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| Registros recuperados: 15 | |
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| You, Liangzhi; Ringler, Claudia; Nelson, Gerald C.; Wood-Sichra, Ulrike; Robertson, Richard D.; Wood, Stanley; Guo, Zhe; Zhu, Tingju; Sun, Yan. |
| Although irrigation in Africa has the potential to boost agricultural productivities by at least 50 percent, food production on the continent is almost entirely rainfed. The area equipped for irrigation, currently slightly more than 13 million hectares, makes up just 6 percent of the total cultivated area. Eighty-five percent of Africa’s poor live in rural areas and mostly depend on agriculture for their livelihoods. As a result, agricultural development is key to ending poverty on the continent. Many development organizations have recently proposed to significantly increase investments in irrigation in the region. However, the potential for irrigation investments in Africa is highly dependent upon geographic, hydrologic, agronomic, and economic factors... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Irrigation potential; Internal rate of return; Large-scale irrigation; Small-scale irrigation; Investment; Africa; International Development; Resource /Energy Economics and Policy. |
| Ano: 2010 |
URL: http://purl.umn.edu/93736 |
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| Rosegrant, Mark W.; Ringler, Claudia; McKinney, Daene C.; Cai, Ximing; Keller, Andrew; Donoso, Guillermo. |
| Increasing competition for water across sectors increases the importance of the river basin as the appropriate unit of analysis to address the challenges facing water resources management; and modeling at this scale can provide essential information for policymakers in their resource allocation decisions. This paper introduces an integrated economic-hydrologic modeling framework that accounts for the interactions between water allocation, farmer input choice, agricultural productivity, nonagricultural water demand, and resource degradation in order to estimate the social and economic gains from improvement in the allocation and efficiency of water use. The model is applied to the Maipo River Basin in Chile. Economic benefits to water use are evaluated for... |
| Tipo: Working or Discussion Paper |
Palavras-chave: River basin model; Water policy; Water market; Resource /Energy Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/16040 |
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| Nelson, Gerald C.; Rosegrant, Mark W.; Koo, Jawoo; Robertson, Richard D.; Sulser, Timothy B.; Zhu, Tingju; Ringler, Claudia; Msangi, Siwa; Palazzo, Amanada; Batka, Miroslav; Magalhaes, Marilia Castelo; Valmonte-Santos, Rowena A.; Ewing, Mandy; Lee, David R.. |
| Tipo: Report |
Palavras-chave: Environmental Economics and Policy; Farm Management. |
| Ano: 2009 |
URL: http://purl.umn.edu/57371 |
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| Ringler, Claudia; Vu Huy, Nguyen. |
| Recent water sector reforms, increased scarcity and vulnerability of existing water resources, combined with declining public funding available for large-scale infrastructure investment in the sector have led to an increased awareness by the Government of Vietnam for the need to analyze water resource allocation and use in an integrated fashion, at the basin scale, and from an economic efficiency perspective. This paper presents the development, application, and results from an integrated economic-hydrologic river basin model for the Dong Nai River Basin in southern Vietnam that attempts to address these issues. The model framework takes into account the sectoral structure of water users (agriculture, industry, hydropower, households, and the environment),... |
| Tipo: Working or Discussion Paper |
Palavras-chave: River basin model; Water allocation policy; Integrated assessment; Vietnam; Dong Nai basin; Research and Development/Tech Change/Emerging Technologies. |
| Ano: 2004 |
URL: http://purl.umn.edu/60325 |
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| Ringler, Claudia. |
| The Mekong River is the dominant geo-hydrological structure in mainland Southeast Asia, originating in China and flowing through or bordering Myanmar, Laos, Thailand, Cambodia, and Vietnam. Whereas water resources in the wet season are more than adequate to fulfill basin needs, there are regional water shortages during the dry season, when only 1-2% of the annual flow reaches the Delta. Recent rapid agricultural and economic development in the basin has led to increasing competition among the riparian countries for Mekong waters. This development calls for a structured approach to the management of the basin, including efficient, equitable, and environmentally sustainable water allocation mechanisms that support the socioeconomic development in the region.... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2001 |
URL: http://purl.umn.edu/18745 |
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| Ringler, Claudia; Rosegrant, Mark W.; Paisner, Michael S.. |
| Latin America and the Caribbean are relatively well endowed with water resources. However, population growth and rapid urbanization are putting considerable pressure on water available for irrigation. Local and regional water scarcity problems are exacerbated by severe water quality problems; and wastewater is frequently used for irrigation. Moreover, prospects for new investments into irrigation development appear limited. This paper examines the factors underlying irrigation development in Latin America and the Caribbean, reviews the water supply situation, and describes trends in water demand and irrigated agriculture. The overall water management in the region is assessed, and recent trends in investments in the water sector, with a focus on... |
| Tipo: Working or Discussion Paper |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/16085 |
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| Rosegrant, Mark W.; Ringler, Claudia. |
| Projections of global food supply and demand to the year 2020 indicate that food production in the aggregate is likely to keep pace with growing populations and incomes, and that real food prices will be stable or slowly declining. This article examines the possible environmental and resource constraints to long‐term food production growth and explores the implications of these possible constraints for food and resource policies. The article reviews and synthesises the evidence on biophysical limits to crop productivity; plant genetic resources and biotechnology; the availability of plant nutrients; soil and land degradation; the increasing scarcity and declining quality of water; and the impact of global climate change on agriculture. |
| Tipo: Journal Article |
Palavras-chave: International Relations/Trade. |
| Ano: 1997 |
URL: http://purl.umn.edu/118055 |
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| 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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| Registros recuperados: 15 | |
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