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Describing soil SO42- dynamics in the Solling roof project with 4 two different modelling approaches

Alewell, C. and Manderscheid, B. and Lükewille, A. and Koeppe, P. and Prenzel, J.. (1995) Describing soil SO42- dynamics in the Solling roof project with 4 two different modelling approaches. Water, air and soil pollution, Vol. 85, no. 3. S. 1801-1806.

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Official URL: http://edoc.unibas.ch/dok/A5251191

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Abstract

The release of previously stored soil SO42- is tightly connected with the reversibility of soil and water acidification. Thus soil SO42- dynamics have to be included when predicting the reversibility acidification. Our aim was to compare two modelling approaches: The model MAGIC (Cosby ct at, 1985) describes SO42- dynamics with the Langmuir sorption isotherme. In the SO-MODEL (Prenzel, 1991) a precipitation/dissolution of jurbanite is defined. Even though it was possible to calibrate both models to lysimeter data of the Selling D1 site in 1 m depth, the prognosis for SO42- concentrations in the soil solution differed significantly. While MAGIC predicted the observed gradual decrease of SO42- concentration with decreasing deposition, the SO-MODEL calculated stable concentrations up to the year 2026 followed by a sudden drop. Because the prognosis established with the SO-MODEL is incompatible with observed field data, we concluded that the predicted SO42- dynamic of the SO-MODEL was unrealistic.
Faculties and Departments:05 Faculty of Science > Departement Umweltwissenschaften > Institut für Umweltgeowissenschaften > Umweltgeowissenschaften (Alewell)
UniBasel Contributors:Alewell, Christine
Item Type:Article, refereed
Bibsysno:Link to catalogue
Publisher:Kluwer
ISSN:0049-6979
Note:Publication type according to Uni Basel Research Database: Journal article
Last Modified:22 Mar 2012 14:28
Deposited On:22 Mar 2012 14:02

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