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

dc.contributor.advisorTuretsky, Merritt
dc.contributor.authorBill, Kristen
dc.date.accessioned2020-01-03T20:33:57Z
dc.date.available2020-01-03T20:33:57Z
dc.date.copyright2020-01-02
dc.date.created2019-12-05
dc.date.issued2020-01-03
dc.degree.departmentDepartment of Integrative Biologyen_US
dc.degree.grantorUniversity of Guelphen_US
dc.degree.nameMaster of Scienceen_US
dc.degree.programmeIntegrative Biologyen_US
dc.description.abstractRecent 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.sponsorshipNorthern Science Training Program
dc.description.sponsorshipNorthern Water Futures
dc.description.sponsorshipNASA
dc.description.sponsorshipGovernment of the Northwest Territories
dc.identifier.urihttp://hdl.handle.net/10214/17706
dc.language.isoenen_US
dc.publisherUniversity of Guelphen_US
dc.rightsAttribution-NonCommercial-NoDerivatives 4.0 International*
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/4.0/*
dc.subjectSoil organic Carbonen_US
dc.subjectEcosystem Resilienceen_US
dc.subjectBoreal Foresten_US
dc.subjectFireen_US
dc.titleResilience of Boreal Forest Systems: Post-fire Recovery of Carbon in the Northwest Territories, Canadaen_US
dc.typeThesisen_US

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