【摘要】 从灌溉用水有效利用系数首尾测算法的原理出发,通过实例研究测算出2012年度河南省三义寨引黄灌区农业灌溉用水有效利用系数,并将测算结果与全国大型灌区灌溉水有效利用系数现状对比,确定其合理性,进而分析了该方法的优点与不足。通过测算,掌握了该区域农业灌溉用水有效利用状况,为今后通过加强实际灌溉面积和机电井提水灌溉水量的统计工作来经常性分析测算该区域的农业灌溉用水有效利用系数提供参考。更多还原

【Abstract】 Based on the principle of the head-tail method for effective coefficient of irrigative water utilization,a case study on effective coefficient of irrigative water utilization in Sanyizhai irrigation area,Henan Province was conducted in 2012. In order to analyze the rationality,advantage and disadvantage of the method,measured data was compared with the national current situation. This research could form a better understanding of the current situation of regional effective coefficient of irrigative water utilization,and provide a scientific reference for regularly analysis of the effective coefficient of irrigative water utilization,especially for circumstances such as irrigation area expansion and pumping irrigation in the future.更多还原