Xanthe Walker – The Conversation

A helicopter drops water on a forest fire in Alaska. Michael Risinger/U.S. Army National Guard

April 17, 2021

As extreme fires transform Alaska’s boreal forest, deciduous trees put a brake on carbon loss and how fast the forest burns

Jill Johnstone, University of Saskatchewan; Heather Dawn Alexander, Auburn University; Michelle C. Mack, Northern Arizona University, and Xanthe Walker, Northern Arizona University

A new study finds more deciduous trees like aspen are growing in after severe fires in the region, and that has some unexpected impacts.

A wildfire moves towards the town of Anzac from Fort McMurray, Alta. in May 2016. Jason Franson/The Canadian Press via AP

August 29, 2019

More frequent fires could dramatically alter boreal forests and emit more carbon

Jill Johnstone, University of Saskatchewan; Carissa Brown, Memorial University of Newfoundland, and Xanthe Walker, Northern Arizona University

The boreal forest is being reshaped by wildfire. As climate change intensifies wildfire activity, the boreal forest will likely become a carbon source.

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