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

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Abstract

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).

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ACKNOWLEDGMENTS

This study was supported by RFBR, grant 18-05-60004; studies of the landscape structure of typical tundra were supported by RFBR, grant 18-55-11005.

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Authors and Affiliations

  1. Institute of the Earth Cryosphere, Siberian Branch, Russian Academy of Sciences, 625000, Tyumen, Russia

    A. A. Vasiliev,  V. P. Melnikov & G. E. Oblogov

  2. Tyumen State University, 625003, Tyumen, Russia

    A. A. Vasiliev,  V. P. Melnikov & G. E. Oblogov

  3. All-Russia Scientific Research Institute for Geology and Mineral Resources of the Ocean, 190121, St. Petersburg, Russia

    P. B. Semenov

  4. Moscow State University, 119991, Moscow, Russia

    I. D. Streletskaya

Authors
  1. A. A. Vasiliev
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  2. V. P. Melnikov
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  3. P. B. Semenov
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  4. G. E. Oblogov
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  5. I. D. Streletskaya
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Corresponding authors

Correspondence to A. A. Vasiliev or G. E. Oblogov.

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Vasiliev, A.A., Melnikov, V.P., Semenov, P.B. et al. Methane Concentration and Emission in Dominant Landscapes of Typical Tundra of Western Yamal. Dokl. Earth Sc. 485, 284–287 (2019). https://doi.org/10.1134/S1028334X19030085

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  • DOI: https://doi.org/10.1134/S1028334X19030085

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