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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Abstract
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 | ||||
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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: | 196 | ||||
Number of Pages: | 44 | ||||
Papers/manuscripts: |
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Place of Publication: | Alnarp | ||||
ISBN for printed version: | 91-576-6080-8 | ||||
ISSN: | 1401-6230 | ||||
Language: | English | ||||
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 | ||||
URN:NBN: | urn:nbn:se:slu:epsilon-e-5423 | ||||
Permanent URL: | http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-e-5423 | ||||
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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