Water, Air, and Soil Pollution

, Volume 85, Issue 3, pp 1801–1806 | Cite as

Describing soil SO42− dynamics in the solling roof project with two different modelling approaches

  • C. Alewell
  • B. Manderscheid
  • A. Lükewille
  • P. Koeppe
  • J. Prenzel
Part VII Recovery from Acidification


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 of acidification. Our aim was to compare two modelling approaches: The model MAGIC (Cosby et al., 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 Solling 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.


Precipitation SO42 Field Data Soil Solution Gradual Decrease 
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Copyright information

© Kluwer Academic Publishers 1995

Authors and Affiliations

  • C. Alewell
    • 1
  • B. Manderscheid
    • 1
  • A. Lükewille
    • 2
  • P. Koeppe
    • 3
  • J. Prenzel
    • 3
  1. 1.BITÖK, Dep. of Soil EcologyUniversity of BayreuthBayreuth
  2. 2.NIVAOslo
  3. 3.Dep. of Soil Science and Plant NutritionUniversity of GöttingenGöttingen

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