甘肃陇中黄土高原农业灌溉耗水系数监测试验研究  

Experimental study on monitoring water consumption coefficient of agricultural irrigation in the loess plateau of longzhong gansu province

作　　者：凡炳文 仲复捷 FAN Bing-wen;ZHONG Fu-jie(gansu lintao hydrology and water resources survey bureau,730500,lintao China)

机构地区：[1]甘肃省临洮水文水资源勘测局,甘肃临洮730500

出　　处：《地下水》2020年第1期83-87,254,共6页Ground water

摘　　要：选择甘肃省临洮县洮惠渠灌区为试验研究区,通过直接观读、自动监测等技术手段,获取试验灌区的引水量、退水量、土壤墒情、降水量及蒸发量等水文基础数据。以水文监测基础数据为依据,采用引排差法、水分平衡法等相结合的方法,开展了农业灌溉耗水系数试验研究。初步试验结果表明:试验灌区灌溉期平均耗水系数为0. 730,典型地块灌溉期平均耗水系数为0. 671,2016年试验灌区降水量较常年偏少13. 0%~26. 3%,总体上属轻度干旱年份。该研究成果可为甘肃陇中黄土高原区水资源管理提供技术支撑。For China’s choice of lintao county,gansu province,hui canal irrigation district experimental study area,through direct read technical means such as automatic monitoring,access to test irrigation water diverted back in hydrology basic data such as rainfall and evaporation of soil moisture based on hydrology monitoring data as the basis,using guide line difference method with the combination of methods,such as water balance method,experimental study carried out agricultural irrigation water use coefficient The preliminary test results show that the average water consumption coefficient in the irrigation period of the experimental irrigated area is 0. 730,and the average water consumption coefficient in the irrigation period of typical plots is 0. 671. The precipitation in the experimental irrigated area in 2016 is 13. 0 % ~ 26. 3 % lower than that of the previous year. On the whole,it is a year of mild drought.

关 键 词：农业灌溉 引排差法 耗水系数 甘肃陇中 

分 类 号：S274.4[农业科学—农业水土工程]