摘要
由膜缝入渗试验得出了入渗速度与入渗系数、入渗指数之间的关系。分析了膜缝灌水优势及不同单宽流量、不同封水成数的技术指标 ,从而确定出灌水均匀度及灌溉水的利用率较高、灌水后入渗水量分布均匀的灌水技术参数 。
In this paper, the relationship between infiltration velocity and infillration coefficient, infiltration index is obtained by infiltration experiment through surface membrane crack. The superiority of irrigation through membrane crack and the technical targets under the conditions of separate unit discharge and separate sealing factor are analyzed. The technical parameters of irrigation of higher uniform degree and utilization ratio and uniformly distributed infiltration water are determined to provide the technical instruction for popularization of irrigation technique through membrane crack in irrigation area.
出处
《防渗技术》
2002年第1期6-10,共5页
Technique of Seepage Control
基金
陕西省水利厅科研项目及杨凌职业技术学院基金项目
关键词
膜缝灌溉
膜缝入渗
地膜
小麦
试验
irrigation through membrane crack
infiltration through membrane crack
technical parameter
