Methane Concentration and Emission in Dominant Landscapes of Typical Tundra of Western Yamal


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Methane concentration in dominant landscapes of typical tundra of Western Yamal has been measured. The highest methane content in the active layer was measured in tundra bogs, wet gully bottoms, and polygonal tundra. Within these landscapes, methane concentration reaches 5000 ppm, while in other landscapes it does not exceed 300 ppm. Thus, only bogs, polygonal tundra, and gully bottoms, which occupy approximately 30–40% of the area, are the main sources of methane emission in the typical tundra zone. Measurements of methane emission to the atmosphere have been performed. During the summer maximum of emission, daily methane flux in bogs reaches 14.4 mg/m2 (20.3 ml/m2).

作者简介

A. Vasiliev

Institute of the Earth Cryosphere, Siberian Branch,
Russian Academy of Sciences; Tyumen State University

编辑信件的主要联系方式.
Email: al.a.vasiliev@gmail.com
俄罗斯联邦, Tyumen, 625000; Tyumen, 625003

V. Melnikov

Institute of the Earth Cryosphere, Siberian Branch,
Russian Academy of Sciences; Tyumen State University

Email: oblogov@mail.ru
俄罗斯联邦, Tyumen, 625000; Tyumen, 625003

P. Semenov

All-Russia Scientific Research Institute for Geology
and Mineral Resources of the Ocean

Email: oblogov@mail.ru
俄罗斯联邦, St. Petersburg, 190121

G. Oblogov

Institute of the Earth Cryosphere, Siberian Branch,
Russian Academy of Sciences; Tyumen State University

编辑信件的主要联系方式.
Email: oblogov@mail.ru
俄罗斯联邦, Tyumen, 625000; Tyumen, 625003

I. Streletskaya

Moscow State University

Email: oblogov@mail.ru
俄罗斯联邦, Moscow, 119991

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