rights; Watershed management; Poverty; Environmental impacts; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/44358
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Companion Modeling, Conflict Resolution, and Institution Building: Sharing Irrigation Water in the Lingmuteychu Watershed, Bhutan Ecology and Society
Gurung, Tayan Raj; RNR Research Centre, Council for RNR Research of Bhutan, Ministry of Agriculture, Bhutan; tayangurung@yahoo.com; Bousquet, Francois; CIRAD Green TA 60/15 Campus de Baillarguet 34398 Montpellier Cedex 5 France; bousquet@cirad.fr.
We used multi-agent systems (MAS), following the companion modeling method, to facilitate water management negotiations in Bhutan. We show how this methodology helped resolve a conflict over the sharing of water resources by establishing a concrete agreement and creating an institution for collective watershed management. The conceptual model begins with a role-playing game (RPG). The stakeholders play the game, thus validating the proposed environment, the behavioral rules, and the emergent properties of the game. It is then relatively easy to translate the RPG into computerized MAS that allow different scenarios to be explored. After this first step in the MAS model, stakeholders then create an institution. A second model is developed to facilitate this...
Tipo: Peer-Reviewed Reports Palavras-chave: Bhutan companion modeling; Multi-agent system; Role-playing game; Watershed management.
Ano: 2006
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Contiguous urban rivers should not be necessarily submitted to the same management plan: the case of Tietê and Pinheiros Rivers (São Paulo-Brazil) Anais da ABC (AABC)
Cunha,Davi G. F.; Grull,Doron; Damato,Murilo; Blum,José R. C.; Eiger,Sergio; Lutti,José E.I.; Mancuso,Pedro C. S..
The management of urban water resources plays an important role for developing countries. The Tietê and Pinheiros Rivers (São Paulo, Brazil) are affected by domestic and industrial effluents and by the diffuse pollution. This research aimed to quantify 134 variables in the water of Tietê and Pinheiros Rivers (approximately 7,200 and 6,600 analyses, respectively) from August 2007 to December 2008. The idea was to verify if the fact that both rivers are located in the same basin is enough to consider the application of a single management plan for both. Data showed that the rivers presented significant anthropogenic interference. The results suggested that such rivers must be subjected to individual management plans since there were exclusive occurrences...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Environmental monitoring; Metropolitan region of São Paulo (MRSP); Urban rivers; Water pollution; Water quality; Watershed management.
Ano: 2011 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0001-37652011000400032
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Economics of Integrated Watershed and Reservoir Management AgEcon
Lee, Yoon; Yoon, Taeyeon; Shah, Farhed A..
A dynamic optimization framework is used to analyze integrated watershed management and suggest appropriate policies. Soil conservation, reservoir level sediment release, downstream water allocation and water quality are subject to control. Application of the model to the Aswan Dam watershed illustrates the need for international cooperation to manage shared watersheds.
Tipo: Conference Paper or Presentation Palavras-chave: Watershed management; Soil erosion; Reservoir sedimentation; Environmental Economics and Policy; Resource /Energy Economics and Policy; Q25; Q53.
Ano: 2009 URL: http://purl.umn.edu/49478
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Enhancing cost-effective watershed management in the brazilian Atlantic Forest by valuing forest ecosystem services linked to water quality in the Guapi-Macacu watershed. Repositório Alice
RODRÍGUEZ OSUNA, V.; BÖRNER, J.; NEHREN, U.; GAESE, H.; PRADO, R. B..
The Guapi-Macacu watershed is located in the Brazilian state of Rio de Janeiro, has a drainage area of about 1.640 km2, and drains into the Guanabara Bay northeast of the metropolitan area. The upper catchment in the Serra dos Órgãos mountain range is covered by dense old-growth forest of high biological diversity, while pastures and agricultural land dominate in the lower catchment. Apart from its outstanding biological value, the watershed provides crucial services including water supply to 2.5 million inhabitants in five municipalities. Nevertheless, forests and soils in the lower watershed are highly degraded due to the expansion of the agricultural frontier, overexploitation, and suburbanisation processes. Several pressures on this ecosystem persist....
Tipo: Resumo em anais de congresso (ALICE) Palavras-chave: Mata Atlântica; Serviços Ecossistêmicos; Bacia Hidrográfica; Qualidade da Água; Watershed management; Ecosystem services; Water quality.
Ano: 2012 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1112441
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How pro-poor are participatory watershed management projects?: An Indian case study AgEcon
Kurian, Mathew; Dietz, Ton.
This report draws on a survey and case study evidence from 28 watershed management groups in Haryana to argue that participatory watershed management projects need not necessarily safeguard the interests of poorer rural households.
Tipo: Report Palavras-chave: Watershed management; Participatory management; Poverty; Farm income; Labor; Households; Women; Forest management; Dams; Irrigated farming; Case studies; Agricultural Finance; Consumer/Household Economics; Crop Production/Industries; Farm Management; Food Security and Poverty.
Ano: 2005 URL: http://purl.umn.edu/44542
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Hydrobiogeochemistry of two catchments in Brazil under forest recovery in an Environmental Services Payment program. Repositório Alice
FIGUEIREDO, R. de O.; SIMIOLI, M. M.; JESUS, T. V. U. C.; CRUZ, P. P. N. da; SILVA, G. B. S. da; NOGUEIRA, S. F.; GREEN, T. R.; CAMARGO, P. B. de.
Abstract: We investigated the fluvial geochemistry of two catchments at different stages in the forest recovery process which have been a focus of an Environmental Services Payment (ESP) program in Brazil. The Posses (PS) and Salto de Cima (SC) catchments (1200 ha and 1500 ha, respectively) are situated in the municipality of Extrema, Minas Gerais state. Their streams flow into the Jaguari River that supplies part of the water demand of the São Paulo metropolitan area. Samples were collected for chemical analysis and physical-chemical field measures every 2 weeks from January to December 2017. An important pollution point source was discovered in the PS stream related to bovine urine and feces, as well another unidentified source that can be related to a...
Tipo: Artigo em periódico indexado (ALICE) Palavras-chave: Biogeochemical cycling; Bacia Hidrográfica; Córrego; Poluição da Água; Reflorestamento; Proteção Ambiental; Qualidade da Água; Ecosystem services; Watershed management; Watershed hydrology; Water pollution; Water quality analysis; Land use change; Water resources.
Ano: 2020 URL: http://www.alice.cnptia.embrapa.br/alice/handle/doc/1128011
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Impacts of deforestation on water balance components of a watershed on the Brazilian East Coast Rev. Bras. Ciênc. Solo
Pereira,Donizete dos Reis; Almeida,André Quintão de; Martinez,Mauro Aparecido; Rosa,David Rafael Quintão.
The Brazilian East coast was intensely affected by deforestation, which drastically cut back the original biome. The possible impacts of this process on water resources are still unknown. The purpose of this study was an evaluation of the impacts of deforestation on the main water balance components of the Galo creek watershed, in the State of Espírito Santo, on the East coast of Brazil. Considering the real conditions of the watershed, the SWAT model was calibrated with data from 1997 to 2000 and validated for the period between 2001 and 2003. The calibration and validation processes were evaluated by the Nash-Sutcliffe efficiency coefficient and by the statistical parameters (determination coefficient, slope coefficient and F test) of the regression...
Tipo: Info:eu-repo/semantics/article Palavras-chave: SWAT; Watershed management; Hydrological modeling; Atlantic Forest.
Ano: 2014 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-06832014000400030
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Improved water and land management in the Ethiopian highlands: its impact on downstream stakeholders dependent on the Blue Nile; Intermediate Results Dissemination Workshop February 5-6, 2009, Addis Ababa, Ethiopia AgEcon
Awulachew, Seleshi Bekele; Erkossa, Teklu; Smakhtin, Vladimir U.; Fernando, Ashra.
Tipo: Conference Paper or Presentation Palavras-chave: River basin management; Watershed management; Farming systems; Water balance; Reservoirs; Water supply; Irrigation requirements; Irrigation programs; Simulation models; Sedimentation; Rainfall-Runoff relationships; Erosion; Soil water; Water balance; Soil conservation; Institutions; Organizations; Policy; Water governance; International waters; Institutional and Behavioral Economics; Land Economics/Use; Resource /Energy Economics and Policy.
Ano: 2009 URL: http://purl.umn.edu/118389
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Institutional settings and livelihood strategies in the Blue Nile Basin: Implications for upstream/downstream linkages AgEcon
Haileslassie, Amare; Hagos, Fitsum; Mapedza, Everisto; Sadoff, Claudia W.; Awulachew, Seleshi Bekele; Gebreselassie, Solomon; Peden, Don.
Through rapid assessment of existing literature and review of policy and other official documents, the report synthesizes the existing knowledge and gaps on policies and institutions and identifies key research issues that need in-depth study. The report provides an overview of the range of key livelihoods and production systems in the Blue Nile Basin (BNB) and highlights their relative dependence on, and vulnerability to, water resources and water-related ecosystem services. It also makes an inventory of current water and land related policies and institutions in the BNB, their organizational arrangements, dynamics and linkages and key policy premises. It highlights the major problems in institutional arrangements and policy gaps and makes suggestions for...
Tipo: Working or Discussion Paper Palavras-chave: River basins; Water policy; Institutions; Institutional development; Farming systems; Mixed farming; Cereals; Sorghum; Irrigated farming; Vegetables; Pastoralism; Poverty; Water supply; Sanitation; Labor; Ecosystems; Energy; Water power; Watershed management; Water harvesting; Legal aspects; Environmental policy; Water users associations; Irrigation programs; Agricultural and Food Policy; Agricultural Finance; Crop Production/Industries; Environmental Economics and Policy; Farm Management; Resource /Energy Economics and Policy.
Ano: 2008 URL: http://purl.umn.edu/91871
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Integrated management of watersheds for agricultural diversification and sustainable livelihoods in Eastern and Central Africa Open Agri
B..
Palavras-chave: Watersheds; Watershed management; Agroecosystems; Strategies; Land improvement; Policies; Resources; Soil degradation; Pigeonpeas; Terrace cropping.
Ano: 2006 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4236
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Integrated management of watersheds for agricultural diversification and sustainable livelihoods in Eastern and Central Africa: lessons and experiences from semi-arid South Asia: proceedings of the International Workshop Open Agri
Shiferaw, B..
Palavras-chave: Watersheds; Watershed management; Agroecosystems; Strategies; Land improvement; Policies; Resources; Soil degradation; Pigeonpeas; Terrace cropping.
Ano: 2006 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/3154
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Mayordomía del agua : propuesta a partir del análisis de sus usos y riesgos en la cuenca "La Antigua", Veracruz. Colegio de Postgraduados
Román Jiménez, Ana Rita.
El manejo actual del agua en México contradice la postura oficial respectiva. Para mostrar algunos ejemplos, se analizaron los distintos usos del agua y el suelo en la cuenca La Antigua (2,326.43 Km2) en Veracruz, describiéndola como un estudio de caso. La precipitación anual estimada es abundante, su uso es continuo en las tierras de la región, y aún se considera que existen problemas de abastecimiento de agua. Los objetivos de este análisis fueron: Identificar la consistencia entre las formas actuales de uso del agua y algunas nociones básicas de lógica económica; examinar si existe escasez de agua con base en las expectativas de los usuarios; y mostrar que las inquietudes sobre los temas del agua se pueden enfrentar mejor al introducir el concepto de...
Palavras-chave: Manejo del agua; Uso múltiple; Manejo de cuencas; Unidades de paisaje; Perturbaciones ecológicas; Gestión de conflictos; Water management; Multiple land-use; Watershed management; Landscapes; Ecological disturbances; Conflict management; Forestal; Doctorado.
Ano: 2013 URL: http://hdl.handle.net/10521/2085
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Meta-analysis to assess impact of watershed program and people’s participation AgEcon
Joshi, P.K.; Jha, Awadhesh K.; Wani, S.P.; Joshi, Laxmi; Shiyani, R.L..
Tipo: Report Palavras-chave: Watershed management; Social participation; Decision making; Community/Rural/Urban Development; Resource /Energy Economics and Policy.
Ano: 2005 URL: http://purl.umn.edu/92825
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Methods for assessing the impacts of natural resource management research Open Agri
B..
Palavras-chave: Watersheds; Soil degradation; Watershed management; Assets; Policies; Land resources; Water quality; Economics; Water harvesting; Investment.
Ano: 2003 URL: http://agropedia.iitk.ac.in/openaccess/?q=node/4231
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Modeling Water Resources Management at the Basin Level: Methodology and Application to the Maipo River Basin AgEcon
Cai, Ximing; Ringler, Claudia; Rosegrant, Mark W..
Limited water resources are increasingly constrained by growing water demand for agricultural, industrial, and domestic uses, which in turn exacerbates environmental degradation and water-quality problems. This research report develops and applies a comprehensive decision-support tool for examining these issues at the river-basin level—the natural unit of analysis for water allocation and use. Authors Ximing Cai, Claudia Ringler, and Mark Rosegrant develop an integrated hydrologic– economic river-basin model, simulating water flows, salinity balances, and crop growth under water-allocation scenarios. One of the main advantages of the model is its ability to reflect the dynamic interactions of essential hydrologic, agronomic, and economic components and to...
Tipo: Report Palavras-chave: Water resources development; Chile; Maipo River Watershed; Econometric models; Watershed management; Resource /Energy Economics and Policy.
Ano: 2006 URL: http://purl.umn.edu/44249
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Network approaches for understanding rainwater management from a social-ecological systems perspective Ecology and Society
Prager, Steven D.; International Center for Tropical Agriculture (CIAT); s.prager@cgiar.org; Pfeifer, Catherine; International Livestock Research Institute (ILRI); c.pfeifer@cgiar.org.
The premise of this research is to better understand how approaches to implementing rainwater management practices can be informed by understanding how the people living and working in agroecosystems are connected to one another. Because these connections are via both social interactions and functional characteristics of the landscape, a social-ecological network emerges. Using social-ecological network theory, we ask how understanding the structure of interactions can lead to improved rainwater management interventions. Using a case study situated within a small sub-basin in the Fogera area of the Blue Nile Basin of Ethiopia, we build networks of smallholders based both on the biophysical and social-institutional landscapes present in the study site, with...
Tipo: NON-REFEREED Palavras-chave: Network theory; Social-ecological network; Social-ecological systems; Spatial data; Spatial resilience; Watershed management.
Ano: 2015
Registros recuperados: 34
Primeira ... 12 ... Última
 

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