Miroshnik N. Forest ecosystems biological features of middle Dnepr Right bank in the conditions of the anthropogenic influencing

In the thesis description of transformation of forest arrays of Pinus sylvestris L. protective and recreative-health forests of middle Dnepr Right bank for 1988-2007 years in the conditions of the complex anthropogenic influencing of the Cherkassy's industrial agglomeration (pollution with NH3+NOх+SO2, recreation and forestry) on landscape-ekosystemic principles is resulted. Firmness of tipes, the stands productivity indexes and phytocenoses structure are considered. The features of effects degradation division in the structure of forest ecosystems depending on its description, the remoteness from the city and industrial area, interplay of structurally functional components of ecosystem, it's co-operation with contiguous natural ecosystems, dynamics of number and quality indexes of ecological background are described. Results in relation to development of the region vegetation depending on a structure and intensity of negative factors influencing are generalized. Spatial areas are selected after the anthropogenic violation degree of the forests and the assortment breeds of trees is developed for planting of greenery and reforestation in the atmosphere pollution conditions. Directions and methods for improvement of environmental aeropollution phytoindication, increase of forest ecosystems firmness and saving of their biodiversity are offered.