ADGEO Advances in Geosciences ADGEO Adv. Geosci. 1680-7359 Copernicus Publications Göttingen, Germany 10.5194/adgeo-11-69-2007 Determination and ranking of target areas in catchments for the implementation of nitrogen reduction measures Tetzlaff B. 1 Kunkel R. 2 Schäfer W. 2 Wendland F. 1 Research Centre Jülich, Institute of Chemistry and Dynamics of the Geosphere (ICG), Institute IV: Agrosphere, 52425 Jülich, Germany State Authority for Mining, Energy and Geology, Lower Saxony, 30655 Hannover, Germany 13 06 2007 11 69 75 Copyright: © 2007 B. Tetzlaff et al. 2007 This work is licensed under the Creative Commons Attribution-NonCommercial-ShareAlike 2.5 Generic License. To view a copy of this licence, visit https://creativecommons.org/licenses/by-nc-sa/2.5/ This article is available from https://adgeo.copernicus.org/articles/11/69/2007/adgeo-11-69-2007.html The full text article is available as a PDF file from https://adgeo.copernicus.org/articles/11/69/2007/adgeo-11-69-2007.pdf

The implementation of the EU Water Framework Directive (EU-WFD) forms the background of the WAgriCo-project (Water Resources Management in Cooperation with Agriculture). WagriCo concentrates on the development of nitrogen management options adapted to hydrological and agro-economic site conditions and at demonstrating new participation approaches and technologies suitable for setting-up programmes of measures. The article outlines the conceptual model approach and its application in the pilot region "Große Aue" (Northern Germany). Furthermore the process of delineating priority areas is described, which act as spatial targets for the adaptation of regionally differentiated nutrient reduction measures.

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