Академическое издательство «Гео»

Keywords: bog system, microlandscapes, peat deposit, methane, concentration, emission.



GEOGRAPHY AND NATURAL RESOURCES, 2015, № 1, p. 88-97

Methane emission from peat deposits of raised bogs in Pskov oblast

Yu.A. Fedorov*, D.N. Gar’kusha** and G.V. Shipkova*

*fedorov@sfedu.ru, galina_shipkova@mail.ru
**gardiml@yandex.ru

We discuss the results from natural experiments on determination of methane emission and its content in the main types of microlandscapes of raised bogs in Pskov oblast. The methane concentration in peat waters in the upper soil horizon varied, respectively from 17 to 7600 μL/L and from <0.01 to 33 μg/g of wet weight, with maximum values in heavily waterlogged microlandscapes of transitional moors, black water holes of the string-bog complex and in lakelets of the lake-denudation complex. The rate of methane emission into the atmosphere varied from <0.1 to 7.7 mg/mM2 per hour and, generally, correlated closely with its concentrations in peat waters and in the surface layer of earth materials in the microlandscapes under study.

Keywords: bog system, microlandscapes, peat deposit, methane, concentration, emission.
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