Ecogenetic Features and Functions of Solods in Transural
ForestSteppes (within Sverdlovsk Oblast)

P. V. Meshcheryakov and E. V. Prokopovich

Institute of Plant and Animal Ecology, Ural Division, Russian Academy of Sciences,

ul. Vos’mogo Marta 202, Yekaterinburg, 620144 Russia;

e-mail: Mescheryakov@mail.ru

Received June 27, 2006

Abstract—Specific ecogenetic features of solods in the forest–steppe zone has been studied, and the role of
biotic and abiotic factors of soil formation has been estimated. Differentiation of soil horizons with respect to
the physical clay fraction accounts for specific features of their moistening, which is reflected in the ratio of
strongly and weakly crystallized forms of iron. Periodic changes in redox conditions results in iron segregation,
and a high content of fulvic acids accounts for its eluvial migration. These processes are controlled by soil
geochemical barriers.

DOI: 10.1134/S1067413609010044

Key words: solod, ecological functions, fulvic acids, forms of iron, segregation, illuvial migration, geochemical
barrier.

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