Soil Loss Assessment Using the Revised Universal Soil Loss Equation (RUSLE) Model
Table 4
C factor algorithms.
Equation
Comments
Reference
Serial number
C = 0.431 − 0.805 × NDVI
A linear relationship is assumed to exist between NDVI and C factor. However, this assumption applies only to photosynthetic and not senescent vegetation
, where = NDVI for mixed pixels = NDVI for pure soil pixels = NDVI for pure vegetation pixels = NIR = red reflectance for pure vegetation pixels = NIR = red for pure soil pixels
It provides the best estimate for vegetation proportion fraction where soil pixels are separated from vegetation pixels. The aim of this approach is to reduce the soil background albedo effects at different moisture levels