| 虚拟水在解决农业生产和粮食安全问题中的作用研究 |
| 摘要点击 1484 全文点击 2617 投稿时间：2003-09-12 修订日期：2003-12-10 |
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| 中文关键词 虚拟水 农业用水 粮食 安全 水资源 |
| 英文关键词 virtual water agriculture food security water resource |
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| 中文摘要 |
| 随着人口增长和经济发展,水资源问题日益突出,农业用水和粮食安全问题已经成为全球关注的重要问题.本文简要回顾了虚拟水的内涵及其国内外研究现状,分析了我国的农业用水和粮食安全问题,根据粮食进口变动趋势和国内外粮食生产条件估算出2010年和2020年我国进口的虚拟水量分别为88×109m3和95×109m33,并提出了通过进口虚拟水解决我国农业和粮食问题,从而实现我国水资源的可持续利用.
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| 英文摘要 |
| Water resource demand is increasing with the population growth and economic development. Water resource problem for agriculture and food security have become one of the global focal points because of water resource scarcity. The concept of virtual water is useful to analyze and impair this problem.In this paper,virtual water implication was described, and international study progress about it was briefly reviewed. Furthermore, China's agricultural water scarcity and food security were analyzed. According to the grain import prediction and agricultural production conditions of China,the virtual water equivalents of China in 2010 and 2020 were evaluated, which were 88×109m3 in 2010 and 95×109m3 in 2020. With the function of virtual water to agricultural water stress, virtual water strategy was suggested to relieve agricultural production pressure from water resource and meet growing food demand as well as to promole water resource sustainability in China. |
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