Sammanfattning

The vegetation in an area of the ombrotrophic bog Skagershultsmossen, South-Central Sweden, was mapped in 2010. The same area was previously surveyed in 1907 and 1970. Only small changes were found in 1970, in contrast to the situation in 2010, when a large shift in the vegetation was observed. The previously dominating vegetation type, lawns dominated by Eriophorum vaginatum, had more or less disappeared and was replaced by carpet vegetation dominated by Rhynchospora alba, Sphagnum tenellum and S. balticum. Also, the carpets dominated by Scheuchzeria palustris had decreased to a large extent. There are several possible climatic explanations behind the changes, and we suggest that increased frost action linked to the reduction in snow cover may be important. The shift in the vegetation has most certainly led to a decrease in peat productivity and, hence, a reduction in carbon sequestration by the bog is assumed. Skagershultsmossen is an important reference site for future studies of long-term vegetation changes.

Nyckelord

frost; long-term study; reduced peat productivity; South-Central Sweden; vegetation shift

Publicerad i

Mires and Peat
2023, Volym: 29, artikelnummer: 18

SLU författare

• Gunnarsson, Urban

  • SLU Artdatabanken, Sveriges lantbruksuniversitet
    

UKÄ forskningsämne

Ekologi


Publikationens identifierare

DOI: https://doi.org/10.19189/MaP.2023.OMB.Sc.2004364

Permanent länk till denna sida (URI)

https://res.slu.se/id/publ/123526