区域农业逐日需水量估算方法研究

Estimation Method for Daily Regional Agricultural Water Demand

从作物生长周期需水的角度提出了逐日农业需水量的计算方法,并对我国日均农业需水量进行了估算。结果表明:东北平原、华北平原、长江中下游平原区是我国农业需水量最高的集中区,大部分地区日均农业需水量为100万~500万m3,部分地区甚至超过500万m^3;华南地区大部分地区的日均农业需水量为200万~500万m^3,部分地区超过500万m^3;新疆的日均农业需水量也达到100万m^3。

Calculation method for daily agricultural water demand was put forward from the aspects of water demand of crop growing period . The daily agricultural water demand in China was estimated.Results showed that Northeast China Plain, North China Plain and middle and lower reaches of the Yangtze River plain were the concentration areas of agricultural water demand in China .Daily agricultural water demand in most areas was 1 million-5 million m3 , and in some areas even exceeded 5 million m3 .Daily agricultural water demand in most areas of South China was 2 million-5 million m3 , and in some areas even exceeded 5 million m3 .Daily agricultural water demand in Xinjiang reached 1 million m3 .