Climate change affecting composition of Yukon forests, study finds


Deciduous trees are expanding in several areas of Yukon because of effects linked to climate change, according to new research.

Kirsten Reid, the lead author of a study published in Environmental Reviews, told CBC News that drought, wildfire and permafrost thaw are changing the makeup of forests. She said coniferous trees, which dominate Yukon forests, seem to be fighting a losing battle against deciduous trees, such as aspen.

That’s what appears to be happening in the Yukon’s Kluane region, where aspens – even grasslands – are encroaching on white spruce forests. The study states ideal growing conditions for this type of tree are likely to become “increasingly rare.”

“Through to 2090,” the study states, “projections across Yukon include shifts

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