Search

Methane emission from middle taiga oligotrophic hollows of Western Siberia // Tomsk State Pedagogical University Bulletin. 2011. Issue 5 (107). P. 135-143

The paper presents experimental data on the methane emissions from West Siberian middle taiga oligotrophic hollows. Studied fluxes vary considerably from –0.08 to 58 mgС·m–2·h–1 (median is 2.76 mgС·m–2·h–1). Received data are consolidated in the scope of «standard model» Bc8 conception of methane emission. The model contains medians of CH4 flux distributions on seven different microlandscape types depending on their area and duration of methane emission in the respective zones. The total flux from the middle taiga oligotrophic hollows is 0.37 TgC or approximately 70 % of CH4 total flux from middle taiga mires. Version Bc8 of this model estimates the value of yearly CH4 emission from mires of whole Western Siberia as 2.93 TgC·yr–1 that accounts for around 2.4 % of the total mire methane emission.

Keywords: methane emission, mires, oligotrophic hollows, middle taiga, West Siberia