Abstract
The features of ancient periglacial phenomena are widespread in landscapes lying beyond the modern permafrost zone. The specificity of the paleogeographic conditions in the south of the Baikal region resulted in the formation of paleocryogenic landscapes with hummocky-hollow landforms. The paleocryogenic mounds (hummocks) are of rounded or elongated shape, their height is up to 2–3 m, and their width is up to 20–25 m. They are separated by microlows (hollows). This paleocryogenic microtopography favors the differentiation of the pedogenesis on the mounds and in the hollows, so the soil cover pattern becomes more complicated. It is composed of polychronous soils organized in complexes with cyclic patterns. Light gray and gray forest soils and leached and ordinary chernozems are developed on the mounds; gray and dark gray forest soils and chernozems with buried horizons are developed in the hollows. The soils of the paleocryogenic complexes differ from one another in their morphology, physical and chemical properties, elemental composition, and humus composition. For the first time, radiocarbon dates have been obtained for the surface and buried humus horizons in the hollows. The results prove the heterochronous nature of the soils of the paleocryogenic landscapes in the south of the Baikal region.
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Original Russian Text © A.A. Kozlova, V.A. Kuz’min, E.P. Zazovskaya, 2013, published in Pochvovedenie, 2013, No. 10, pp. 1181–1192.
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Kozlova, A.A., Kuz’min, V.A. & Zazovskaya, E.P. Soils of paleocryogenic hummocky-hollow landscapes in the southern Baikal region. Eurasian Soil Sc. 47, 360–370 (2014). https://doi.org/10.1134/S1064229314050111
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DOI: https://doi.org/10.1134/S1064229314050111