 |
| Titel |
Modelling of point and non-point source pollution of nitrate with SWAT in the river Dill, Germany |
| VerfasserIn |
T. Pohlert, J. A. Huisman, L. Breuer, H.-G. Frede |
| Medientyp |
Artikel
|
| Sprache |
Englisch
|
| ISSN |
1680-7340
|
| Digitales Dokument |
URL |
| Erschienen |
In: Proceedings of the 8th Workshop for Large Scale Hydrological Modelling - Oppurg 2004 ; Nr. 5 (2005-12-16), S.7-12 |
| Datensatznummer |
250002160
|
| Publikation (Nr.) |
 copernicus.org/adgeo-5-7-2005.pdf |
|
|
|
|
|
| Zusammenfassung |
| 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. |
| |
|
| Teil von |
|
|
|
|
|
|
|