| Summary: | The study of CO2 and CH4 gas emission was carried out in two contrast bioclimatic sub-zones in the north provinces of Western Siberia. Three year measurements have shown the averaged summer fluxes to be equaled 81,6 ± 70,1 mg CH4 m~^ d~' (n = 190) and 7,56 ± 4,23 g CO2 m~^ d^^ (n = 156) for middle taiga mires. The north peatland fluxes were substantively lower and ranged from 6,1 (in lake) up to 41,0 (oligotrophic hollow) mg CH4 m~^ d^' and 1,5 g CO2 m~^ d^' (lake) to 5,4 g CO2 m~^ d^^ (paisa surface) during July-August 2005. Influence of peat temperature and water table level (WTL) were also searched on the methane and carbon dioxide fluxes. It was found statistically true regressive exponential relationship between CH4 flux and WTL for middle taiga mire. The low temperature and permafrost impact were discussed.
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