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Anna Maria Jönsson

Professor

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Recorded storm damage in Swedish forests 1901-2000

Author

  • Carin Nilsson
  • Ingrid Stjernquist
  • Lars Bärring
  • P Schlyter
  • Anna Maria Jönsson
  • H Samuelsson

Summary, in English

Severe storm damage has been a recurring problem to the Swedish forestry sector since, at least, the start of the 19th century. This short communication presents a regionally resolved time-series of storm damage in Swedish forests during the last century. Data on storm damage have been gathered from the National Board of Forestry, the Regional Forestry Boards and scientific reports. Storm damage in Swedish forests seems to have increased during the century with a peak around the 1980s. In total 110 million m 3 forest were destroyed by 77 recorded wind storms, with the severe storms in 1954 and 1969 accounting for 49% of the total damage. Reported damage in southern Sweden was normalised against the area of productive forest with trees older than 40 years, for inter annual comparisons. The geostrophic wind was used to describe the regional wind direction during the storm events. Most damage occurred during NNW to SW winds, and by winds from NNE. Apart from a possible shift in storm intensity and frequency, the increase in storm damaged trees can be attributed to changes in regeneration and thinning regimes, variations in storm damage reporting system, increase in forest cover and various damage to root architecture.

Department/s

  • Dept of Physical Geography and Ecosystem Science
  • Department of Biology

Publishing year

2004

Language

English

Pages

165-173

Publication/Series

Forest Ecology and Management

Volume

199

Issue

1

Document type

Journal article

Publisher

Elsevier

Topic

  • Ecology
  • Physical Geography

Status

Published

ISBN/ISSN/Other

  • ISSN: 1872-7042