Examples of Sensitivity
ØSome variables have a linear effect
-Erosivity factor R
-Slope steepness
ØEffect of most variables is nonlinear
-Ground cover
-Below ground biomass
-Roughness
Some variables like the erosivity factor and the steepness factor have a linear effect in RUSLE2.  Double the variable; double the effect.
Most variables have a nonlinear effect such that doubling variable has more or less than a doubling effect on soil loss.