SEASONALLY FROZEN LAYER OF PEATLANDS IN THE SOUTHERN TAIGA ZONE OF WESTERN SIBERIA
This paper presents the results of the 2011-2017 ﬁeld studies of the thickness of seasonally frozen layer and the temperature regime of peat soils of oligotrophic bogs in the southern taiga zone of Western Siberia. The experimental observations have been carried out using the atmosphere-soil measurement system at diff erent depths from the surface down to 240 cm. The ﬁve study sites included: a hollow and ridge at the ridge-hollow bog complex, open fen, high and low riam. The result's analysis has revealed signiﬁ cant differences in the temperature regime of peat soils and the depth of seasonal freezing at sites with high and low levels of bog waters. The proposed regression model allows to predict the maximum depth of freezing, using the data on average maximum snow depth and mean winter air temperature.