Buts Y. Scientific and methodological bases of relaxation of ecogeosystems under the technogenic loading of pyrogenic origin

The thesis is devoted to the substantiation of scientific and methodical bases of relaxation of ecogeosystems under the technogenic loading of pyrogenic origin. In the dissertation work The technogenic influence of pyrogenic processes on the components of the environment and its state are systematized. The concept of "pyrogenic relaxation of ecogeosystems" and its relation with other processes of post-pyrogenic research are proposed. The theoretical and methodological estimations of technogenic risk of pyrogenic origin of ecogeosystems of Ukraine are substantiated. The estimation of the degree of anthropogenic risk of damage to forest ecogeosystems in the Kharkiv region was calculated, and corresponding cartographic works were constructed. The regularities of post-pyrogenic relaxation of ecogeosystems of the Kharkiv region, which consist in the transformation of the constituent components of ecogeosystems, are established. Forest lowland fires sharply change the morphological form of the upper part of the soil profile, forming a new pyrogenic horizon. The influence of the technogenic loading of pyrogenic origin on the geochemical migration of heavy metals takes place. The range of precipitation of hydroxides and the region of predominance of soluble hydroxocomplexes have been studied by constructing concentration-logarithmic diagrams (CLDs). The calculations can be used to predict the geochemical migration of heavy metals in soils after the man-made consequences of emergencies of pyrogenic origin. Complex mathematical models of geochemical cycles have been developed, with the help of which estimations and predictions of geochemical migration processes in the soil environment of ecogeosystems during anthropogenic loading of pyrogenic origin are obtained. The obtained models of heavy metal behavior are adequate for compiling a predictive estimation of their geochemical migration and accumulation in ecological systems as a result of the influence of the technogenic loading of the pyrogenic agreement. The conditions of concentration and migration of compounds of heavy metals are established, the equation for calculating the concentration of moving forms of heavy metal compounds is derived. A regression model is proposed that takes into account the influence of a group of factors on the relaxation of ecogeosystems. Restoring ecogeosystems should be implemented taking into account post-pyrogenic relaxation. For this purpose, recommendations have been made on the rational use of nature and management decisions to ensure the environmental safety of post-pyrogenic relaxation processes of ecogeosystems after man-made emergencies of pyrogenic origin.