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

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 Southexacerbate 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.