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  Using Soil Erosion Modeling for Improved Conservation Planning: 
A GIS-based Tutorial

 

Computing RUSLE3D using GRASS

Given data: 
raster:
elevation
K factor
C factor
(P) 
constants: R=220, grid resolution=3m
Computation 
1. r.flow elevation dsout=flowacc
 
2. r.slope.aspect  elevation slope=slope 
(not needed if you already 
have slope from RST)
 
3. r.mapcalc
      lsfac=
           1.4*exp(flowacc*3./22.1,0.4)*exp(sin(slope)/0.09,1.4)	
      soilloss=R*K*C*P*lsfac
 
4. r.colors  soilloss co=rules 
(suggested rules and colortable)

Up
ArcView Commands for Computing RUSLE
ArcMAP Commands for Computing RUSLE
GRASS Commands for Computing RUSLE3d

 

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