Palsa bogs are carbon sinks and help preserve permafrost in northern regions. However, under the influence of climate warming and permafrost thawing in peatlands, changes in their biogeochemical properties occur. Using the example of three sections made on the territory of the Numto Natural Park (KhMAO-Yugra), where the permafrost is extremely unstable, the distribution patterns of elements in the peat deposit profiles were determined. Determination of trace elements in the samples was carried out using mass spectral and atomic emission spectroscopy methods (ICP–MS and ICP–OES). The peat of the study area is characterized by low ash content. An increased content of Fe, Mn, and Cr was noted, which is typical for the peat of Western Siberia. The concentration of heavy metals traditionally considered as indicators of technogenic pollution (Cd, Pb, Cr, Ni, Cu) in peat is low due to the remoteness from the sources of technogenesis. The intraprofile distribution of metals is influenced by the botanical composition of peat. Dwarfshrub peat, compared to Sphagnum peat, has a higher content of Pb, Cu and Cd.
bugristye bolota, Zapadnaya Sibir', elementnyy sostav torfa, tyazhelye metally, radial'naya geohimicheskaya struktura, sfagnovyy torf, kustarnichkovyy verhovoy torf, valovoe soderzhanie
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