Humus Formation and Elemental Composition of Humic Acids of the Automorphic Soils of Siberia
B. M. Klenov1, G. D. Chimitdorzhieva2
1 Institute of Soil Science and Agrochemistry of SB RAS
2 Institute of General and Experimental Biology of SB RAS
klenov@issa.nsc.ru, galdorj@gmail.com
Keywords: humus, humus composition, humic acids, degree of aromaticity (benzoidity), continentality, Siberia
Pages: 665-671
Abstract
The humus formation and elemental composition of the macromolecules of humic acids have been considered for the example of automorphic soils of Siberia such as grey forest soils, chernozems and chestnut soils as compared to those of the analogous soils of the European part of Russia. It has been revealed that with an increase in the continentality of climate the essential changes in the structure of humic acids in soils of similar genesis occur in the meridional direction.
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