Amount of direct runoff on agricultural soils in Germany (WMS)

The map of the direct runoff on agricultural soils gives an overview of the average annual amount of precipitation, which does not infiltrate into the soils. It is based on pedological, relief and climatic factors. The map was created by using the empirical SCS – runoff curve number approach. The method was adapted by the Federal Institute for Geosciences and Natural Resources (BGR) as part of the attempt to model the seepage volume in the TUB_BGR method. The land use stratified soil map of Germany at scale 1:1,000,000 was used as pedological input to the model. The relief data was derived from the DEM50 of the BKG. The mean annual precipitation data of the period 1961 -1990 (DWD) is used as an input as well. The land use information is derived from CORINE Land Cover data set (2006).