Features of the species composition based on the trophic analysis of artificial woody plantations of the Kryvyi Rih mining and industrial district

Introduction. The study of the trophic characteristics of the species forming the artificial woody plantations on the anthropogenically altered territories of the Dnipro Steppe is an urgent task of forest protection and horticultural management in the Dnipro Region. Artificial woody plantations of Kryvyi Rih, which are located in contrasting ecological conditions and represent the main varieties of artificial woody and shrub plantations in the region, were chosen as the object of research. These are objects of horticulture, sanitary, water protection and urban forest protection tracts. Materials and Methods. The following methods were used to achieve the goal and fulfill the tasks of the study: forest taxation; phytocenological; dendrological; recording the dendroflora, determining phytomelioration and recreational functions of tree groups, as well as the vital state of tree vegetation; physiological, leaf surface area, number of leaves on model branches; analytical and statistical methods of processing materials for the analysis of the experimental data. Results. Woody ecosystems on the territory of the Kryvyi Rih mining and metallurgical region are very unevenly distributed. They are concentrated mainly in river banks, forest protection plantations, and artificial plantations of protective territories of settlements. Forest cover has significant differences in different territories of Kryvyi Rih. It does not reach the optimal level when forests have the most positive effect on the climate, soils, and water resources, mitigate the consequences of erosion processes. Neither does it suffice the needs of an increasing wood production. Creation of a forest seed base of tree species on the basis of selection will ensure a considerable enhancement in both productivity and biological resistance of artificial woody plantations to the climatically and anthropogenically changed conditions in the region. Conclusions. The type of ecological structure of woody plantations in the study areas is reflected in the duration of the environmental transformation effect of tree vegetation by trophic characteristics (from 45.46 % of mesotrophs and 31.82 % of megatrophs to 4.55 % of oligomesotrophs and oligomegatrophs) on the soil and edaphic conditions of the territory.