Академическое издательство «Гео»

Сolored dissolved organic matter, thermocirques, Yamal lakes



KRIOSFERA ZEMLI, 2017, Vol. XXI, № 2, p. 33-42

Тhermodenudation on Yamal peninsula as a source of the dissolved organic matter increase in thaw lakes

Yu.A. Dvornikov1, M.O. Leibman1,2, B. Heim3, A.V. Khomutov1,2, S. Roessler4, A.A. Gubarkov5

1 Earth Cryosphere Institute SB RAS, P/O box 1230, Tyumen, 625000, Russia; ydvornikow@gmail.com
2 Tyumen State University, 6, Volodarskogo str., Tyumen, 625003, Russia
3 Alfred Wegener Institute for Polar and Marine Research, 14473, Telegrafenberg A43, Potsdam, Germany
4 FIELAX, 27568, Schleusenstr. 14, Bremerhaven, Germany
5 Tyumen Industrial University, 38, Volodarskogo str., Tyumen, 625000, Russia

This paper is devoted to the study of thermodenudation impact on concentration of the organic matter dissolved in lake water. Summarized are results of the laboratory tests on concentration of colored dissolved organic matter in water samples collected out of the lakes in Central Yamal. Analyzed is the difference of colored dissolved organic matter concentration in lakes with the coasts affected by active thermodenudation and in lakes with undisturbed coasts. Buried peat layers discovered in the thermocirque exposures appeared to have high concentration of dissolved organic carbon. It is established that average concentration of colored dissolved organic matter is 3.5–4.5 times higher in lakes with thermocirques.

Сolored dissolved organic matter, thermocirques, Yamal lakes

DOI: 10.21782/KZ1560-7496-2017-2(33-42)

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