Dendroecology in Canada's Forest-Tundra Transition Zone

Abstract

Black spruce in forest outliers has a slower growth rate, more high frequency variation, and less persistence than at the forest limit. Climate variation accounts for more variance in ring widths at the forest limit than within outliers, which occupy protective sites that mitigate stress. Growth behavior at the forest limit can be interpreted in terms of Arctic Front; positions. A two-century long chronology of tree growth is presented.