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Forskningsartikel2010Vetenskapligt granskadÖppen tillgång

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

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

Sammanfattning

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

Nyckelord

Nitrogen leaching; forest; nitrogen retention; modelling; Sweden

Publicerad i

Environmental Pollution
2010, Volym: 158, nummer: 158, sidor: 3588-3595
Utgivare: Elsevier

    Associerade SLU-program

    Sjöar och vattendrag
    Skog
    Övergödning

    UKÄ forskningsämne

    Miljö- och naturvårdsvetenskap
    Skogsvetenskap
    Fisk- och akvakulturforskning

    Publikationens identifierare

    DOI: https://doi.org/10.1016/j.envpol.2010.08.012

    Permanent länk till denna sida (URI)

    https://res.slu.se/id/publ/30769