How do I calculate 'c' factor values of USLE equation From NDVI values. pls. Suggest methods to calculate c?
Hello. You can test the following formulas:
Van der Knijff et al. (2000): C = exp[-α NDVI/(β - NDVI)]
De Jong (1994), De Jong et al. (1998): C = 0.431− 0.805 NDVI
Here are the references:
Van der Knijff JM, Jones RJA, Montanarella L (2000) Soil Erosion Risk Assessment in Europe. European Soil Bureau, Joint Research Centre, Space Applications Institute
De Jong SM (1994) Applications of reflective remote sensing for land degradation studies in a mediterranean environment. Nederlandse geografische studies 177, 1994
De Jong SM, Brouwer LC, Riezebos HT (1998) Erosion hazard assessment in the Peyne catchment, France. Working paper DeMon-2 Project. Dept. Physical Geography, Utrecht University
Hi Kalpesh,
I don't know if the NDVI is the right way to determine the C-Faktor.
However, there is a research project called "DynaC" in the University of Halle (Germany). The researcher who works in this project (Dr. Markus Möller) is an expert in assimilate remote sensing data in the USLE...
You should contact him...
Best wishes
Flo
There are various publications from De Jong (1994) and Van der Knijff (2000). However, there are many critics against NDVI for C-factor. Now, in European Commission we implemented a new methodology based on C-factor values in the literature plus Vegetation Density layer coming from COPERNICUS
Dear Borse,
As I know that in mathematic there is a e value like pi value and you can calculate the C factor using e value
C factor= e power NDVI you check the article writing the e value and C factor on searh engines.
Good luck
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