我国半干旱区常年雨水资源稀缺，所以对于降雨和灌溉水的利用应该以高效且节约为原则。近年来，膜下滴灌等节水灌溉技术的实施提高了水分利用效率，但膜下滴灌的起垄和覆膜的处理在一定程度上改变了农田下垫面条件，降雨的入渗过程会受到一定影响。为了分析膜下滴灌的覆膜及起垄对降雨入渗过程的影响，试验选取下垫面处理、降雨强度、土壤初始含水量三个影响因素，进行了遮雨棚内的人工降雨测坑试验。试验数据分析结果表明：降雨强度对降雨入渗量及入渗深度影响最大；不同下垫面处理中，平整裸地的入渗量及入渗深度最大，起垄次之，覆膜及起垄最小。在一定的降雨强度范围内，垄沟的集雨作用随着雨强的增加而增加，沟内的入渗量增加显著；在起垄及覆膜起垄条件下，膜上水分由于膜的不透水作用和垄沟的集雨作用，分别是膜边和沟中的降雨入渗量最大。当雨强继续增加时，垄沟的集雨作用被削弱，但膜的汇流作用仍然存在，覆膜区域下方的土壤水分都是由膜边的土壤水分经过侧向运移达到，土壤水分的二维入渗过程十分显著。

The annual rainfall in arid area of China's scarce resources, so the utilization of rainfall and irrigation water should be efficient and saving principle. In recent years, the implementation of water-saving irrigation to drip irrigation and water use efficiency was improved, but the treatment of film mulching and ridge,that changing farmland surface conditions on the infiltration process of rainfall will be affected. In order to analysis the film drip irrigation and ridging on rainfall infiltration test, selection of surface treatment, rainfall intensity, initial soil moisture content three factors, were conducted to investigate the effects of artificial rainfall canopy in test pit experiments. The experimental results of data analysis show that the rainfall intensity of rainfall infiltration and infiltration; different surface treatment, infiltration capacity and infiltration depth of the largest flat bare land, ridging times, mulching and ridging in a reduced minimum. The rain intensity range, with the increase of the effect of rain collection furrow with the increase of rainfall, the infiltration ditch ridging and mulching increased significantly; in ridging conditions, membrane water due to rain collection function of the membrane impermeable and furrow, respectively, and the film side ditch of the rainfall infiltration when the rain intensity continues to increase, the effect of rain furrow is weakened, but the confluence film still exists. The soil moisture below is covered by soil water film edge through lateral migration, two-dimensional soil water infiltration process is very significant.