Dendroclimatic response of Picea mariana and Pinus banksiana along a latitudinal gradient in the eastern Canadian boreal forest
To decipher spatial and temporal tree-growth responses to climate change we used tree-ring data from Picea mariana (Mill.) BSP and Pinus banksiana Lamb. along a latitudinal transect in western Quebec. The transect encompassed the distinct transition between mixed and coniferous forests at approximat...
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Language: | English |
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1999
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Online Access: | http://dx.doi.org/10.1139/x99-073 http://www.nrcresearchpress.com/doi/pdf/10.1139/x99-073 |
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crcansciencepubl:10.1139/x99-073 2024-09-15T18:02:17+00:00 Dendroclimatic response of Picea mariana and Pinus banksiana along a latitudinal gradient in the eastern Canadian boreal forest Hofgaard, Annika Tardif, Jacques Bergeron, Yves 1999 http://dx.doi.org/10.1139/x99-073 http://www.nrcresearchpress.com/doi/pdf/10.1139/x99-073 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Forest Research volume 29, issue 9, page 1333-1346 ISSN 0045-5067 1208-6037 journal-article 1999 crcansciencepubl https://doi.org/10.1139/x99-073 2024-07-11T04:12:02Z To decipher spatial and temporal tree-growth responses to climate change we used tree-ring data from Picea mariana (Mill.) BSP and Pinus banksiana Lamb. along a latitudinal transect in western Quebec. The transect encompassed the distinct transition between mixed and coniferous forests at approximately 49°N. Correlation analyses and principal component analyses were used to identify common spatiotemporal growth patterns, and site- and species-specific patterns since 1825. A moist summer in the year t - 1 and an early start of the current growing season favored growth of both species. A prolongation of the growing season into fall was the most distinguishing factor between the species. A long and gradual climatic gradient shifted to a short gradient with a clear segregation between the southern and northern parts of the transect. This shift, around 1875, was abrupt and characterized by a turbulent climatic period. The observed pattern was likely related to a large-scale shift in the mean position of the Arctic Front that occurred at the end of the 1800s. No discrete climatic setting explained the present switch from mixedwoods to conifers at 49°N. Awareness of such nonequilibrial relations between climate and species distribution is essential when assessing vegetation responses to future climate change. Article in Journal/Newspaper Climate change Canadian Science Publishing Canadian Journal of Forest Research 29 9 1333 1346 |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
description |
To decipher spatial and temporal tree-growth responses to climate change we used tree-ring data from Picea mariana (Mill.) BSP and Pinus banksiana Lamb. along a latitudinal transect in western Quebec. The transect encompassed the distinct transition between mixed and coniferous forests at approximately 49°N. Correlation analyses and principal component analyses were used to identify common spatiotemporal growth patterns, and site- and species-specific patterns since 1825. A moist summer in the year t - 1 and an early start of the current growing season favored growth of both species. A prolongation of the growing season into fall was the most distinguishing factor between the species. A long and gradual climatic gradient shifted to a short gradient with a clear segregation between the southern and northern parts of the transect. This shift, around 1875, was abrupt and characterized by a turbulent climatic period. The observed pattern was likely related to a large-scale shift in the mean position of the Arctic Front that occurred at the end of the 1800s. No discrete climatic setting explained the present switch from mixedwoods to conifers at 49°N. Awareness of such nonequilibrial relations between climate and species distribution is essential when assessing vegetation responses to future climate change. |
format |
Article in Journal/Newspaper |
author |
Hofgaard, Annika Tardif, Jacques Bergeron, Yves |
spellingShingle |
Hofgaard, Annika Tardif, Jacques Bergeron, Yves Dendroclimatic response of Picea mariana and Pinus banksiana along a latitudinal gradient in the eastern Canadian boreal forest |
author_facet |
Hofgaard, Annika Tardif, Jacques Bergeron, Yves |
author_sort |
Hofgaard, Annika |
title |
Dendroclimatic response of Picea mariana and Pinus banksiana along a latitudinal gradient in the eastern Canadian boreal forest |
title_short |
Dendroclimatic response of Picea mariana and Pinus banksiana along a latitudinal gradient in the eastern Canadian boreal forest |
title_full |
Dendroclimatic response of Picea mariana and Pinus banksiana along a latitudinal gradient in the eastern Canadian boreal forest |
title_fullStr |
Dendroclimatic response of Picea mariana and Pinus banksiana along a latitudinal gradient in the eastern Canadian boreal forest |
title_full_unstemmed |
Dendroclimatic response of Picea mariana and Pinus banksiana along a latitudinal gradient in the eastern Canadian boreal forest |
title_sort |
dendroclimatic response of picea mariana and pinus banksiana along a latitudinal gradient in the eastern canadian boreal forest |
publisher |
Canadian Science Publishing |
publishDate |
1999 |
url |
http://dx.doi.org/10.1139/x99-073 http://www.nrcresearchpress.com/doi/pdf/10.1139/x99-073 |
genre |
Climate change |
genre_facet |
Climate change |
op_source |
Canadian Journal of Forest Research volume 29, issue 9, page 1333-1346 ISSN 0045-5067 1208-6037 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/x99-073 |
container_title |
Canadian Journal of Forest Research |
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29 |
container_issue |
9 |
container_start_page |
1333 |
op_container_end_page |
1346 |
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1810439746565963776 |