2013•Journal of Irrigation and DrainageRequires access
Soil Moisture Infiltration for Varying Mulch Coverage on a Sloped Lou Soil
Cui Su-fan
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Abstract
Alternative coverage strategies were investigated based on orthogonal experiments using indoor artificial rainfall.Rainfall infiltration runoff process for Lou soil surface was analyzed.The results showed that:the amount of cumulative infiltration and infiltration rate increased with the increase of the rainfall intensity at the same infiltration time;at the same rainfall intensity and coverage ratio,there existed a critical gradient slope of about 26.8%.Under certain conditions,the cumulative infiltration and infiltration rate increased with the increase of the coverage area.Rainfall infiltration rate was simulated by the method of runoff ponding under different conditions,and the errors changed from 0.000 2 to 0.012 9 with a higher degree of fitting.