FEATURES OF ONTOGENESIS AND GEOGRAPHY OF RENDZIC LEPTOSOLS IN THE WESTERN UKRAINIAN REGION
Journal Title: Вісник Львівського університету. Серія географічна - Year 2017, Vol 51, Issue
Abstract
The article deals with theoretical and methodological principals of process-genetic approach concerning the study of ontogenesis and geography of soils at the regional level. Methods of geographical and genetic investigation of ontogenesis and geography of Rendzic Leptosols have been improved through the introduction of modelling techniques, soil chronological rows, and balance of substances and energy capacity evaluation of soil formation. Peculiarities of Rendzic Leptosols ontogenesis in natural and natural-anthropogenic landscapes with different biolithogenic conditions of soil formation have been established. Based on current investigations, schematic map of geography of rendzinas in Western Region of Ukraine has been made up. Particular approaches have been justified according to distinguishing such stages of ontogenesis of Rendzic Leptosols as initial (primary) → perfect (development and improvement) → permanent (maturity and stability) → and evolution (self-development and quality changes). Chronological periodization of soil-geographic investigations of rendzinas in Western region has been achieved with periodization scheme of these studies made up. The analysis of energetic and thermodynamic properties of chronological rows of soil forming rocks and Rendzic Leptosols of Western region of Ukraine on different stages of their ontogenesis has been carried out. Parameters and indicators of elementary soil processes at different stages of rendzinas ontogenesis have been established. Formation peculiarities of morphological, physical, physical-chemical, and chemical properties of rendzinas on different stages of their ontogenesis have been shown. Consequently, characteristic features of rendzinas agrogenic transformation and scientifically based approaches towards usage and protection optimization of the investigated soils have been determined. Systematized and generalized pedochronologic information can be used to solve process-genetic, functional-geographical and classifi cation-diagnostic problems, and tasks of rational application and protection of Rendzic Leptosols of Western Region of Ukraine. Suggested results of the research can be applied towards bonitet soil evaluation as well as monetary estimation of the land, and the development of territory organization projects, aiming at optimizing the soil-ecological condition of agricultural land. Obtained results are recommended for improving methods of soil-geographic and soil-agricultural zoning.
Authors and Affiliations
Andriy Kyrylchuk
Keywords
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