Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers
Climate, vegetation and humans act on biomass burning at different spatial and temporal scales. In this study, we used a dense network of sedimentary charcoal records from eastern Canada to reconstruct regional biomass burning history over the last 7000 years at the scale of four potential vegetatio...
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ftunivquebecat:oai:depositum.uqat.ca:1151 2023-05-15T18:40:14+02:00 Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers Blarquez, Olivier Ali, Adam A. Girardin, Martin P. Grondin, Pierre Fréchette, Bianca Bergeron, Yves Hély, Christelle 2015-09-02 application/pdf https://depositum.uqat.ca/id/eprint/1151/ https://depositum.uqat.ca/id/eprint/1151/1/blarquezetal_sc_sept2015.pdf https://doi.org/10.1038/srep13356 en eng https://depositum.uqat.ca/id/eprint/1151/1/blarquezetal_sc_sept2015.pdf Blarquez, Olivier, Ali, Adam A., Girardin, Martin P., Grondin, Pierre, Fréchette, Bianca, Bergeron, Yves et Hély, Christelle (2015). Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers. Scientific Reports , 5 (1). doi:10.1038/srep13356 <https://doi.org/10.1038/srep13356> Repéré dans Depositum à https://depositum.uqat.ca/id/eprint/1151 doi:10.1038/srep13356 charcoal records biomass human activities climate change wildfires paleofire biomass burning history Article Évalué par les pairs 2015 ftunivquebecat https://doi.org/10.1038/srep13356 2022-07-11T11:40:39Z Climate, vegetation and humans act on biomass burning at different spatial and temporal scales. In this study, we used a dense network of sedimentary charcoal records from eastern Canada to reconstruct regional biomass burning history over the last 7000 years at the scale of four potential vegetation types: open coniferous forest/tundra, boreal coniferous forest, boreal mixedwood forest and temperate forest. The biomass burning trajectories were compared with regional climate trends reconstructed from general circulation models, tree biomass reconstructed from pollen series, and human population densities. We found that non-uniform climate, vegetation and human drivers acted on regional biomass burning history. In the open coniferous forest/tundra and dense coniferous forest, the regional biomass burning was primarily shaped by gradual establishment of less climate-conducive burning conditions over 5000 years. In the mixed boreal forest an increasing relative proportion of flammable conifers in landscapes since 2000 BP contributed to maintaining biomass burning constant despite climatic conditions less favourable to fires. In the temperate forest, biomass burning was uncoupled with climatic conditions and the main driver was seemingly vegetation until European colonization, i.e. 300 BP. Tree biomass and thus fuel accumulation modulated fire activity, an indication that biomass burning is fuel-dependent and notably upon long-term co-dominance shifts between conifers and broadleaf trees. Article in Journal/Newspaper Tundra Université du Québec en Abitibi-Témiscamingue (UQAT): Depositum Canada Scientific Reports 5 1 |
institution |
Open Polar |
collection |
Université du Québec en Abitibi-Témiscamingue (UQAT): Depositum |
op_collection_id |
ftunivquebecat |
language |
English |
topic |
charcoal records biomass human activities climate change wildfires paleofire biomass burning history |
spellingShingle |
charcoal records biomass human activities climate change wildfires paleofire biomass burning history Blarquez, Olivier Ali, Adam A. Girardin, Martin P. Grondin, Pierre Fréchette, Bianca Bergeron, Yves Hély, Christelle Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers |
topic_facet |
charcoal records biomass human activities climate change wildfires paleofire biomass burning history |
description |
Climate, vegetation and humans act on biomass burning at different spatial and temporal scales. In this study, we used a dense network of sedimentary charcoal records from eastern Canada to reconstruct regional biomass burning history over the last 7000 years at the scale of four potential vegetation types: open coniferous forest/tundra, boreal coniferous forest, boreal mixedwood forest and temperate forest. The biomass burning trajectories were compared with regional climate trends reconstructed from general circulation models, tree biomass reconstructed from pollen series, and human population densities. We found that non-uniform climate, vegetation and human drivers acted on regional biomass burning history. In the open coniferous forest/tundra and dense coniferous forest, the regional biomass burning was primarily shaped by gradual establishment of less climate-conducive burning conditions over 5000 years. In the mixed boreal forest an increasing relative proportion of flammable conifers in landscapes since 2000 BP contributed to maintaining biomass burning constant despite climatic conditions less favourable to fires. In the temperate forest, biomass burning was uncoupled with climatic conditions and the main driver was seemingly vegetation until European colonization, i.e. 300 BP. Tree biomass and thus fuel accumulation modulated fire activity, an indication that biomass burning is fuel-dependent and notably upon long-term co-dominance shifts between conifers and broadleaf trees. |
format |
Article in Journal/Newspaper |
author |
Blarquez, Olivier Ali, Adam A. Girardin, Martin P. Grondin, Pierre Fréchette, Bianca Bergeron, Yves Hély, Christelle |
author_facet |
Blarquez, Olivier Ali, Adam A. Girardin, Martin P. Grondin, Pierre Fréchette, Bianca Bergeron, Yves Hély, Christelle |
author_sort |
Blarquez, Olivier |
title |
Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers |
title_short |
Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers |
title_full |
Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers |
title_fullStr |
Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers |
title_full_unstemmed |
Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers |
title_sort |
regional paleofire regimes affected by non-uniform climate, vegetation and human drivers |
publishDate |
2015 |
url |
https://depositum.uqat.ca/id/eprint/1151/ https://depositum.uqat.ca/id/eprint/1151/1/blarquezetal_sc_sept2015.pdf https://doi.org/10.1038/srep13356 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Tundra |
genre_facet |
Tundra |
op_relation |
https://depositum.uqat.ca/id/eprint/1151/1/blarquezetal_sc_sept2015.pdf Blarquez, Olivier, Ali, Adam A., Girardin, Martin P., Grondin, Pierre, Fréchette, Bianca, Bergeron, Yves et Hély, Christelle (2015). Regional paleofire regimes affected by non-uniform climate, vegetation and human drivers. Scientific Reports , 5 (1). doi:10.1038/srep13356 <https://doi.org/10.1038/srep13356> Repéré dans Depositum à https://depositum.uqat.ca/id/eprint/1151 doi:10.1038/srep13356 |
op_doi |
https://doi.org/10.1038/srep13356 |
container_title |
Scientific Reports |
container_volume |
5 |
container_issue |
1 |
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1766229505552154624 |