论文信息 - Soil Detachment from Clods by Rainfall: Effects of Wind, Mulch Cover, and Initial Soil Moisture

Soil Detachment from Clods by Rainfall: Effects of Wind, Mulch Cover, and Initial Soil Moisture

ABSTRACT When rainfall duration-intensity and clod size were similar for air-dried clods, rainfall detached 2.68 times more soil when accompanied by a 25-mph wind than when there was no wind. Consequently, the probability of wind accompanying rain is an important con-sideration in determining mulch-cover requirements to reduce soil detachment and subsequent sediment transport. When mulch cover and windspeed were similar, much less soil was detached from field-moist than from air-dry clods. Soil detachment from clods by rainfall did not differ among mulches of winter wheat, grain sorghum, and corn if the mulch quantity was expressed as percentage soil cover.

Leon Lyles | N. F. Schmeidler | J. D. Dickerson | L. Lyles

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