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Will China's water shortage shake the world's food security?

机译：中国缺水会动摇世界粮食安全吗？

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摘要

This paper presents a detailed analysis of the long-term relationship between China's grain output and its use of irrigation water. It shows that over the last 30 years, China has maintained an increase in grain output while irrigation water withdrawal has been decreasing. Irrigation water use was not significantly correlated with grain output due to the greater offsetting effect of prices and cropping area. Although China's agricultural water use will continue to dwindle, there is no reason to expect that water productivity increases cannot continue to keep pace. This is no excuse for complacency, however.
机译：本文详细分析了中国粮食产量与灌溉用水之间的长期关系。结果表明，在过去的30年中，中国的粮食产量一直保持增长，而灌溉用水量却在减少。由于价格和农作物面积的抵消作用更大，灌溉用水与谷物产量没有显着相关性。尽管中国的农业用水量将继续减少，但没有理由指望水生产率的增长不能继续保持同步。但是，这不是自满的借口。

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  • 来源
    《Water International》 |2010年第1期|6-17|共12页
  • 作者

    Jia Shaofeng; Lin Shijun; Lv Aifeng;

  • 作者单位

    Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China;

    rnInstitute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China;

    rnInstitute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, People's Republic of China;

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  • 原文格式 PDF
  • 正文语种 eng
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  • 关键词

    irrigation water use; water productivity; food security; grain output; China;

    机译：灌溉用水;水生产率;食品安全;粮食产量;中国;

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