Abstract:Many high-altitude summits across the boreal forest zone of Quebec are colonized by tundra vegetation. In this study, the origin and plant composition of these remote, isolated tundra summits have been documented to link their nature and floristic diversity to several potential causal factors. Analysis of spruce macrocharcoal pieces distributed at the soil surface indicates that wildfire is the chief factor behind the creation of the tundra summits across the boreal forest zone. All of the summits were defores… Show more
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