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Spatial distributed leaching modelling to identify agricultural areas with high risk for leaching; final report
Autor:innen
Herausgeber
Quelle
Schlagwörter
Pflanzenschutzmittel, Grundwasser, Risikobewertung
Förderkennzeichen (FKZ)
3716 67 409 0
Forschungskennzahl
67
Zitation
Klein, M., Klein, J., Thomas, K., Trapp, M., Hannappel, S., & Seifert, S. (2026). Protect groundwater from plant protection products (Germany. German Environment Agency, ed.). https://doi.org/10.60810/openumwelt-8431
Zusammenfassung englisch
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.
Übersetzungen
Verbundene Publikation
Protection of the groundwater against loads of plant protection products: validation of the new EU-simulation model FOCUS PELMO 4 for a reliable prediction of the leaching potential of PPP into groundwater - Part B
(Umweltbundesamt, 2019)
The European scenario Hamburg used in the tiered approach for groundwater risk assessment of plant protection products in Europe (FOCUS) is evaluated to ascertain whether it also represents and covers German environmental conditions. A German wide analysis using geodata provides evidence that national environmental soil and climate conditions are not suitably covered by the European scenario Hamburg. A national scenario development is scientifically recommended to appropriately protect groundwater against plant protection products in Germany. Model uncertainties and further scientific investigations are critically discussed in this context.