Kratyuk O. Forest-biological peculiarities of functioning of forest plantations of Western and Central Polissia in conditions of semi-free keeping of game animals

Object of investigation – forest stands in captives of Western and Central Polissia. Subject of research – forest-biological peculiarities of forest plantations functioning in conditions of semi-free keeping of game animals. The aim of work – to detect regularities of functioning of forest stands in conditions of semi-free keeping of game animals, to сreate the system of effective methods of early diagnostics of hunting-economy digression stages of forest stands, to develop recommendations on non-depleter conducting of captive farm in forests. Research methods – forest-taxation, electrophysiological, florictic, geobotanical, bioindication, soil sciences аnd mathematic-statistical. Scientific novelty –current trends of captive economy development are detected on a forest-typical basis, and inventory of objects of game animals semi-free keeping is conducted on the territory of the Western and Central Polissia; conceptual basis of use of dielectric indicators (impedance and polarizing capacity) is developed for express diagnostics of conditions of pine forest stands in captives depending on their age and type of forest ecological conditions and also taking into account dynamics of number and species composition of the main livestock of hoofed animals in captives of various duration and intensity of exploitation; it is established that long captive keeping of animals provides a positive trend of accumulation of a humus and biophilic elements in soils of wet sugruds that connected both with living activity of wild animals and with an intensification of natural processes of soil formation humus-accumulative (soddy) type; regularities of cenomorphs transformation of grass–dwarf-shrub layer are detected, in particular decreasing of the part of grass perennial species and dwarf-shrubs, and also increasing of the part of annual and biennial plants in species composition and in the projective cover – as a result of long captive keeping of hoofed animals in such forest types: fresh and wet oak-pine subir, fresh and wet hornbeam-oak-pine sugrud, moist black alder sugrud which led to change of initial phytocenosis into their zoogenic derivatives. Practical value – results of research have an important significance for identification of hunting fauna influence on forest stands in captives. New approaches to functioning of captives in forest plantings are developed and the appropriate measures for minimization of negative impact of captive keeping of hunting animals on forest ecosystems are proposed. Scope: forestry.