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Assessing the risk of N leaching from forest soils across a steep N deposition gradient in Sweden.

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Author

  • Cecilia Akselsson
  • Salim Belyazid
  • Sofie Hellsten
  • Malin Klarqvist
  • Gunilla Pihl-Karlsson
  • Per-Erik Karlsson
  • Lars Lundin

Summary, in English

Nitrogen leaching from boreal and temporal forests, where normally most of the nitrogen is retained, has the potential to increase acidification of soil and water and eutrophication of the Baltic Sea. In parts of Sweden, where the nitrogen deposition has been intermediate to high during recent decades, there are indications that the soils are close to nitrogen saturation. In this study, four different approaches were used to assess the risk of nitrogen leaching from forest soils in different parts of Sweden. Nitrate concentrations in soil water and C:N ratios in the humus layer where interpreted, together with model results from mass balance calculations and detailed dynamic modelling. All four approaches pointed at a risk of nitrogen leaching from forest soils in southern Sweden. However, there was a substantial variation on a local scale. Basing the assessment on four different approaches makes the assessment robust.

Publishing year

2010

Language

English

Pages

3588-3595

Publication/Series

Environmental Pollution

Volume

158

Issue

12

Document type

Journal article

Publisher

Elsevier

Topic

  • Physical Geography

Status

Published

ISBN/ISSN/Other

  • ISSN: 0269-7491