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| Registros recuperados: 40 | |
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| Wang, Jinxia; Huang, Jikun; Rozelle, Scott. |
| The overall aim of the present paper is to better understand the evolution of tubewell ownership in the North China Plain, especially focusing on the factors that determine ownership and its effect on production. Based on a random sample of 30 villages in three counties in the Hai River Basin, our results show that collectively owned tubewells have been gradually privatised. The analyses demonstrate that increasing water and land scarcity and policy intervention (mainly fiscal and financial subsidies for tubewell investment) leads to the observed shifts in tubewell ownership patterns. The results also show that the privatisation of tubewells has affected cropping patterns in the North China Plain. When villages shift towards private tubewells, farmers move... |
| Tipo: Article |
Palavras-chave: Agricultural production; China; Privatisation; Subsidies; Tubewell ownership; Water scarcity; Agribusiness. |
| Ano: 2005 |
URL: http://purl.umn.edu/118452 |
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| Keller, Andrew; Sakthivadivel, Ramasamy; Seckler, David. |
| Of the four major ways of storing water -in the soil profile, in underground aquifers, in small reservoirs, and in large reservoirs behind dams-the first is possible only for relatively short periods of time. In this paper, the authors concentrate on the three kinds of long-term technologies, and compare the hydrological, operational, economic and environmental aspects of each. |
| Tipo: Report |
Palavras-chave: Groundwater; Water storage; Water scarcity; Reservoir storage; Costs; Aquifers; Conjunctive use; River basins; Surface water; Dams; Crop Production/Industries; Environmental Economics and Policy; Land Economics/Use; Research and Development/Tech Change/Emerging Technologies; Resource /Energy Economics and Policy. |
| Ano: 2000 |
URL: http://purl.umn.edu/44575 |
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| Zhu, Zhongping; Giordano, Mark; Cai, Ximing; Molden, David J.; Hong, Shangchi; Zhang, Huiyan; Lian, Yu; Li, Huian; Zhang, Xuecheng; Zhang, Xinghai; Xue, Yunpeng. |
| Tipo: Working or Discussion Paper |
Palavras-chave: Flood control; Water scarcity; Environmental degradation; Groundwater; Social aspects; River basin development; Water use efficiency; Crop production; Wetlands; Water pollution; Water policy; Reforms; Water quality; Flood plains; Crop Production/Industries; Environmental Economics and Policy; Resource /Energy Economics and Policy; Risk and Uncertainty. |
| Ano: 2003 |
URL: http://purl.umn.edu/92661 |
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| Soares,Lauriane Almeida dos Anjos; Fernandes,Pedro Dantas; Lima,Geovani Soares de; Suassuna,Janivan Fernandes; Pereira,Rennan Fernandes. |
| ABSTRACT Scarcity of good-quality water is a limiting factor for irrigated agriculture, especially in semi-arid regions, which leads to the use of water with high salt content to irrigate crops. Therefore, this study aimed to evaluate physiological aspects and production of colored cotton genotypes under saline stress, during the different development stages and under conditions of low and high salinity. The experiment was conducted using a randomized block design, with a 3 × 7 factorial scheme and three replicates. Treatments corresponded to three colored cotton genotypes irrigated with low-salinity water (0.8 dS m-1) and high-salinity water (9.0 dS m-1): T1-A1B1C1, T2-A2B1C1, T3-A1B2C1, T4-A1B1C2, T5-A2B1C2, T6-A2B2C1 and T7-A1B2C2 (A1, B1 and C1:... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Gossypium hirsutum L.; Water scarcity; Salinity. |
| Ano: 2018 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-66902018000200239 |
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| Registros recuperados: 40 | |
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