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Effects of future N deposition scenarios on the Galloway region of SW Scotland using a coupled sulphur and nitrogen model (MAGIC-Wand).

Fermer, R.C.; Jenkins, A.; Cosby, B.J.; Helliwell, R.C.; Wright, R.F.; Bulger, A.J.. 1995 Effects of future N deposition scenarios on the Galloway region of SW Scotland using a coupled sulphur and nitrogen model (MAGIC-Wand). Water, Air and Soil Pollution, 85 (2). 707-712. 10.1007/BF00476912

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Abstract/Summary

The Galloway region of Southwest Scotland has been subject to decades of acidic deposition which has resulted in damage to soils, surface waters and aquatic biota. A survey of lochs was conducted in 1979, 1988, and 1993, over which time there have been dramatic changes in total sulphur and nitrogen deposition. The MAGIC model successfully reproduced the major chemical changes in water chemistry from 1979 to 1988 during which time there was a rapid decline in sulphur deposition. A new coupled sulphur and nitrogen model (MAGIC-WAND) has been used to evaluate the regional hydrochemical response to changing patterns of N & S deposition from the period 1988 to 1993. Details of the model structure and parameterisation are discussed. The model under-predicts the response of non-marine sulphate in the region suggesting that there has been a slight increase in deposition over this period. Future hydrochemical responses to different nitrogen deposition scenarios are presented, indicating that the potential increase of nitrogen in surface waters is closely linked to the age and extent of different mosaics of commercial afforestation within the individual catchments.

Item Type: Publication - Article
Digital Object Identifier (DOI): 10.1007/BF00476912
Programmes: CEH Programmes pre-2009 publications > Water
CEH Sections: _ Pre-2000 sections
ISSN: 0049-6979
Additional Keywords: Acidification, modelling, nitrogen, land-use, MAGIC-WAND
NORA Subject Terms: Hydrology
Atmospheric Sciences
Date made live: 22 May 2009 16:08
URI: http://nora.nerc.ac.uk/id/eprint/7254

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