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Modelling changes in forest soil chemistry at 16 Swedish coniferous forest sites following deposition reduction

  • Salim Belyazid
  • Olle Westling
  • Harald Sverdrup
Publiceringsår: 2006
Språk: Engelska
Sidor: 596-609
Publikation/Tidskrift/Serie: Environmental Pollution
Volym: 144
Nummer: 2
Dokumenttyp: Artikel i tidskrift
Förlag: Elsevier


The dynamic forest ecosystem model ForSAFE was applied at 16 coniferous forest sites in Sweden to investigate past and future changes in soil chemistry following changes in atmospheric deposition. The simulation shows a considerable historical soil acidification. Acidification in the southwest, where deposition has been greatest, was more expressed in the deepest soil layers, while it was more evenly distributed through the soil profile in central Sweden, and was greater in the upper soil layers in the north. The simulation also shows that a slight recovery took place after the reduction in emissions, but was counteracted by the effect of harvesting. The simulation predicts an increase in the number of acidified sites in the future. The results also suggest that future acidification will be mainly due to the enhanced tree growth resulting from the chronic high deposition of nitrogen and the removal of soil base cations through harvesting. (c) 2006 Elsevier Ltd. All rights reserved.


  • Chemical Engineering
  • forest soils
  • dynamic modelling
  • acidification


  • ISSN: 0269-7491

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