神灵电灌区农田灌溉水有效利用系数测算评估  

Calculation and evaluation of effective utilization coefficient of farmland irrigation water in Shenling electric irrigation district

作　　者：于凤存 张军 YU Fengcun;ZHANG Jun(Anhui&Huaihe River Institute of Hydraulic Research,Key Laboratory of Water Conservancy and Water Resources of Anhui Province,Hefei 230088,China;Feixi County Water Affairs Bureau,Hefei 230000,China)

机构地区：[1]安徽省水利部淮河水利委员会水利科学研究院(水利水资源安徽省重点实验室),安徽合肥230088 [2]肥西县水务局,安徽合肥230000

出　　处：《安徽农学通报》2023年第21期106-110,共5页Anhui Agricultural Science Bulletin

基　　金：安徽省自然科学基金项目(2208085US15)。

摘　　要：为评估农业灌溉用水效率,本文采用直接量测法与观测分析法确定主要农作物的净灌溉定额。根据各类作物的实际灌溉面积推算灌区的净灌溉用水量,以及灌区管理站提水记录与灌区内塘坝复蓄系数推算神灵电灌区毛灌溉用水总量,通过首位测算法求灌区农田灌溉水有效利用系数,以此测算了神灵电灌区农田灌溉水有效利用系数。结果表明,神灵电灌区系数从0.5513提升至0.5889,主要得益于配套工程的更新改造与灌区日益完善的管理维护工作。To evaluate the efficiency of agricultural irrigation water in Shenling electric irrigation district,this paper evaluated the net irrigation quota of main crops which determined by direct measurement method and observation analysis method,then the net irrigation water consumption was calculated according to the actual irrigated area of various crops,and the gross irrigation water consumption was calculated according to the water extraction record of the irrigation station and the restorage coefficient of the pond dam in the irrigated area.The effective utilization coefficient of farmland irrigation water was calculated by the first measurement method which were used to calculate the effective utilization coefficient of farmland irrigation water.The results show that the coefficient increases from 0.5513 to 0.5889 in the past five years,mainly due to the renovation of supporting projects and the improvement of management and maintenance of irrigation area.

关 键 词：灌溉水有效利用系数 首尾测算法 净灌溉用水量 蒸发蒸腾水量 节水灌溉制度 

分 类 号：S277[农业科学—农业水土工程]