Journal article

Authors list: Pohlert, T.; Huisman, J.A.; Breuer, L.; Frede, H.-G.

Publication year: 2005

Pages: 7-12

Journal: Advances in Geosciences

Volume number: 5

DOI Link: https://doi.org/10.5194/adgeo-5-7-2005

Publisher: Copernicus Publications

Abstract: 

We used the Soil and Water Assessment Tool (SWAT) to simulate point and non-point source pollution of nitrate in a mesoscale mountainous catchment. The results show that the model efficiency for daily discharge is 0.81 for the calibration period (November 1990 to December 1993) and 0.56 for the validation period (April 2000 to January 2003). The model efficiency for monthly nitrate load is 0.66 and 0.77 for the calibration period (April 2000 to March 2002) and validation period (April 2002 to January 2003), respectively. However, the model efficiency for daily loads is low (0.15), which cannot only be attributed to the quality of input data of point source effluents. An analysis of the internal fluxes and cycles of nitrogen pointed out considerable weaknesses in the models conceptualisation of the nitrogen modules which will be improved in future research.

Harvard Citation style: Pohlert, T., Huisman, J., Breuer, L. and Frede, H. (2005) Modelling of point and non-point source pollution of nitrate with SWAT in the river Dill, Germany, Advances in Geosciences, 5, pp. 7-12. https://doi.org/10.5194/adgeo-5-7-2005

APA Citation style: Pohlert, T., Huisman, J., Breuer, L., & Frede, H. (2005). Modelling of point and non-point source pollution of nitrate with SWAT in the river Dill, Germany. Advances in Geosciences. 5, 7-12. https://doi.org/10.5194/adgeo-5-7-2005