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Natural regeneration of broadleaved tree species in southern Sweden

effects of silvicultural treatments and seed dispersal from surrounding stands

Karlsson, Matts (2001). Natural regeneration of broadleaved tree species in southern Sweden. Diss. (sammanfattning/summary) Alnarp : Sveriges lantbruksuniv., Acta Universitatis Agriculturae Sueciae. Silvestria, 1401-6230 ; 196
ISBN 91-576-6080-8
[Doctoral thesis]

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The objective of the present thesis was to examine the effects of silvicultural treatments and seed dispersal from surrounding stands on the establishment of natural regeneration of broadleaved tree species in southern Sweden. Most of the broadleaved tree species that occur naturally in forests in southern Sweden were studied but birch (Betulapendula Ehrh.1 B. pi~besceizs Roth) was the most common species and present in equal numbers in all studies. The wind dispe.rsa1 of see.ds of se.ven species was studied and great variations were found. This could mainly be explained by differences in seed morphology. The effect of soil scarification was examined in all five studies and was generally found to be positive for the establishment of the studied broadleaved species. However, in some cases the scarification was not positive for the establishment. The reason for t l i s was hypothesised to be that the seed supply was limited, or an effect of large and/or animal-dispersed seeds. The effect of shelterwood w a s examined in three studies and was found to be positive for animal-dispersed species but negative for shade-intolerant species, although a sparse shelterwood can be used to rcgcncratc birch. Slash removal was included in onc study and found to be positive for thc cstnblishrncnt of birch. This thcsis showccl that regeneration trcatmcnts can be used to incrcasc the e.stablishnent of naturally regene.rated broadleaved tree seedlings, but the stand structure and species composition must be regulated with pre-commercial thinning. However, the effect of variations in seed production and seed dispersal must be closely examined from a time and a space perspective prior to any forecasts regarding the effects of regeneration trcatrnc

Authors/Creators:Karlsson, Matts
Title:Natural regeneration of broadleaved tree species in southern Sweden
Subtitle:effects of silvicultural treatments and seed dispersal from surrounding stands
Series Name/Journal:Acta Universitatis Agriculturae Sueciae. Silvestria
Year of publishing :January 2001
Number of Pages:44
ALLI. Nilsson, U., Gemmel, P., Johansson, U. Karlsson, M. BL Welander, T. Natural regeneration of Norway spruce: Scots pine and birch under Norway spruce shelterwoods of varying densities on mesic-dry site in southern Sweden. Forest Ecology and Management. In press. II. Karlsson, M. & Nilsson, U. The effect of scarification and shelterwood treatments on naturally regenerated seedlings of occurring tree species in southern Sweden. Manuscript. III. Karlsson, M., Nilsson, U. & Orlander, G. Natural regeneration in clearcuts - effects of scarification, slash removal and clearcut age. Submitted manuscript. IV. Karlsson, M. Seed dispersal from broadleaved stands and effects of scarification on seedling emergence. Manuscript. V. Karlsson, M., Vollbrecht, T. & Nilsson, U. Stand structure in naturally regenerated broadleaved stands - effects of shelterwood, scarification and pre-commercial thinning. Manuscri
Place of Publication:Alnarp
ISBN for printed version:91-576-6080-8
Publication Type:Doctoral thesis
Full Text Status:Public
Agris subject categories.:K Forestry > K10 Forestry production
Subjects:Not in use, please see Agris categories
Agrovoc terms:betula pendula, betula pubescens, broadleaved trees, natural regeneration, soil scarification, seed dispersal, stand protection, sweden
Keywords:Broadleaved tree species, establishment, natural regeneration, scarification, seed dispersal, shelterwood, silvicultural treatments
Permanent URL:
ID Code:42
Department:(S) > Southern Swedish Forest Research Centre
Deposited By: Staff Epsilon
Deposited On:04 Jun 2002 00:00
Metadata Last Modified:02 Dec 2014 10:01

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