中文摘要：

地膜覆盖对于滴灌土壤湿润区的形状和大小有很大的影响，灌水结束后，测得无膜和覆膜以及不同的覆膜深度的土壤湿润体是不同的。通过灌水试验，研究沙土和中壤土在相同的单滴头流量和灌水量，不同的地膜膜边的埋深条件下，膜边的埋深对于滴灌土壤湿润区的影响机理。试验过程中观测了土壤水平和垂直湿润锋随时间的运移和地膜覆盖以后，土壤水分的运动规律，同时和无膜的土壤湿润体进行对比。

英文摘要：

The After irrigatio plastic mulching cover has tremendous influence on th n, the soil moist bodies are different each other under e soil moist area shape and the size. with membrane, without membrane and different membrane tectorial depth. Based on irrigation experiment, this article studies the mechanism of effects of membrane rectorial depth on drip irrigation soil moist area. In the test, the soil moisture movement law is observed under with membrane and without membrane.