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The Experimental Researches on the Technology of High Utility of Rainwater on Sloping Farmland

Published by the American Society of Agricultural and Biological Engineers, St. Joseph, Michigan www.asabe.org

Citation:  Paper number  032208,  2003 ASAE Annual Meeting . (doi: 10.13031/2013.13800) @2003
Authors:   Ren Shumei, Yang Peiling, Gutao, Liu Honglu
Keywords:   Sloping farmland, Wheat straw mulch, Preservation of soil moisture, Numerical simulation

The experimental research on soil moisture preservation on sloping farmland was carried out by artificial rainfall simulation. The character of soil moisture movement in rain and after rain on sloping farmland was discussed by artificial rainfall simulation in the condition of wheat straw mulch. A better mulch way that is benefit to germination is proposed according to experimental results. . The infiltration law on sloping farmland in rainfall was studied. The technology of soil moisture preservation with wheat straw mulch is one of available measures of high utility of rainwater. Based on the principles of soil water dynamics, a numerical model to simulate soil moisture on sloping farmland under rainfall condition was proposed in the paper. A simple computational method is given to analyze the process of rainfall, infiltration and runoff.

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