Comparative Analysis of the Climatic Response of Seven Boreal Tree Species from Northwestern Québec, Canada
AffiliationCentre for Forest Inderdisciplinary Research, University of Winnipeg, Winnpeg (Manitoba), Canada
Groupe de recherche en écologie forestière interuniversitaire, Université du Québec à Montréal, Montréal (Québec) Canada
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CitationTardif, J., Conciatori, F., Bergeron, Y. 2001. Comparative analysis of the climatic response of seven boreal tree species from northwestern Québec, Canada. Tree-Ring Research 57(2):169-181.
AbstractWe analyzed the radial growth response of seven boreal tree species growing on an island of Lake Duparquet, northwestern Québec. The species investigated were Betula papyrifera, Abies balsamea, Thuja occidentalis, Picea glauca, Picea mariana, Pinus banksiana and Pinus resinosa. Seven species chronologies were developed as well as seventy individual tree chronologies. Coniferous species were positively correlated to warm April and to cool-wet July. This indicates that early spring and positive water balance during the growth season favor radial growth. In contrast, the radial growth of B. papyrifera was mainly correlated to June precipitation. The response of individual trees to climate was variable but the differences between B. papyrifera and the coniferous species were maintained. No microsite factors or tree characteristics were associated with this variability. Except for B. papyrifera, it is speculated that climate change could have a similar qualitative physiological consequence on the growth of coniferous species found on homogeneous insular landscapes.