干旱灌区有效降雨量利用率研究  

Study on Effective Rainfall Use Efficiency in Arid Irrigation District

作　　者：徐小波[1] 周和平[1] 王忠[1] 加帕尔·肉孜 

机构地区：[1]新疆维吾尔自治区水利厅水利管理总站,新疆乌鲁木齐830000

出　　处：《节水灌溉》2010年第12期44-46,50,共4页Water Saving Irrigation

基　　金：新疆维吾尔自治区财政预算资助项目(新财预[2009]01)

摘　　要：在年降水50～250 mm,年蒸发量高达1 500～2 500 mm,干旱指数大于7,极为干旱的新疆内陆灌区,农业灌溉水资源显得非常重要,同时,作为雨水资源的有效利用不可忽视。基于有效降水量的多种测验方法,采用某次降雨过程有效降雨利用系数分析和检验,并以点面结合方式,获得可以利用的降雨有效利用系数a经验参数,为灌区有效雨量利用量分析提供依据。In the extremely arid inland irrigation district of Xinjiang,where the annual precipitation is 50～250mm,the annual transpiration amount reaches 1 500～2 500 mm and the arid index is bigger than 7,the agricultural irrigation water resources is extremely importantly.Simultaneously,the effective utilization of rainfall resources cannot be ignored.Based on several testing methods for effective rainfall,the use efficiency of effective rainfall of one rainfall process is tested and analyzed,by means of the mode of point combined with sphere,the experience parameter of effective rainfall use efficiency is obtained to supply base for the utilization of rainfall resources in irrigation district.

关 键 词：内陆干旱区 有效雨量 观测分析 

分 类 号：S27[农业科学—农业水土工程]