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Resilience of Boreal Forest Systems: Post-fire Recovery of Carbon in the Northwest Territories, Canada

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dc.contributor.advisor Turetsky, Merritt Bill, Kristen 2020-01-03T20:33:57Z 2020-01-03T20:33:57Z 2020-01-02 2019-12-05 2020-01-03
dc.description.abstract Recent shifts in wildfire activity in regions of boreal North America indicate decreased resiliency of carbon pools and forest state. Here, I quantify the initial response and long-term recovery of belowground carbon pools to wildfire across various vegetation trajectories in ~140,000km2 area of the Northwest Territories, Canada, across 502 stands ranging from 1-100 years post-fire. Recovery of soil organic carbon depth and stocks post-fire are regulated primarily by time, moisture level, and their interaction. Hydric sites store more carbon than mesic and dry sites, and rates of post-fire soil carbon accumulation are slower in wetter stands than in mesic or dry stands. My results also suggest that shifts in vegetation state are likely to reduce soil organic carbon depth and stocks during the fire-free period. By modelling across gradients of fire history, hydrology, and vegetation dominance, we can predict the short- and long-term consequences of wildfire for ecosystem carbon behaviour. en_US
dc.description.sponsorship This research was funded by Northern Science Training Program (NSTP), Northern Water Futures, NASA, and was in kind partnership with the Government of the Northwest Territories. en_US
dc.language.iso en en_US
dc.rights Attribution-NonCommercial-NoDerivatives 4.0 International *
dc.rights.uri *
dc.subject Soil organic Carbon en_US
dc.subject Ecosystem Resilience en_US
dc.subject Boreal Forest en_US
dc.subject Fire en_US
dc.title Resilience of Boreal Forest Systems: Post-fire Recovery of Carbon in the Northwest Territories, Canada en_US
dc.type Thesis en_US Integrative Biology en_US Master of Science en_US Department of Integrative Biology en_US
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Attribution-NonCommercial-NoDerivatives 4.0 International Except where otherwise noted, this item's license is described as Attribution-NonCommercial-NoDerivatives 4.0 International