水利水电技术2012，Vol.43Issue(11)：87-91,5.
膜孔肥液多向交汇入渗湿润体特性试验研究
Experimental study on wetting body characteristics under film hole bilateral interference-infiltration of fertilizer solution
摘要
Abstract
Based on the lab experiment on the film hole bilateral interference-infiltration of fertilizer solution, the transporting characteristics of the fertilizer solution infiltration wetting front is studied herein, and then the empirical models for both the transporting distance of the wetting front and the infiltration time are established. The experiment shows that the vertical wetting front transporting velocity of interference interface is higher than that at the center of the film hole; furthermore, the shape of the wetting front of the bilateral interference interface is approximate to be a shape of half ellipse. Moreover, an equation for the vertical section of wetting front shape is also developed and the distribution law of the soil water content is studied as well. This study can provide a reference for the further technical study on the film-hole irrigation.关键词
膜孔灌溉/多向交汇/肥液入渗/湿润体特性Key words
film hole irrigation/bilateral interference/fertilizer solution infiltration/wetting body characteristics分类
农业科技引用本文复制引用
董玉云,费良军..膜孔肥液多向交汇入渗湿润体特性试验研究[J].水利水电技术,2012,43(11):87-91,5.基金项目
国家自然科学基金项目(50579064) （50579064）
兰州交通大学"青蓝"人才工程基金(QL-08-20A) （QL-08-20A）
陕西高校省级重点实验室重点科研项目(03JS041). （03JS041）
