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| Registros recuperados: 10 | |
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| Kendy, Eloise; Molden, David J.; Steenhuis, Tammo S.; Liu, Changming; Wang, Jinxia. |
| The report examines the relationships between agricultural policies in the North China Plain, the approaches to water management that evolved from them, the quantity of water that was actually used, and the consequent groundwater depletion beneath Luancheng County, Hebei Province, from 1949 to 2000. To systematically address these relationships, we use a comprehensive water-balance approach. Our results indicate that a single, longstanding policy-that of using groundwater to meet the crop-water requirements not supplied by precipitation-is responsible for the steady rate of groundwater decline. |
| Tipo: Report |
Palavras-chave: Agricultural production; Groundwater; Aquifers; Water shortage; Irrigation efficiency; Agricultural policy; Crop production; Wastewaters; Water management; Hydrology; Economic development; Crop yield; Cotton; Wheat; Sprinkler irrigation; Water conservation; Water use efficiency; Pumping; Water balance; Vegetables; Rural economy; Irrigated framing; Community/Rural/Urban Development; Crop Production/Industries; Environmental Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/44560 |
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| Blanke, Amelia; Rozelle, Scott; Lohmar, Bryan; Wang, Jinxia; Huang, Jikun. |
| Sustainable use of water resources in the face of population and economic growth is of great importance in northern China, as it is in much of the world. Rapid expansion of irrigated agricultural and urban demand is depleting groundwater and overexploiting surface water resources in northern China. Despite substantial investment in the development of water saving technology and the potential impact of widespread adoption, there has been little research on the extent of adoption in northern China or the conditions under which water saving technology is adopted. This paper uses data from two recent surveys in northern China to measure the extent of water saving technology adoption and to analyze the determinants of this adoption. The technologies we... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2005 |
URL: http://purl.umn.edu/19437 |
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| Wang, Jinxia; Mendelsohn, Robert; Dinar, Ariel; Huang, Jikun. |
| This paper examines how farmers have adapted to the current range of climates across China. A cross sectional method is used to analyze irrigation choice and crop choice across 8,405 farmers in 28 provinces in China. We find that both irrigation and crop choice decisions are climate sensitive. Chinese farmers are more likely to irrigate when facing lower temperatures and less precipitation. Farmers in warmer places are more likely to choose oil crops, maize, and especially cotton and wheat, and are less likely to choose vegetables, potatoes, sugar and especially rice and soybeans. In wetter locations, farmers are more likely to choose soybeans, oil crops, sugar, vegetables, cotton and especially rice, and they are less likely to choose potato, wheat... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Climate Change; Adaptation; Irrigation Choice; Crop Choice; China; Environmental Economics and Policy. |
| Ano: 2009 |
URL: http://purl.umn.edu/51803 |
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| Lohmar, Bryan; Wang, Jinxia; Rozelle, Scott; Huang, Jikun; Dawe, David. |
| Water shortages in important grain-producing regions of China may significantly affect China's agricultural production potential and international markets. Falling ground-water tables and disruption of surface-water deliveries to important industrial and agricultural regions have provoked concern that a more dramatic crisis is looming unless effective water conservation policies can be put into place rapidly. While China's water use is unsustainable in some areas, there is substantial capacity to adapt and avert a more serious crisis. Recent changes in water management policies may serve to bring about more effective water conservation. This report provides an overview of these changes and some analysis of their effectiveness. Wheat is the most likely crop... |
| Tipo: Report |
Palavras-chave: China; Irrigation; Policy; Reform; Agricultural production and trade; Resource /Energy Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/33643 |
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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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| Huang, Qiuqiong; Rozelle, Scott; Msangi, Siwa; Huang, Jikun; Wang, Jinxia. |
| Inefficient performance of irrigation systems not only leads to a waste of water resources, but may also affect agriculture production, especially in regions facing a water stress problem. In rural China, only 40% of the water allocated to irrigation is effectively used, a figure much lower than many developed countries (Wang, 2000). Although traditional irrigation technology such as flood irrigation accounts for part of the inefficient use of water, the lack of effort in managing surface irrigation systems are also thought to affect the performance of China's water systems (Wang et al., 2003). In confronting problems with China's irrigation systems, leaders have begun experimenting with changing the institutions that manage water in rural communities.... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Resource /Energy Economics and Policy. |
| Ano: 2003 |
URL: http://purl.umn.edu/22131 |
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| Huang, Qiuqiong; Rozelle, Scott; Huang, Jikun; Wang, Jinxia. |
| The overall goal of our paper is to understand the impact that irrigation investments in China have had on incomes, in general, and income and poverty alleviation in poor areas, in particular. The paper seeks to meet three objectives. First, we describe the relationship among irrigation status, crop choice, yields and household crop revenue. Second, we seek to understand the magnitude and nature of the effect that irrigation has on yields and crop revenue. Finally, we seek to understand the impact that irrigation has on incomes in poor areas. Our analysis shows that irrigation contributes to increases in yields for almost all crops and in income for farmers in all areas. The importance of cropping income in poor areas and the strong relationship... |
| Tipo: Conference Paper or Presentation |
Palavras-chave: Food Security and Poverty. |
| Ano: 2002 |
URL: http://purl.umn.edu/19605 |
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| Registros recuperados: 10 | |
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