我国粮食安全视角下的农业用水保障战略研究

Strategic research on safety of agricultural water resources from perspective of food security in China

从保障粮食安全的角度,分析了我国农业用水安全面临的几大挑战,包括"北粮南运"加剧北方粮食产区的用水短缺、水资源"农转非"威胁农业用水安全、农田水利设施供给不足影响农业用水有效供给、水质污染减少农业用水有效供给等。通过分析评价南水北调、虚拟水战略、新水源开发战略和节水增效战略,认为节水增效是保障我国农业用水安全的根本出路,同时提出了相应的实施策略。

Some challenges to China's agricultural water security are analyzed from the perspective of food security as follows: 'sending grains from the North to the South'exacerbate water shortages in the northern grain-producing areas; the transfer of water from agriculture to non-agriculture threatens security of agricultural water; the insufficient supply of irrigation and drainage facilities affects the effective supply of agricultural water consumption; the water pollution reduces the supply of agricultural water consumption.By analyzing the four China's strategies of South-toNorth Water Diversion Project,virtual water strategy,open-sourcing strategy and of efficiency improvement of agricultural water consumption,it is concluded that improving the efficiency of agricultural water consumption is the fundamental way for protecting the security of agricultural water resources.The corresponding implementation strategies are also proposed.