Vertical CH4 and CO2 fluxes in plant communities of mesooligotrophic peatland of middle taiga

The paper presents the results of vertical CH 4 and CO 2 fluxes measurements in plant communities of mesooligotrophic peatland of middle taiga during the vegetation period. The quantitative assessment of methane and carbon dioxide exchange in three peatland phytocoenoses is given. Methane emissions in sites with near-surface groundwater table were significantly higher than on hummocks. During the season the maximum methane emission to the atmosphere was observed in July. The positive CO 2 net ecosystem exchange was identified in mesotrophic and mesoeutrophic plant communities. Carbon dioxide emission prevailed on hummocks at the oligotrophic site of the peatland.