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DECOMPOSITION DYNAMICS OF PLANTS OF BOGS (DATA: VASYUGAN BOG) // Tomsk State Pedagogical University Bulletin. 2012. Issue 7 (122). P. 87-93

The article describes decay dynamics of dominant plant species in bog complexes of the south taiga subzone in West Siberia. On bog plant material decomposition has taken place during warm time of year when water table was low and oxygen passed easily in upper part of peat. Plant fractions are divided into two types in accordance of the character decay. Plant fractions are grouped in three groups relatively of rate decay. The maximum decay rate belongs to Menyanthes trifoliate L., the leaves and rhizomes losses are 80 % mass relatively initial value after two years of experiments. The roots and rhizomes of Eriophorum vaginatum L. decomposed slowly then other fractions; the losses were 20 % after two years of experiments. Sphagnum mosses were lost from 20 to 40 % of mass.

Keywords: bog, West Siberia, decomposition, fractions of plant matter, sphagnum mosses