Respondent
Theme
Rendzinas of the Podilski Tovtry: genesis, distribution, uses, protection
Defence Date
Annotation
Archives, stock, literature and maps that provide information on studying rendzinas
of the Podilski Tovtry were analyzed. Natural and anthropogenic conditions and factors that
determine the geography and ontogenesis of rendzinas of the Podilski Tovtry were
described.
We have defined the basic processes that contribute to the formation and development
of the genetic profile of rendzinas and pararendzіnas and discovered patterns of spatial
distribution within Podilski Tovtry. We have found that the rendzinas formation of the
Podilski Tovtry is influenced under the biogenic-accumulative and eluvial soil-forming
processes, including the decisive role played sod process, formation of humus, accumulation
of humus and leaching, calcination and decalcification. The main form of rendzinas spread
within Podilski Tovtry is pedostriya – strip with uniform surface soil caused by lithological
heterogeneity of parent material.
Thermodynamic and energy characteristics of parent material and rendzinas of the
Podilski Tovtry were developed. We have established the nature and direction of
development chemical, physical-chemical and physical processes and properties of
rendzinas of the study area at different stages and areas of their ontogenesis. It was
investigated macromorphological features of the formation and structure of the genetic
profile of rendzinas that are in various stages of ontogenesis. It has been established
processes and typical features of anthropogenic transformation rendzinas due to human
activities, which are manifested in a decrease of humus content, change of aggregate-
structural composition, deformation of pore, compaction of soil mass, disaggregation of soil
mass, formation of fractured-block structure, intensification of leaching and decalcification,
occurrence of horizons so crowded. We proved different ways of balanced use and
protection of rendzinas of the Podilski Tovtry, and we proved feasibility of their inclusion
to the objects of the soil-security infrastructure.
Key words: Podilski Tovtry, rendzinas, pararendzinas, pedostrialnist, ontogenetic
stages, soil-forming process, soil profile, genetic horizons, carbonates, humus,
granulometric composition.