Prepare data for Water Yield

Dear all,
I try to create depth_to_root_rest_layer.tif. In the manual item 4. "Choose Toolbox > GRASS GIS 7 commands > r.reclass from the processing menu to reclassify soil_aoi_32632.tif with the provided reclass rules roots.txt". Does anyone experience on how_to_create/what_is the roots.txt? I stuck here.
All the bests,
Ekvinay
Comments