I would like to design ponds in the catchment area. I wonder if in this case it is enough to enter the parameters of the ponds in the .pnd files, or should they also be modificated on the landuse map?
Thank you very much for your professional reply. In the meantime, I was doing SWAT model analysis with modification of .pnd files and additionally with changes on landuse and soil maps. By modifying the maps, the SWAT model recalculated the HRU areas.