Slope Length for Eroding Portion of Slope
ØOnly works for simple slopes
ØTraditional definition
-Distance from origin of overland flow to concentrated flow or to where deposition begins
-Definition is flawed for strips and concave:convex slopes
ØBest approach: Use overland flow slope length and examine RUSLE2 slope segment soil loss values
This approach is the traditional way of applying erosion prediction for conservation planning.
It is still a good method for simple situations.
Sometimes determining where deposition begins is a problem on concave slopes.
RUSLE2 determines that location. The location varies on a daily basis as conditions vary daily.