垄膜覆盖膜孔沟灌技术要素试验研究  

Study on technical variables in film hole furrow irrigation with plastic-covered ridge

作　　者：李援农[1] 张晓鹏[1] 费良军[1] 李方红[1] 

机构地区：[1]西安理工大学水资源研究所

出　　处：《干旱地区农业研究》2006年第4期33-35,186,共4页Agricultural Research in the Arid Areas

基　　金：国家自然基金项目5059064;国家"十五"节水农业重大专项(2002AA2Z4041)

摘　　要：膜孔灌溉技术是一种集农业节水与灌溉节水于一体的节水灌溉技术,但该灌水技术的技术要素研究还不甚完善。根据目前该技术应用情况,选择了开孔直径、开孔率、单宽流量和地面坡度四因素、三水平,采用正交试验设计方案,得出了对于适宜垄膜覆盖的中等入渗强度区域较为合理的技术要素组合为:孔径5 cm,开孔率为3%,单宽流量为3 L/(s.m)和地面坡度为2‰。Irrigation on film hole is a water saving method in both agronomic and irrigating aspects, but it is still imperfect in the technical factors. Based on the technique applying actuality, the orthogonal test project with four factors （including film hole diameter, film hole rate, flux per unit width and ground slope） and three levels was conducted. The results indicated that the optimal technical combination for the moderate infiltration soil area being suitable to film mulch on ridges was： hole diameter 5cm, film hole rate 3%, flux per unit width 3 L/（s. m） and ground slope 2‰.

关 键 词：垄膜覆盖 膜孔灌水 技术要素 

分 类 号：S275.3[农业科学—农业水土工程]