Slope Length and Surface Residue Influences on Runoff and Erosion

Authors

John E. Gilley, University of Nebraska-LincolnFollow
S. C. Finkner, University of Nebraska-Lincoln
G. E. Varvel, University of Nebraska-LincolnFollow

Date of this Version

1-1987

Comments

Published in the Transactions of the ASAE 30(1) (January-February 1987): 148-152.

Abstract

Runoff rate, runoff velocity , sediment concentration and soil loss rate of rills or overland flow channels were measured at selected downslope distances on plots with varying rates of sorghum and soybean residue, runoff rate, runoff velocity and soil loss rate usually increased with downslope distance. In general, the presence of greater amounts of crop residue reduced sediment concentration and soil loss rate along the entire slope length. Substantial variations in runoff rate, runoff velocity, sediment concentration and soil loss rate were found with downslope distance on some residue treatments.