Towards European Harmonised Procedures for Quantification of Nutrient Losses from Diffuse Sources -

- TRK (N,P)

Keywords: identification, mathematical modelling, GIS mapping, quantification, nutrients, nutrient leaching

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).

Links:

http://www.euroharp.org/toolbox/

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