Ratio of Elements in Humic Acids as a Source of Information on Environmental Formation of Soils
M. I. Dergacheva1, O. A. Nekrasova2, M. V. Okoneshnikova3, D. I. Vasil'eva4, D. A. Gavrilov1, K. O. Ochur1, Е. E. Ondar5
1 Institute of Soil Science and Agrochemistry of Siberian Branch of RAS
2 Ural Federal University named after the First President of Russia B. N. Yeltsin
3 Institute for biological problems of cryolithozone Siberian Branch of RAS
4 Samara Academy of public and municipal administration
5 Tuva State University
mid555@yandex.com
Keywords: elemental composition, humic acids, soil, paleosoil, continental Eurasia, nаtural environment, reconstruction
Pages: 667-676
Abstract
The informative importance of one of the main signs characterizing humic acids of soils is considered, at diagnostics of the environment of their formation both at present and in the past. It is shown that the ratio of elements in humic acids exactly corresponds to the landscape conditions and quantitative characteristics of climatic indicators. They persist in time and can serve as one of the reliable indicators estimating the environment of different periods in paleogeografic history.
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