Methane and carbon dioxide fluxes in the waterlogged forests of Western Siberian southern and middle taiga subzones
M.V. Glagolev1,2,3,4, D.V. Ilyasov1, I.E. Terentyeva2, A.F. Sabrekov1,2, O.A. Krasnov5, S.S. Maksutov2,6
1Institute of Forest Science, Russian Academy of Sciences, Sovetskaya 21, Uspenskoe, Moscow region, 143030, Russia
2National Research Tomsk State University, 36, Lenin Avenue, Tomsk, 634050,Russia
3Lomonosov Moscow State University, GSP-1, Leninskie Gory, 1/12, Moscow, 119992, Russia
4Federal State Educational Institution of Higher Professional Education, 16, Chehova, Hanty-Mansijsk, 628012, Russia
5V.E. Zuev Institute of Atmospheric Optics of Siberian Branch of the Russian Academy of Science, 1, Academician Zuev square, Tomsk, 634021, Russia
6National Institute for Environmental Studies, 305-8506 Japan, Ibaraki, Tsukuba-City, Onogawa 16-2
Keywords: заболоченные леса, потоки метана и диоксида углерода, парниковые газы, waterlogged forest, methane and carbon dioxide fluxes, greenhouse gases
Abstract
Field measurements methane and carbon dioxide fluxes have been conducted on two sites of Western Siberia in south and middle taiga on August 16-24, 2015. Static chamber method had been used. Two measurement sites were chose in Bakchar bog, Tomsk Region, for typical local ecosystems (from oligotrophic bog to enclosed forest and periodically flooded forest) and in waterlogged forest near Shapsha settlement, Khanty-Mansi Autonomous Region. Maximum methane fluxes have been measured from the overmoistening territory of burnt birch forest (median is 6.96; lower and upper quartiles are -3.12 and 9.95 mgС × m-2 × h-1, respectively). Minimum of these parameters (among the above objects) was measured in the periodic seasonal waterlogged forest (median, lower and upper quartiles are -0.08, -0.14 and -0.03 mgС × m-2 × h-1, respectively). These data may be used for estimation of regional methane fluxes from waterlogged and periodically flooded forests and for forecast of their influence on the total balance of greenhouse gases in the atmosphere.
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