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Advances in Geosciences An open-access journal for refereed proceedings and special publications
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Volume 27 | Copyright
Adv. Geosci., 27, 139-144, 2010
https://doi.org/10.5194/adgeo-27-139-2010
© Author(s) 2010. This work is distributed under
the Creative Commons Attribution 3.0 License.

  09 Dec 2010

09 Dec 2010

Modelling of nitrogen turnover and leaching in Saxony

M. Gebel1, S. Halbfaß1, S. Bürger1, H. Friese2, and S. Naumann2 M. Gebel et al.
  • 1Gesellschaft für Angewandte Landschaftsforschung (GALF) bR, Dresden, Germany
  • 2Saxon State Agency of the Environment, Agriculture and Geology, Dresden, Germany

Abstract. From 2005 to 2009 we modelled the input of nitrogen and phosphorus in waters in the area of the Federal State of Saxony (Germany). The model results are an important component in elucidating the present situation of nutrient loads in groundwater and surface water as well as its future development. The present contribution focuses on the modelling of diffuse nitrogen leaching on arable land. Processes of mobilization and immobilization of nitrogen are included in the modelling. They will be estimated as induced by the respective types of fruit, management practices and local conditions. Source areas can be derived using the relationship of nitrogen sources (mobilization, deposition) and sinks (immobilization, denitrification) on the regional scale.

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