Water Infiltration Characteristics of the Soil with Plastic Film Mulching

In order to study the effect of slope and soil water capacity on the soil with plastic film mulching,artificial rain was used in the lab experiments and the dynamic changes of soil water infiltration rate,the dynamic changes of soil water cumulative infiltration rate under different slope or different soil water capacity were analyzed.The result showed that the slope has little influence on the soil water infiltration and the soil water cumulative infiltration rate when the slope was 15°,30°,45°,but the soil water infiltration and the soil water cumulative infiltration rate would be decreased significantly when the slope was 65°.And the 14kg/m2 or 18kg/m2 soil water capacity had little effect on the soil water infiltration,the soil water infiltration rate and the soil water cumulative infiltration rate would be the maximum when the soil water capacity was 22kg/m2,and be the minimum when the soil water capacity was 10kg/m2.