Vol. 32, issue 06, article # 11

Abstract:

The measurements of methane fluxes (CH₄) obtained by the automatic chamber method in the characteristic plant associations on the Plotnikovo section of the Bakchar bog (the Great Vasyugan Mires) in June 2018 are presented. Air sampling was carried out in wet phytocenoses on the hollow-ridge landscape. The period under consideration was characterized by anomalous weather conditions compared with the same periods of previous years: extreme precipitations and high air temperatures. On the basis of the research, the daily dynamics of CH₄ emission was revealed. The correlation analysis made it possible to describe the dependences of CH₄ fluxes on the hydrometeorological conditions of the surface and upper layers of the bog soil. The high flood of bog waters inhibits the methanogenesis during the period of observation.

Keywords:

wetland ecosystems, terrain-atmosphere gases exchange, volatile organic compounds (VOCs), methane, emission flows

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