Next Article in Journal
Foraminifer and Ostracod Occurrence in a Cool-Water Carbonate Factory of the Cape Adare (Ross Sea, Antarctica): A Key Lecture for the Climatic and Oceanographic Variations in the Last 30,000 Years
Next Article in Special Issue
Seismogenic-Triggering Mechanism of Gas Emission Activizations on the Arctic Shelf and Associated Phases of Abrupt Warming
Previous Article in Journal / Special Issue
Sonar Estimation of Methane Bubble Flux from Thawing Subsea Permafrost: A Case Study from the Laptev Sea Shelf
Open AccessFeature PaperArticle

Methane Content and Emission in the Permafrost Landscapes of Western Yamal, Russian Arctic

1
Institute of the Earth’s Cryosphere of Tyumen Scientific Center of Siberian Branch of Russian Academy of Sciences, 625000 Tyumen, Russia
2
International Centre of Cryology and Cryosophy, Tyumen State University, 625003 Tyumen, Russia
3
Department of Cryolitology and Glaciology, Faculty of Geography, Moscow State University, 119991 Moscow, Russia
4
Institute of Northern Engineering, University of Alaska Fairbanks, PO Box 755910, Fairbanks, AK 99775, USA
5
I.S. Gramberg All-Russia Scientific Research Institute of Geology and Mineral Resources of the World Ocean (VNIIOkeangeologia), 190121 Saint-Petersburg, Russia
*
Author to whom correspondence should be addressed.
Geosciences 2020, 10(10), 412; https://doi.org/10.3390/geosciences10100412
Received: 7 September 2020 / Revised: 12 October 2020 / Accepted: 13 October 2020 / Published: 14 October 2020
(This article belongs to the Special Issue Gas Emissions and Crater Formation in Arctic Permafrost)
We present the results of studies of the methane content in soils of the active layer and underlying permafrost, as well as data on the emission of methane into the atmosphere in the dominant landscapes of typical tundra of the western coast of the Yamal Peninsula. A detailed landscape map of the study area was compiled, the dominant types of landscapes were determined, and vegetation cover was described. We determined that a high methane content is characteristic of the wet landscapes: peat bogs within the floodplains, water tracks, and lake basins. Average values of the methane content in the active layer for such landscapes varied from 2.4 to 3.5 mL (CH4)/kg, with a maximum of 9.0 mL (CH4)/kg. The distribution of methane in studied sections is characterized by an increase in its concentration with depth. This confirms the diffuse mechanism of methane transport in the active layer and emission of methane into the atmosphere. The transition zone of the upper permafrost contains 2.5–5-times more methane than the active layer and may become a significant source of methane during the anticipated permafrost degradation. Significant fluxes of methane into the atmosphere of 2.6 mg (CH4) * m−2 * h−1 are characteristic of the flooded landscapes of peat bogs, water tracks, and lake basins, which occupy approximately 45% of the typical tundra area. View Full-Text
Keywords: permafrost; landscapes; methane; Arctic; tundra permafrost; landscapes; methane; Arctic; tundra
Show Figures

Figure 1

MDPI and ACS Style

Oblogov, G.E.; Vasiliev, A.A.; Streletskaya, I.D.; Zadorozhnaya, N.A.; Kuznetsova, A.O.; Kanevskiy, M.Z.; Semenov, P.B. Methane Content and Emission in the Permafrost Landscapes of Western Yamal, Russian Arctic. Geosciences 2020, 10, 412. https://doi.org/10.3390/geosciences10100412

AMA Style

Oblogov GE, Vasiliev AA, Streletskaya ID, Zadorozhnaya NA, Kuznetsova AO, Kanevskiy MZ, Semenov PB. Methane Content and Emission in the Permafrost Landscapes of Western Yamal, Russian Arctic. Geosciences. 2020; 10(10):412. https://doi.org/10.3390/geosciences10100412

Chicago/Turabian Style

Oblogov, Gleb E.; Vasiliev, Alexander A.; Streletskaya, Irina D.; Zadorozhnaya, Natalia A.; Kuznetsova, Anna O.; Kanevskiy, Mikhail Z.; Semenov, Petr B. 2020. "Methane Content and Emission in the Permafrost Landscapes of Western Yamal, Russian Arctic" Geosciences 10, no. 10: 412. https://doi.org/10.3390/geosciences10100412

Find Other Styles
Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Article Access Map by Country/Region

1
Search more from Scilit
 
Search
Back to TopTop