Peatlands, naturally carbon-rich ecosystems, can undergo land use change to harvest peat for anthropogenic use (i.e., horticulture, fuel). This transformation alters the biogeochemical dynamics of these ecosystems, transitioning them from net carbon sinks to carbon sources. Our study focuses on assessing the impacts of management practices related to peat extraction on greenhouse gas (GHG) emissions. We quantify emissions from peat stockpiles stored in the field, and explore differences between uncovered stockpiles, and stockpiles covered with an impermeable reflective tarp. Fieldwork was conducted at two actively extracted peatland sites employing different management strategies in Riviere-du-Loup, Quebec, from May to November 2022. Using a closed chamber and trace gas analyzer, we collected data on carbon dioxide (CO2) and methane (CH4) fluxes from both covered and uncovered stockpiles. Gas samples were collected at various depths within the stockpiles and analyzed using Gas Chromatography to compare gas storage estimates. Our findings reveal that uncovered stockpiles exhibit low CH4 emissions but release an average of 5 g CO2-C/m2/day, which is significantly higher than average CO2 emissions from extracted peat fields. Conversely, covered stockpiles demonstrate substantially lower CO2 emissions, with emissions through the tarp being ten times lower than uncovered stockpiles. However, covered stockpiles store much higher concentrations of both CH4 (>1,000 ppm) and CO2 (>100,000 ppm) compared to uncovered stockpiles. We consider the drivers behind these emission trends. Our research outcomes contribute to enhancing our understanding of land-use-related GHG emissions in Canada, improving GHG accounting and guiding the peat industry towards best practices.