fire history of appalachian forests of the lower st-lawrence region (southern quebec)

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ID: 208024
2017
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Abstract
Sugar maple (Acer saccharum) forests are among the main forest types of eastern North America. Sugar maple stands growing on Appalachian soils of the Lower St-Lawrence region are located at the northeastern limit of the northern hardwood forest zone. Given the biogeographical position of these forests at the edge of the boreal biome, we aimed to reconstruct the fire history and document the occurrence of temperate and boreal trees in sugar maple sites during the Holocene based on soil macrocharcoal analysis. Despite having experienced a different number of fire events, the fire history of the maple sites was broadly similar, with two main periods of fire activity, i.e., early- to mid-Holocene and late-Holocene. A long fire-free interval of at least 3500 years separated the two periods from the mid-Holocene to 2000 years ago. The maple sites differ with respect to fire frequency and synchronicity of the last millennia. According to the botanical composition of charcoal, forest vegetation remained relatively homogenous during the Holocene, except recently. Conifer and broadleaf species coexisted in mixed forests during the Holocene, in phase with fire events promoting the regeneration of boreal and temperate tree assemblages including balsam fir (Abies balsamea) and sugar maple.
Reference Key
payette2017forestsfire Use this key to autocite in the manuscript while using SciMatic Manuscript Manager or Thesis Manager
Authors ;Serge Payette;Vanessa Pilon;Pierre-Luc Couillard;Jason Laflamme
Journal tecnologia del agua
Year 2017
DOI
10.3390/f8040120
URL
http://www.mdpi.com/1999-4907/8/4/120
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