Pattern and process of present tree-limits in the Tärna region, southern Swedish Lapland
Potential natural tree-limits for Betula pubescens, Picea abies, Pinus sylvestris and Alnus incana were assessed in the Tärna region of northern Sweden. Analyses of age structure and annual growth increment were used to draw inferences about tree limit dynamism in relation to climatic variability. T...
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Geographical Society of Finland
1991
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fttsvojs:oai:journal.fi:article/8861 2023-05-15T17:44:37+02:00 Pattern and process of present tree-limits in the Tärna region, southern Swedish Lapland Kullman, Leif 1991-01-01 https://fennia.journal.fi/article/view/8861 en eng Geographical Society of Finland https://fennia.journal.fi/article/view/8861 Copyright (c) 2014 Fennia Fennia; Vol 169 Nro 1 (1991); 25-38 Fennia - International Journal of Geography; Vol 169 No 1 (1991); 25-38 1798-5617 info:eu-repo/semantics/article info:eu-repo/semantics/publishedVersion Peer-reviewed Article 1991 fttsvojs 2020-09-30T22:46:05Z Potential natural tree-limits for Betula pubescens, Picea abies, Pinus sylvestris and Alnus incana were assessed in the Tärna region of northern Sweden. Analyses of age structure and annual growth increment were used to draw inferences about tree limit dynamism in relation to climatic variability. Tree-limits of different species responded sensitively in the above respects although somewhat individualistically, both to climatic warming and cooling during the present century. Despite a long history of human presence in the area the tree-limits are concluded to be in a dynamic equilibrium with climate on a secular time scale. The study does not support a theory that rising levels of atmospheric carbon dioxide should now be seen as enhanced growth of high-elevation trees in general. A long-term tree-ring chronology of spruce indicates a surge of growth from the late 1820s to the mid-1830s, which reasonably led to lasting effects on plant community structure. Article in Journal/Newspaper Northern Sweden Lapland Federation of Finnish Learned Societies: Scientific Journals Online Tärna ENVELOPE(15.263,15.263,65.711,65.711) |
institution |
Open Polar |
collection |
Federation of Finnish Learned Societies: Scientific Journals Online |
op_collection_id |
fttsvojs |
language |
English |
description |
Potential natural tree-limits for Betula pubescens, Picea abies, Pinus sylvestris and Alnus incana were assessed in the Tärna region of northern Sweden. Analyses of age structure and annual growth increment were used to draw inferences about tree limit dynamism in relation to climatic variability. Tree-limits of different species responded sensitively in the above respects although somewhat individualistically, both to climatic warming and cooling during the present century. Despite a long history of human presence in the area the tree-limits are concluded to be in a dynamic equilibrium with climate on a secular time scale. The study does not support a theory that rising levels of atmospheric carbon dioxide should now be seen as enhanced growth of high-elevation trees in general. A long-term tree-ring chronology of spruce indicates a surge of growth from the late 1820s to the mid-1830s, which reasonably led to lasting effects on plant community structure. |
format |
Article in Journal/Newspaper |
author |
Kullman, Leif |
spellingShingle |
Kullman, Leif Pattern and process of present tree-limits in the Tärna region, southern Swedish Lapland |
author_facet |
Kullman, Leif |
author_sort |
Kullman, Leif |
title |
Pattern and process of present tree-limits in the Tärna region, southern Swedish Lapland |
title_short |
Pattern and process of present tree-limits in the Tärna region, southern Swedish Lapland |
title_full |
Pattern and process of present tree-limits in the Tärna region, southern Swedish Lapland |
title_fullStr |
Pattern and process of present tree-limits in the Tärna region, southern Swedish Lapland |
title_full_unstemmed |
Pattern and process of present tree-limits in the Tärna region, southern Swedish Lapland |
title_sort |
pattern and process of present tree-limits in the tärna region, southern swedish lapland |
publisher |
Geographical Society of Finland |
publishDate |
1991 |
url |
https://fennia.journal.fi/article/view/8861 |
long_lat |
ENVELOPE(15.263,15.263,65.711,65.711) |
geographic |
Tärna |
geographic_facet |
Tärna |
genre |
Northern Sweden Lapland |
genre_facet |
Northern Sweden Lapland |
op_source |
Fennia; Vol 169 Nro 1 (1991); 25-38 Fennia - International Journal of Geography; Vol 169 No 1 (1991); 25-38 1798-5617 |
op_relation |
https://fennia.journal.fi/article/view/8861 |
op_rights |
Copyright (c) 2014 Fennia |
_version_ |
1766146863748087808 |