Soil & tillage research vol:61 issue:1-2 pages:55-60
Historically, research on water runoff and soil erosion has been conducted mainly at the plot scale, with slope gradient being one of the dominant controlling factors. However, tillage-induced roughness can also significantly impact runoff and erosion, and therefore runoff patterns on a field scale can be very different from the runoff pattern that would be predicted from topography alone. A model and methodology were developed to account for oriented tillage effects on runoff patterns. Results suggests that the prediction of soil erosion and deposition within a field, as well as total soil loss from a field, can be significantly improved by combining the effects of tillage-induced runoff patterns with detailed topographic data. (C) 2001 Elseviel Science B.V. All rights reserved.