Saranenko I. The influence of heavy metals on 'soil-plant' subsystem in forest cultural biogeocoenoses in the town of Kremenchug.

The objects are components of ecosystems of city: soils, woody plants (Leafage of dominating types Aesculus hippocastanum L., Acer platanoides L., Robinia pseudoacacia L.), litter-fall, bedding. The aim is to evaluating changes of physico-chemical properties of soils under influencing of lets, to straighten out of intensity of migration of matters and heavy metals in conditions of industrial city, to reveal the geochemical anomalies of metals in soils propagation and the rate of dominating types of plantation species. Methods are the generally accepted assay techniques of physical-mechanical and chemical properties of soils, atomic absorption spectral analysis, Statgraphiсs for Windows v. 5. Investigations of the heavy metals (HM) on 'soil-plant' subsystem of forest cultural biogeocoenoses in the town of Kremenchug were carried out. We determined morphological, physical and chemical characteristics of soils with the further classification estimation and showed individual features of accumulation of heavy metals in soil, basic plantations species: Aesculus hippocastanum L., Acer platanoides L., Robinia pseudoacacia L., litter-fall, bedding; we calculated main migration indices of rotation of substances and separate elements in forest cultural biogeocoenoses; we made ecological estimation of contamination of soils (taking into account their buffering) and plants; we revealed HM geochemical anomalies. We made up a cartoscheme of contamination degree of the town soil and plantation. Spheres of use are nature protection measures, monitoring and training courses.