Chemicals, Soil | Land, Water
Protect groundwater from plant protection products
Spatial distributed leaching modelling to identify agricultural areas with high risk for leaching
The aim of the research project was to investigate the relevance of spatial distributed leaching modelling (SDLM) for the national groundwater exposure assessment in the context of authorisation of plant protection products. Surface runoff, macropore flow and drainage in the unsaturated soil zone were considered alongside matrix flow for reliable prediction of active substances and metabolites. The report contains analysis of the influence of the additionally implemented processes on the soil water balance and the prediction of percolate water concentrations. Alternative climate-soil-scenarios were selected that represent examples of areas with high leaching potential.