ISSN 2285-5785, ISSN CD-ROM 2285-5793, ISSN ONLINE 2285-5807, ISSN-L 2285-5785


Published in Scientific Papers. Series A. Agronomy, Vol. LXI, Issue 2
Written by Vitaliy MEDVEDEV, Irina PLISKO

Soils which were arable for a long time are typical polygenetic formations as the anthropogenic factors played the significant role in their formation alongside with natural ones. Under mechanical, chemical and ameliorative actions the natural soils lose a structure inherent in them, properties and modes. Amplifying anisotropy, spatial heterogeneity, preferential descending and ascending streams of a moisture, formed new types of horizontal and vertical soil profiles, the equilibrium density, ability to convertibility of properties and modes as the basic condition of counteraction to degradation processes is lost. Significant changes occur in thin dispersive mineral and organic parts. As a result of anthropogenous evolution for rather short historical time interval it is formed the new body - antropogenic transformed soil - agrozem which becomes a 4-dimensional body of the nature as its parameters are changed in space and time. This fact demands reflection in soil classification and corrective amendments in studying, management of their fertility and use. Possible scripts of the further anthropogenic evolution of soils are discussed: the degradation, balance and "smart" out-degradation transformation.

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