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| Registros recuperados: 53 | |
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| Berck, Peter; Robinson, Sherman; Goldman, George E.. |
| This paper discusses basic issues in project analysis and shows how these issues can be resolved in a computable general equilibrium (CGE) framework. The role of border prices and intersectoral linkages is explored. The CGE framework is compared to less comprehensive frameworks, including benefit-cost analysis, input-output models, multi-market models, and models based on social accounting matrices (SAMs). An illustrative CGE model of the southern portion of the San Joaquin Valley is constructed and is used to find the effects of reducing water inputs on aggregate Valley gross domestic product (GDP) and on sectoral output, employment, and land use. The model is also used to determine demand curves for water by the southern portion of the Valley, given... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Benefit-cost analysis; Cge models; Employment; Input-output analysis; Land utilization; Sam; Water supply. |
| Ano: 1990 |
URL: http://purl.umn.edu/43668 |
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| Hussain, Intizar; Marikar, Fuard; Jehangir, Waqar Ahmed. |
| A study of the enormous differences in agricultural productivity that exist across farms and regions in Pakistan, where, for example, recent farm-level data from Sindh, indicates that irrigated wheat output per hectare varies from 0.5 to 5.4 tons across farms. Looks at the central goal of agricultural policy in the country, viz. improving and sustaining productivity, narrowing the existing productivity gaps, and enhancing resource use efficiencies to meet food requirements of a rapidly growing population. |
| Tipo: Report |
Palavras-chave: Irrigated farming; Wheat; Productivity; Performance evaluation; Water management; Cropping systems; Water supply; Soil properties; Models; Pakistan; Lower Indus Basin; Community/Rural/Urban Development; Crop Production/Industries; Demand and Price Analysis; Environmental Economics and Policy; Farm Management; Production Economics; Productivity Analysis. |
| Ano: 2000 |
URL: http://purl.umn.edu/53024 |
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| 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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| Roberts, Lisa A.; Leitch, Jay A.. |
| The objective of this study was to estimate some economic values of Mud Lake, a managed, lacustrine wetland on the Minnesota-South Dakota border. Several outputs of Mud Lake were identified and an economic value was estimated for each. Flood control was valued at approximately $440 per acre, based on dollar damages prevented; water supply, using public utility revenues, was valued at $94 per acre; fish/wildlife habitat, recreation, and aesthetics were valued at about $21 per acre using the Contingent Valuation Method; and corrective expenditures were used to evaluate water quality at a negative per acre value of $180. When capitalized at 6 percent, the estimated total annual value of these four outputs is $6,250 per acre. These values can assist... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Wetland; Outputs; Economic valuation; Flood control; Water supply; Water quality; Recreation; Aesthetics; Fish/wildlife habitat; Contingent valuation method; Resource /Energy Economics and Policy; Land Economics/Use. |
| Ano: 1997 |
URL: http://purl.umn.edu/23406 |
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| Hollas, Camila Ester; Pokrywiecki, Ticiane Sauer; Prado, Naimara Vieira do; Chini, Angélica; Düsman, Elisângela; Conceição, Priscila Soraia da. |
| Underground and surface water as a result of human activity are increasingly polluted. Mainly due to improper disposal of waste, discharge of effluents, among other actions that compromise the environment. The water analysis is necessary to determine and evaluate the situation of water supply to the population. This study evaluated the supply situation of three rural communities located in the south of Brazil, where the water is carried out through the abstraction of groundwater. Pastures, fields and remnants of native vegetation characterize the region. The water quality used to supply was what motivated the accomplishment of this work. The wells are unprotected in the middle of the pastures near to black cesspits and crops that use frequently... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Environmental education; Water treatment; Water supply; Groundwater; Organisms tests.. |
| Ano: 2019 |
URL: http://periodicos.uem.br/ojs/index.php/ActaSciBiolSci/article/view/43266 |
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| Registros recuperados: 53 | |
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