Stryzhak O. The influence of environmental factors on the state of forest micromorphological soil formation in steppe zone.

The objects are etalon steppe ecosystems, artificial and natural forest geobiocenoses of southeast of Ukraine, monitoring forests of Prisamarje Dneprovs'ke, experimental areas of forest recultivation of the broken earth in Western Donbas. The aim is an exposure the level of separate ecological factors influence, their role in forming of micromorphological properties and coating's complex of forest geobiocenoses soils of steppe. The methods are field stationary monitoring and laboratory-analytical researches, ecological-geobotanical, soil science, macro- and micromorphological, physical and chemical. As a result the author suggests new methods of diagnosis of soil-forming processes in forest ecosystems of steppe. The concept of lack of degradation of soils in the steppe under the influence of forest vegetation is confirmed and developed. The author has developed quantitative coating complex indices and expanded the ecological formula of artificial forests formation. In the typology of natural and artificial forests of steppe zone by A. L. Belgard the quantitative indices of wetting gradations developed by L.P. Travleyev were included (1980). Finally the theory of lessivage and its derivatives was grounded. The derivatives form the differential-textural profile of forest chernozem texture without any sign of degradation and podzolization. Application spheres are activity of forestries and training courses.