Effects of permafrost degradation on biogeochemical cycles in subarctic pothole bogs

Julien Arsenault, POSTDOCTORAL RESEARCHER Axis 1: Quantifying carbon inputs, transfers, transformations, and storage along the terrestrial-coastal-atmospheric continuum Axis 2: Coupling biogeochemical cycles in a context of global change

Home laboratory: Department of Applied Geomatics, University of Sherbrooke, Canada

Host laboratory: Centre for Research on Biodiversity and Environment (CRBE), CNRS, France
 

Duration: 6 weeks, Oct. 21–Nov. 29, 2024

Permafrost bogs in subarctic regions store large quantities of carbon, nitrogen, and phosphorus. However, these ecosystems are experiencing major upheavals because of climate change. Our research seeks to characterise the effects of permafrost degradation on carbon, nitrogen, and phosphorus biogeochemistry in the subarctic pothole bogs of the Hudson Bay Lowlands (Manitoba, Canada). A sampling campaign will take place from August 5 to 25, 2024, but most of the laboratory work will be performed in Toulouse, France, where several collaborators work. The mobility grant will fund a visit to CRBE facilities in the fall of 2024 to allow completion of the laboratory analyses and the development of the scientific articles with collaborators, both tasks that will help advance our research objectives.