The climate, the fuel and the land use: Long-term regional variability of biomass burning in boreal forests
The influence of different drivers on changes in North American and European boreal forests biomass burning (BB) during the Holocene was investigated based on the following hypotheses: land use was important only in the southernmost regions, while elsewhere climate was the main driver modulated by c...
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Online Access: | https://hdl.handle.net/11567/1117281 https://doi.org/10.1111/gcb.14380 |
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ftunivgenova:oai:iris.unige.it:11567/1117281 2024-04-14T08:11:25+00:00 The climate, the fuel and the land use: Long-term regional variability of biomass burning in boreal forests Molinari, Chiara Lehsten, Veiko Blarquez, Olivier Carcaillet, Christopher Davis, Basil A S Kaplan, Jed O Clear, Jennifer Bradshaw, Richard H W Molinari, Chiara Lehsten, Veiko Blarquez, Olivier Carcaillet, Christopher Davis, Basil A S Kaplan, Jed O Clear, Jennifer Bradshaw, Richard H W 2018 ELETTRONICO https://hdl.handle.net/11567/1117281 https://doi.org/10.1111/gcb.14380 eng eng WILEY place:111 RIVER ST, HOBOKEN 07030-5774, NJ USA info:eu-repo/semantics/altIdentifier/pmid/29959810 info:eu-repo/semantics/altIdentifier/wos/WOS:000445728800036 volume:24 firstpage:4929 lastpage:4945 numberofpages:17 journal:GLOBAL CHANGE BIOLOGY https://hdl.handle.net/11567/1117281 doi:10.1111/gcb.14380 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85050938958 Holocene biomass burning boreal biome climate variation land use plant functional types info:eu-repo/semantics/article 2018 ftunivgenova https://doi.org/10.1111/gcb.14380 2024-03-21T02:18:39Z The influence of different drivers on changes in North American and European boreal forests biomass burning (BB) during the Holocene was investigated based on the following hypotheses: land use was important only in the southernmost regions, while elsewhere climate was the main driver modulated by changes in fuel type. BB was reconstructed by means of 88 sedimentary charcoal records divided into six different site clusters. A statistical approach was used to explore the relative contribution of (a) pollen-based mean July/summer temperature and mean annual precipitation reconstructions, (b) an independent model-based scenario of past land use (LU), and (c) pollen-based reconstructions of plant functional types (PFTs) on BB. Our hypotheses were tested with: (a) a west-east northern boreal sector with changing climatic conditions and a homogeneous vegetation, and (b) a north-south European boreal sector characterized by gradual variation in both climate and vegetation composition. The processes driving BB in boreal forests varied from one region to another during the Holocene. However, general trends in boreal biomass burning were primarily controlled by changes in climate (mean annual precipitation in Alaska, northern Quebec, and northern Fennoscandia, and mean July/summer temperature in central Canada and central Fennoscandia) and, secondarily, by fuel composition (BB positively correlated with the presence of boreal needleleaf evergreen trees in Alaska and in central and southern Fennoscandia). Land use played only a marginal role. A modification towards less flammable tree species (by promoting deciduous stands over fire-prone conifers) could contribute to reduce circumboreal wildfire risk in future warmer periods. Article in Journal/Newspaper Fennoscandia Alaska Università degli Studi di Genova: CINECA IRIS Canada Global Change Biology 24 10 4929 4945 |
institution |
Open Polar |
collection |
Università degli Studi di Genova: CINECA IRIS |
op_collection_id |
ftunivgenova |
language |
English |
topic |
Holocene biomass burning boreal biome climate variation land use plant functional types |
spellingShingle |
Holocene biomass burning boreal biome climate variation land use plant functional types Molinari, Chiara Lehsten, Veiko Blarquez, Olivier Carcaillet, Christopher Davis, Basil A S Kaplan, Jed O Clear, Jennifer Bradshaw, Richard H W The climate, the fuel and the land use: Long-term regional variability of biomass burning in boreal forests |
topic_facet |
Holocene biomass burning boreal biome climate variation land use plant functional types |
description |
The influence of different drivers on changes in North American and European boreal forests biomass burning (BB) during the Holocene was investigated based on the following hypotheses: land use was important only in the southernmost regions, while elsewhere climate was the main driver modulated by changes in fuel type. BB was reconstructed by means of 88 sedimentary charcoal records divided into six different site clusters. A statistical approach was used to explore the relative contribution of (a) pollen-based mean July/summer temperature and mean annual precipitation reconstructions, (b) an independent model-based scenario of past land use (LU), and (c) pollen-based reconstructions of plant functional types (PFTs) on BB. Our hypotheses were tested with: (a) a west-east northern boreal sector with changing climatic conditions and a homogeneous vegetation, and (b) a north-south European boreal sector characterized by gradual variation in both climate and vegetation composition. The processes driving BB in boreal forests varied from one region to another during the Holocene. However, general trends in boreal biomass burning were primarily controlled by changes in climate (mean annual precipitation in Alaska, northern Quebec, and northern Fennoscandia, and mean July/summer temperature in central Canada and central Fennoscandia) and, secondarily, by fuel composition (BB positively correlated with the presence of boreal needleleaf evergreen trees in Alaska and in central and southern Fennoscandia). Land use played only a marginal role. A modification towards less flammable tree species (by promoting deciduous stands over fire-prone conifers) could contribute to reduce circumboreal wildfire risk in future warmer periods. |
author2 |
Molinari, Chiara Lehsten, Veiko Blarquez, Olivier Carcaillet, Christopher Davis, Basil A S Kaplan, Jed O Clear, Jennifer Bradshaw, Richard H W |
format |
Article in Journal/Newspaper |
author |
Molinari, Chiara Lehsten, Veiko Blarquez, Olivier Carcaillet, Christopher Davis, Basil A S Kaplan, Jed O Clear, Jennifer Bradshaw, Richard H W |
author_facet |
Molinari, Chiara Lehsten, Veiko Blarquez, Olivier Carcaillet, Christopher Davis, Basil A S Kaplan, Jed O Clear, Jennifer Bradshaw, Richard H W |
author_sort |
Molinari, Chiara |
title |
The climate, the fuel and the land use: Long-term regional variability of biomass burning in boreal forests |
title_short |
The climate, the fuel and the land use: Long-term regional variability of biomass burning in boreal forests |
title_full |
The climate, the fuel and the land use: Long-term regional variability of biomass burning in boreal forests |
title_fullStr |
The climate, the fuel and the land use: Long-term regional variability of biomass burning in boreal forests |
title_full_unstemmed |
The climate, the fuel and the land use: Long-term regional variability of biomass burning in boreal forests |
title_sort |
climate, the fuel and the land use: long-term regional variability of biomass burning in boreal forests |
publisher |
WILEY |
publishDate |
2018 |
url |
https://hdl.handle.net/11567/1117281 https://doi.org/10.1111/gcb.14380 |
geographic |
Canada |
geographic_facet |
Canada |
genre |
Fennoscandia Alaska |
genre_facet |
Fennoscandia Alaska |
op_relation |
info:eu-repo/semantics/altIdentifier/pmid/29959810 info:eu-repo/semantics/altIdentifier/wos/WOS:000445728800036 volume:24 firstpage:4929 lastpage:4945 numberofpages:17 journal:GLOBAL CHANGE BIOLOGY https://hdl.handle.net/11567/1117281 doi:10.1111/gcb.14380 info:eu-repo/semantics/altIdentifier/scopus/2-s2.0-85050938958 |
op_doi |
https://doi.org/10.1111/gcb.14380 |
container_title |
Global Change Biology |
container_volume |
24 |
container_issue |
10 |
container_start_page |
4929 |
op_container_end_page |
4945 |
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1796309117473652736 |