【作者】 洪林； 李明罡； 郭茂；

【Author】 HONG Lin1, LI Ming-gang1, GUO Mao2 (1. State Key Lab of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan City 430072; 2. Division of Yellow River Water Diversion of Kaifeng City, Kaifeng City 475004)

【机构】 武汉大学水资源和水电工程科学国家重点实验室； 开封市引黄处；

【摘要】 本文主要分析各部门的水量分配、水源、作物种植面积、作物产量和灌溉水分生产率。选择河南省开封市引黄灌区对农业节水潜力进行研究。在过去的三十多年里,开封市非农业用水的需水量有了很大增长,而非农业供水的增加是通过增加地下水开采量来解决的,灌溉水分生产率的提高主要是通过作物产量提高来实现。目前,开封市引黄灌区面临着进一步减少农业供水的压力,因此在这个地区开展进一步提高灌溉水分生产率潜力研究,并对研究结果进行分析是十分重要的。更多还原

【Abstract】 The main aim of this study is to examine the long-term trends in water allocations between agricultural and non-agricultural uses and in crop and water productivity. The main problems in agricultural water-saving potential are analyzed with the case study of Kaifeng City. There were substantial gains in non-agricultural water uses from the late 1960s until 2000. But the main way to the increase water supply is through increasing groundwater extraction, and the factor contributing to the promotion of agricultural production is increasing in yield. At the moment, the irrigation districts in Kaifeng City faces the great pressure of decreasing agricultural water supply further more, so it is very important to study on the agricultural water-saving potential and increase irrigation water productivity.更多还原