I managed to get subbasins for my catchment (7 km^2) with their areas but I haven't figured out how to get the LS factor (see Revised Universal Soil Loss Equation) from it.
I have the vector file for my subbasins and I have the DEM (digital elevation model) file. I extracted the LS raster file from the DEM file (via r.watershed) but I dont know what to do afterwards. I figured I can isolate the subbasins within the LS raster file and calculate the average LS factor of those areas. Do you know how to do this?
On a side note, is there a way to split up the subbasins since there are slopes that are steep with slopes that are flat? Thanks in advance.