{"id":82469,"date":"2020-10-07T11:25:27","date_gmt":"2020-10-07T15:25:27","guid":{"rendered":"https:\/\/mrnf.gouv.qc.ca\/nos-publications\/long-term-steady-state-dry-boreal-forest-facedisturbance\/"},"modified":"2020-10-07T11:25:27","modified_gmt":"2020-10-07T15:25:27","slug":"long-term-steady-state-dry-boreal-forest-facedisturbance","status":"publish","type":"cpt_publication","link":"https:\/\/mrnf.gouv.qc.ca\/en\/our-publications\/long-term-steady-state-dry-boreal-forest-facedisturbance\/","title":{"rendered":"Long-term steady-state dry boreal forest in the face of disturbance"},"content":{"rendered":"\n<p>Published in<strong> Ecosystems 23:1075\u20131092. https:\/\/doi.org\/10.1007\/s10021-019-00455-w<\/strong><\/p>\n<p>We used bioproxies from paleosoils buried within two aeolian dunes to test hypotheses concerning the origin of dry sandy boreal forests in Canada. These forests are dominated today by Pinus banksiana Lamb. One hypothesis is that too frequent Holocene stand-replacing fires would have transformed the original vegetation through extirpation of susceptible species to fire in water stress habitat. Alternatively, the ecosystem would have not changed since the dunes stabilized enough to support forest establishment. The vegetation composition and richness were determined by identification of charcoal and macroremains and radiocarbon dating for the chronology. Both sites revealed a similar history covering 6400\u00a0years. Half of the charcoal layers were less than 2500\u00a0years old in both sites, indicating that they had been subjected to the same fire history. Data indicated a stable plant composition and richness, although the percentage of Pinus decreased slightly over 4000\u00a0years (decreasing rate 1% per century). The fungus <em>Cenococcum geophilum<\/em> was consistently present, with a stochastic abundance. The vegetation grew under natural fire conditions and soil dryness since 6000\u00a0years. The ecosystem was probably not stressed by late-Holocene fires or climate changes, as the multi-millennial steady state reveals a resistant and resilient ecosystem.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Published in Ecosystems 23:1075\u20131092. https:\/\/doi.org\/10.1007\/s10021-019-00455-w We used bioproxies from paleosoils buried within two aeolian dunes to test hypotheses concerning the origin of dry sandy boreal forests in Canada. These forests are dominated today by Pinus banksiana Lamb. One hypothesis is that too frequent Holocene stand-replacing fires would have transformed the original vegetation through extirpation of [&hellip;]<\/p>\n","protected":false},"template":"","format":"standard","cptt_secteur":[1179],"cptt_theme":[1183,1180,1181],"cptt_categ_publi":[1149],"cptt_auteurs_ministeriels":[1076],"class_list":["post-82469","cpt_publication","type-cpt_publication","status-publish","format-standard","hentry","cptt_secteur-forests","cptt_theme-ecosystems-and-environment","cptt_theme-forestry-research","cptt_theme-forests","cptt_categ_publi-scientific-article","cptt_auteurs_ministeriels-desponts-mireille"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v24.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Long-term steady-state dry boreal forest in the face of disturbance - Minist\u00e8re des Ressources naturelles et des For\u00eats<\/title>\n<meta name=\"description\" content=\"We used bioproxies from paleosoils buried within two aeolian dunes to test hypotheses concerning the origin of dry sandy boreal forests.\" \/>\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\/long-term-steady-state-dry-boreal-forest-facedisturbance\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Long-term steady-state dry boreal forest in the face of disturbance - 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