- TRK (N,P)
The TRK system combines;
- Preparation of areal distribution of different land-use categories and positioning of point sources using GIS;
- Calculations of concentration and areal losses of diffuse sources (for N from arable land by using the dynamic soil profile model SOILNDB);
- Calculations of the water balance (by using the distributed dynamic HBV model) and N transport and retention processes in water (by using the model HBV-N).