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METHANE EMISSION FROM TYPICAL PEATLAND LANDSCAPES OF WESTERN SIBERIA FOREST-STEPPE: FOR «STANDARD MODEL»BC5 // Tomsk State Pedagogical University Bulletin. 2009. Issue 11 (89). P. 198-206

Were measured spec1f1c methane fluxes that are representative for some peatland landscapes of Western S1beria forest-steppe. Spec1fic methane fluxes of forest-steppe eutroph1c m1res are very close to the same fluxes 1n subta1ga. Probability d1stribution of specific methane flux has following parameters: 1st quart1le/med1an/3rd quartile = 0.53/1.99/ 6.03 mgС GH4-m 2-h 1. Methane fluxes from bog lakes are close too, as in subta1ga they are estimated at tens and first hundreds of mgС GH4-m 2-h 1. Probability d1stribution of specific methane flux in riam: 0.00 / 0.09 / 0.21 mgС GH4-m 2-h 1. Annual methane em1ss1on from Western S1ber1a forest-steppe (estimated on the model Bc5) 1s 0.36 MtСH4/year that form 5 % reg1onal em1ss1on.

Keywords: methane emission, peatlands, Western Siberia, forest-steppe

METHANE EMISSION FROM WEST SIBERIAN TUNDRA MIRES // Tomsk State Pedagogical University Bulletin. 2010. Issue 3 (93). P. 78-86

The paper presents experimental data on the methane fluxes from West Siberian tundra mires in summer and winter periods. The possibility of the methane adsorption by the snow cover is discussed. The regional flux from the whole region is estimated with the «standard model» Bc7 as 0.16 MtСH4/year that accounts for around 5 % of the total West Siberian mires methane emission.

Keywords: methane emission, snow cover adsorption, regional flux, tundra, West Siberia