Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10120059 | Physics and Chemistry of the Earth, Parts A/B/C | 2005 | 15 Pages |
Abstract
This paper focuses on the analysis of the effects of certain policy measures to reduce diffuse pollution by nitrogen. For this purpose, a model system consisting of an agricultural sector model, a water balance model and a residence time/denitrification model was combined and applied. First results indicate a wide range of annual nitrogen surpluses for the rural areas between less than 10 N haâ1 aâ1 up 200 kg N haâ1 aâ1, or more depending on the type and intensity of farming. Compared to the level of nitrogen surpluses the level of nitrogen inputs into the surface waters is relatively moderate because of degradation processes during transport in soil and groundwater. Policy impact analyses for a nitrogen tax and a limitation of the livestock density stress the importance of regionally adjusted measures.
Keywords
Related Topics
Physical Sciences and Engineering
Earth and Planetary Sciences
Geochemistry and Petrology
Authors
F. Wendland, H. Bogena, H. Goemann, J.F. Hake, P. Kreins, R. Kunkel,