Soils

The physical soil properties are summarized in the file soils.sol. The physical properties of the soil govern the movement of water and air through the profile and have a major impact on the cycling of water within the HRU.

The contents of nutrients and constituents in the soil are initialized using the file soil_plant.ini, which references the files nutrients.sol for the initial nutrient contents and the files pest_hru.ini, path_hru.ini, hmet_hru.ini, and salt_hru.ini for the initial contents of constituents (pesticides, pathogens, heavy metals, and salts) in the soil.

If HRU-ltes are used instead of HRUs in a SWAT+ setup, the soil properties will be specified in the file soil-lte.sol.