赵口灌区灌溉水有效利用系数测算分析

Analysis on Calculation of Effective Utilization Coefficient of Irrigation Water in Zhaokou Irrigation District

为掌握赵口灌区农业灌溉用水效率,基于首尾测算法测定赵口灌区2022年度灌溉水有效利用系数,并将结果与省内其他大型灌区对比,以确定其合理性。结果表明:首尾测算法能够较好适用于赵口灌区,赵口灌区上游片区、中游片区及全灌区灌溉水有效利用系数分别达到0.473、0.529、0.518,全灌区灌溉用水效率高于河南省平均水平,符合灌区用水实际,可为灌区农业用水管理提供理论依据。最后,针对灌区目前存在的问题提出建议。

In order to grasp the water use efficiency of agricultural water in Zhaoko Irrigation District,based on head-tail caculation method,the effective utilization coefficient of irrigation water utilization in Zhaoko Irrigation District for 2022 is determined.The results are compared with the other large-scale irrigation areas in Henan Province to determine its rationality.The results show that the head-tail caculation method can be well applied to the Zhaokou Irrigation Area.The effective utililzation coefficient of irrigation water utilization in the upstream reaches,middle reaches and entire irrigation area of Zhaoko Irrigation District reach 0.473,0.529,O.518.The effective utililzation coefficient of irrigation water utilization in the entire irrigation area is higher than the average level in Henan Provinc,which is in line with actual utilization of agricultural water,and can provide a theoretical basis for agricultural water management in the irrigation area.Finally,suggestions are proposed to solve the current problems of water management in the irrigation area.