WATEMWater and Tillage Erosion Model
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Two inputs are required for the tillage component of WATEM; a digital elevation model (to compute slope changes) and a tillage transport coefficient ([k.sub.till]).
In this study, total erosion ([.sup.137]Cs) was compared only with tillage and water erosion estimates derived with WATEM. A visual comparison of total and tillage-water erosion spatial patterns shows that the total erosion ([.sup.137]Cs) spatial patterns closely follow the field's topographic features in the same way as does the pattern of combined tillage and water erosion.
Estimates of soil erosion from all WATEM derived erosion maps were paired with total erosion estimates at [.sup.137]Cs sampled locations.
Tillage erosion was not correlated to water erosion as predicted by the WaTEM model, indicating that areas with high tillage erosion did not necessarily correspond with areas of high water erosion.