Studies on Ecological Effect of Water-Permeability Plastic Membrane Mulching in Rainfed Wheat Field

In this experiment it use three treatments,including water-Permeability Plastic Membrane Mulching,common plastic film mulching and open grounding yield.studying their many effects of three treatments.The result show: water-permeability plastic membrane could make rain penetrate into soil,prevent water evaporation from topsoil in all growing period.it is most evident in the topsoil.soil moisture content of water-Permeability Plastic Membrane increased 0.65 percent than common plastic film during the whole growing period.The yield of the water-permeability plastic membrane mulching was hi her 505.3kg/hm~2 than common plastic film mulching yield and increased by 13.2%,their variance reaching 0.01 significant level.In the same condition,Water utilizatiin of water-permeability plastic membrane mulching was higher than that of the other two treatments,increased by 25.1% than open ground and increased by 8.6% than common plastic film mulchuing.