微灌自压软管毛管单双向供水下均匀度的研究  

Study on Irrigation Uniformity under one-way or two-ways Capillary Water Supply of Gravitational Flexible Hose Micro-Irrigation

作　　者：蔡小超[1] 刘焕芳[2] 张海廷[1] 

机构地区：[1]华北水利水电学院水利职业学院,河南郑州450011 [2]石河子大学水利建筑工程学院,新疆石河子832003

出　　处：《节水灌溉》2010年第6期3-5,共3页Water Saving Irrigation

基　　金：国家自然科学基金(50369003)资助项目

摘　　要：自压软管微灌技术是一种较实用的节水节能的灌溉技术,在干旱和半干旱地区得到了迅速推广。在分析单向供水下毛管的水力性能和灌水均匀度的基础上,给出了双向供水下毛管灌水均匀度的研究方法,得出结论同等条件下毛管采用双向供水的灌水均匀度比单向供水高,在典型坡度i=-0.1%、0%、0.1%的条件下,毛管采用双向铺设灌水均匀度比较稳定,一般可铺设60 m,最长可铺设70 m。The gravitational flexible hose micro-irrigation is a practical irrigation technology and widely popularized in arid and semi- arid areas. Based on the analysis of the hydraulic characters and the irrigation uniformity under the one-way water supply, the study method of the irrigation uniformity under two-ways capillary water supply is given in this paper. It is concluded that the irrigation uniformity under two-ways water supply is higher than one-way. Under typical terrain slope, such as 0. 1 %, 0,0. 1%, the uniformity of two-ways water supply capillary is relatively stable, and the generally laying length of capillary is 60 m, the longest laying length can be 70 m.

关 键 词：微灌 单向供水 双向供水 毛管 灌水均匀度 

分 类 号：S275[农业科学—农业水土工程]