We explored how nutrient enrichment (N and P) affects carbon gas (CO₂ and CH₄) productions from subarctic bog and fen soils. Adding N increased CO₂ from bog, P did so for fen, but combined N and P reduced CO₂ but enhanced CH₄ in both. Soil microbes may have adapted to the natural differences in bog and fen conditions and complicated the changes in carbon gas productions. These insights can guide future research on the impacts of changing nutrient status in cold region soils and carbon emissions.

Agriculture may have a significant role on the climate change mitigation. For that reason, it is necessary to have good estimation of the greenhouse gases (GHG) emissions from the agricultural activities. In this work, two different chamber systems to determine GHG were compared. Our results highlighted that automated chamber systems, compared to manual chamber systems, are a powerful tool for quantifying GHG fluxes, allowing to capture the large temporal variability that characterizes them.