CANA - Characterisation and quantification of organic matter and nutrients in Arctic permafrost soils

• PRIORITY 1: Carbon source, transfer, transmission and storage along the land-coastal zone-atmosphere continuum;
• AXIS 2: Coupling of biogeochemical cycles in a context of global change;

CANA - Characterisation and quantification of organic matter and nutrients in Arctic permafrost soils

Arctic permafrost regions contain significant quantities of carbon (C), nitrogen (N), phosphorus (P) and other nutrients. With global warming, the thawing of these soils is causing changes in vegetation, hydrology and nutrient flows, with global impacts that are still poorly understood. This mobility aims to study the repercussions of these modifications by analysing the stocks of C, organic matter and nutrients in the different compartments of permafrost soils.

As part of this mobility, I will be working at Laval University to subsample permafrost boreholes and collect the different fractions (solid, pore water, extracts). The samples will be analysed to determine their composition and improve our understanding of biogeochemical cycles at these latitudes.