Long-term regeneration dynamics and successional trends in a northern Swedish coniferous forest stand
The natural age and stand structure of Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies (L.) Karst.), and birch (Betula pubescens Ehrh.) was studied in a virgin forest stand in northern Sweden. The stand has been unaffected by fire during the past 500 years. It is suggested that the vari...
Published in: | Canadian Journal of Botany |
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Language: | French |
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Canadian Science Publishing
1987
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Online Access: | http://dx.doi.org/10.1139/b87-114 http://www.nrcresearchpress.com/doi/pdf/10.1139/b87-114 |
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crcansciencepubl:10.1139/b87-114 2024-09-15T18:26:07+00:00 Long-term regeneration dynamics and successional trends in a northern Swedish coniferous forest stand Steijlen, Ingeborg Zackrisson, Olle 1987 http://dx.doi.org/10.1139/b87-114 http://www.nrcresearchpress.com/doi/pdf/10.1139/b87-114 fr fre Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Botany volume 65, issue 5, page 839-848 ISSN 0008-4026 journal-article 1987 crcansciencepubl https://doi.org/10.1139/b87-114 2024-08-29T04:08:47Z The natural age and stand structure of Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies (L.) Karst.), and birch (Betula pubescens Ehrh.) was studied in a virgin forest stand in northern Sweden. The stand has been unaffected by fire during the past 500 years. It is suggested that the variations in age structure and invasion pattern are the result of low-frequency climatic fluctuations influencing seed production, germination, and early survival of seedlings. The periods of climatic amelioration that occurred during the 1870s and during this century have been especially favourable to pine, resulting in a pine-dominated regeneration underneath a tree layer where spruce and birch are the most abundant species. This is contrary to generally accepted theories concerning postfire successional trends in this part of the boreal zone. It is concluded that small gap-phase replacement of trees by climatically induced regeneration and mortality events probably is the reason for the general weak correlation between age and size of trees. It is also concluded that this postfire succession will not lead to a total spruce dominance during a continuous succession under prevailing climate regimes. Article in Journal/Newspaper Northern Sweden Canadian Science Publishing Canadian Journal of Botany 65 5 839 848 |
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Open Polar |
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Canadian Science Publishing |
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crcansciencepubl |
language |
French |
description |
The natural age and stand structure of Scots pine (Pinus sylvestris L.), Norway spruce (Picea abies (L.) Karst.), and birch (Betula pubescens Ehrh.) was studied in a virgin forest stand in northern Sweden. The stand has been unaffected by fire during the past 500 years. It is suggested that the variations in age structure and invasion pattern are the result of low-frequency climatic fluctuations influencing seed production, germination, and early survival of seedlings. The periods of climatic amelioration that occurred during the 1870s and during this century have been especially favourable to pine, resulting in a pine-dominated regeneration underneath a tree layer where spruce and birch are the most abundant species. This is contrary to generally accepted theories concerning postfire successional trends in this part of the boreal zone. It is concluded that small gap-phase replacement of trees by climatically induced regeneration and mortality events probably is the reason for the general weak correlation between age and size of trees. It is also concluded that this postfire succession will not lead to a total spruce dominance during a continuous succession under prevailing climate regimes. |
format |
Article in Journal/Newspaper |
author |
Steijlen, Ingeborg Zackrisson, Olle |
spellingShingle |
Steijlen, Ingeborg Zackrisson, Olle Long-term regeneration dynamics and successional trends in a northern Swedish coniferous forest stand |
author_facet |
Steijlen, Ingeborg Zackrisson, Olle |
author_sort |
Steijlen, Ingeborg |
title |
Long-term regeneration dynamics and successional trends in a northern Swedish coniferous forest stand |
title_short |
Long-term regeneration dynamics and successional trends in a northern Swedish coniferous forest stand |
title_full |
Long-term regeneration dynamics and successional trends in a northern Swedish coniferous forest stand |
title_fullStr |
Long-term regeneration dynamics and successional trends in a northern Swedish coniferous forest stand |
title_full_unstemmed |
Long-term regeneration dynamics and successional trends in a northern Swedish coniferous forest stand |
title_sort |
long-term regeneration dynamics and successional trends in a northern swedish coniferous forest stand |
publisher |
Canadian Science Publishing |
publishDate |
1987 |
url |
http://dx.doi.org/10.1139/b87-114 http://www.nrcresearchpress.com/doi/pdf/10.1139/b87-114 |
genre |
Northern Sweden |
genre_facet |
Northern Sweden |
op_source |
Canadian Journal of Botany volume 65, issue 5, page 839-848 ISSN 0008-4026 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/b87-114 |
container_title |
Canadian Journal of Botany |
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65 |
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5 |
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839 |
op_container_end_page |
848 |
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1810466575231221760 |