基于首尾测算法的灌溉水有效利用系数计算  

Effective Utilization Coefficient Calculation of Irrigation Water Based on Head-end Measurement Method

作　　者：靳晓颖[1] 贾洪涛[1] 王汴歌 Jin Xiaoying1 , Jia Hongtao1, Wang Biange2(1. Yellow River Conservancy Technical Institute, Kaifeng 475004, Henan, China; 2. Henan Eastern Administration of Water Conservancy Project, Kaifeng 475004, Henan, Chin)

机构地区：[1]黄河水利职业技术学院,河南开封475004 [2]河南省豫东水利工程段管理局,河南开封475004

出　　处：《黄河水利职业技术学院学报》2018年第1期15-19,共5页Journal of Yellow River Conservancy Technical Institute

基　　金：河南省高等学校重点科研项目计划:基于降落面差异的开封海绵城市雨水资源利用潜力及措施研究(17A570007);开封市2016年科技攻关计划:基于用水流向跟踪和综合完备度的引典灌区真实耗水量研究(1602019);黄河水利职业技术学院科学技术项目:社会经济安全条件下的开封市水资源保障体系研究(2016KXJS001)

摘　　要：灌溉水利用系数在一定程度上能反映灌区的工程质量、灌溉技术和管理水平。首尾测算法因操作简便、可靠性高等优点在全国各大灌区广泛应用。分析了用首尾测算法计算灌溉水利用系数的原理,以河南省三义寨引黄灌区为例,探讨了其计算过程,指出了该方法在毛灌溉用水总量计量、作物需水量计算方法选择、有效降水量系数和地下水利用系数的选取、计算时段的选择等方面存在的问题,并提出了相应的处理建议。Effective utilization coefficient of irrigation water can reflect the engineering quality, irrigation technology and management level of irrigation area. Head-end measurement method has many advantages,such as simple operation and high dependability, etc. It was widely used in large irrigation districts of China. Take the Sanyizhai irrigation district of Henan as an example, it？analyzes the principle of head-end measurement method to calculate the effective utilization coefficient of irrigation water, discusses the calculation process, points out problems in parameter selection when calculating the total amount of irrigation water, crop water requirement, the effective rainfall and groundwater recharge, and puts forward the reasonable suggestions.

关 键 词：三义寨灌区 首尾测算法 灌溉用水有效利用系数 毛灌溉用水总量 净灌溉用水总量 作物需水量 

分 类 号：S273.4[农业科学—农业水土工程]