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Johansson, David and Wildmark, Linus, 2013. Hur ska tall- och gran bestånd i Götaland gallras för att minska risken för vindskador?. First cycle, G2E. Umeå: SLU, Dept. of Forest Ecology and Management

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Abstract

With knowledge of how the southern Swedish forests have been affected by storms the past years, this study intended to find out which factors affect the storm firmness of a stand the most. The study was based on data from stands in the, by the storm Gudrun, affected area. The results of the analyses that tested the stand factors that influence the amount of storm damage to the greatest extent showed that the storm sensitivity of Norway spruce stands were largely due to previous management actions. The factors that could be controlled by thinning and had relevance of storm damage standpoint, according to the results were; the dominant height, volume, basal area weighted mean diameter and stand age at last thinning. In this study, these results are not as clear for Scots pine. Common for both tree species wass that the stands position in relation to a storm advance is a clearly mattering factor. From the results that the analyse gave, a number of thinning programs for spruce have been simulated. The simulations were made for a thinning of 23.6% thinning strength, two thinnings of 22%, three thinnings of 45% and a thinning of 60% thinning strength. An unthinned control was also simulated.

Main title:Hur ska tall- och gran bestånd i Götaland gallras för att minska risken för vindskador?
Authors:Johansson, David and Wildmark, Linus
Supervisor:Valinger, Erik
Examiner:Mörling, Tommy
Series:Kandidatarbeten i skogsvetenskap / SLU, Fakulteten för skogsvetenskap
Volume/Sequential designation:2012:18
Year of Publication:2013
Level and depth descriptor:First cycle, G2E
Student's programme affiliation:SY001 Forest Science - Master's Programme 300 HEC
Department:(S) > Dept. of Forest Ecology and Management
Keywords:storm, barrträd, skötselprogram
URN:NBN:urn:nbn:se:slu:epsilon-s-2155
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-s-2155
Subjects:Forestry production
Language:Swedish
Deposited On:17 Apr 2013 13:30
Metadata Last Modified:19 Apr 2013 09:00

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