Role of Mixed-Species Stands in Attenuating the Vulnerability of Boreal Forests to Climate Change and Insect Epidemics.

These beneficial effects were reduced following the SBW epidemic and dry conditions during the 1970s, resulting in a negative mean BAI long-term linear trend for spruce in mixed stands ( Figures 4 , 5B ) and in a positive trend for aspen in the same stands ( Figure 5H ), although aspen showed a growth decline after the mid-1980s ( Figure 4 ; Supplementary Figure 4 ).

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