{"id":82269,"date":"2019-01-30T12:18:13","date_gmt":"2019-01-30T17:18:13","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/fire-history-central-boreal-forest\/"},"modified":"2019-01-30T12:18:13","modified_gmt":"2019-01-30T17:18:13","slug":"fire-history-central-boreal-forest","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/fire-history-central-boreal-forest\/","title":{"rendered":"Fire history of the central boreal forest in eastern North America reveals stability since the mid-Holocene"},"content":{"rendered":"\n<p>Published in <b>The Holocene 25(12): 1912-1922. <a href=\"https:\/\/doi.org\/10.1177\/0959683615591361\" target=\"_blank\" rel=\"noopener noreferrer\">https:\/\/doi.org\/10.1177\/0959683615591361<\/a><\/b><\/p>\n<p>Past and present fire frequencies are key factors to evaluate fire-mediated changes in climate, but this metric is difficult to evaluate realistically in paleoecological and climatic reconstructions. Here, we applied charcoal analysis of forest soils to test from direct evidence the stability and resilience of the eastern North-American boreal forest at the Holocene timescale. Current knowledge indicates that the boreal forest is not so stable and resilient in several parts of its range, particularly at its northern and southern edges where it is converted to tundra and woodland communities, respectively. However, it is not known to what degree the structure and composition of the boreal forest situated at the central core of its range (FCR), far from the climate-sensitive edges, have been modified during the Holocene. To address the long-term status of the boreal forest vis-a-vis the Holocene climate, we have used a large dataset composed of 14C-dated and botanically identified charcoal. Long-term fire frequencies in several sites of the FCR were calculated to assess the stability of the main forest ecosystems. The mean fire interval over the last 5000 years of the two principal ecosystems composed of black spruce\u2013jack pine forests and black spruce\u2013balsam fir forests was ~200 and &gt;300 years, respectively. Fires occurred repetitively during this period without fire gaps longer than 400 years (ecosystem 1) and 600 years (ecosystem 2), an indication that the fire regime of the FCR remained stable since the mid-Holocene. Unchanged forest ecosystems during this period also suggest the maintenance of both fire-prone and less fire-prone tree species in their respective sites and the ability of the boreal biome to maintain its structure and function in a repetitive fire-disturbance regime.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in The Holocene 25(12): 1912-1922. https:\/\/doi.org\/10.1177\/0959683615591361 Past and present fire frequencies are key factors to evaluate fire-mediated changes in climate, but this metric is difficult to evaluate realistically in paleoecological and climatic reconstructions. Here, we applied charcoal analysis of forest soils to test from direct evidence the stability and resilience of the eastern North-American [&hellip;]<\/p>\n","protected":false},"template":"","format":"standard","cptt_secteur":[1179],"cptt_theme":[1185,1180,1181],"cptt_categ_publi":[1149],"cptt_auteurs_ministeriels":[1087],"class_list":["post-82269","cpt_publication","type-cpt_publication","status-publish","format-standard","hentry","cptt_secteur-forests","cptt_theme-forest-ecology","cptt_theme-forestry-research","cptt_theme-forests","cptt_categ_publi-scientific-article","cptt_auteurs_ministeriels-p-grondin"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Fire history of the central boreal forest in eastern North America reveals stability since the mid-Holocene - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"We applied charcoal analysis of forest soils to test eastern North-American boreal forest stability and resilience at the Holocene timescale.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/fire-history-central-boreal-forest\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Fire history of the central boreal forest in eastern North America reveals stability since the mid-Holocene - 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Minist\u00e8re des Ressources naturelles et des For\u00eats","description":"We applied charcoal analysis of forest soils to test eastern North-American boreal forest stability and resilience at the Holocene timescale.","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/fire-history-central-boreal-forest\/","og_locale":"en_US","og_type":"article","og_title":"Fire history of the central boreal forest in eastern North America reveals stability since the mid-Holocene - Minist\u00e8re des Ressources naturelles et des For\u00eats","og_description":"We applied charcoal analysis of forest soils to test eastern North-American boreal forest stability and resilience at the Holocene timescale.","og_url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/fire-history-central-boreal-forest\/","og_site_name":"Minist\u00e8re des Ressources naturelles et des For\u00eats","article_publisher":"https:\/\/www.facebook.com\/RessourcesNaturellesForets\/","og_image":[{"width":1200,"height":630,"url":"\/wp-content\/uploads\/Image-g%c3%a9n%c3%a9rale-hiver_FB.jpg","type":"image\/jpeg"}],"twitter_card":"summary_large_image","twitter_site":"@mrnfqc","twitter_misc":{"Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"WebPage","@id":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/fire-history-central-boreal-forest\/","url":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/fire-history-central-boreal-forest\/","name":"Fire history of the central boreal forest in eastern North America reveals stability since the mid-Holocene - 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