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

Research output: Contribution to journalArticle


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.


  • Salim Belyazid
  • Olle Westling
  • Harald Sverdrup
Research areas and keywords

Subject classification (UKÄ) – MANDATORY

  • Chemical Engineering


  • forest soils, dynamic modelling, acidification
Original languageEnglish
Pages (from-to)596-609
JournalEnvironmental Pollution
Issue number2
Publication statusPublished - 2006
Publication categoryResearch