ECOLOGICAL FEATURES OF HEAVY METAL ABSORPTION BY WOODY PLANTS OF THE NORTHERN PART OF THE CITY OF KREMENCHUG

The content of heavy metals (HM) was determined in the fallen leaves and litter of trees; quantitative indicators of migration for Fe, Mn, Zn, Cu, Ni, Pb, Cd were calculated in the system "soil – plant" for the dominant species of tree species in the Northern part of the city of Kremenchug. It is determined that the biological cycle of substances were intensive in the cultural ecosystems. The biological cycle of iron, manganese, copper were inhibited. The transfer of emissions from enterprises (including heavy metals waste) towards green zone determines the maximum accumulation of the elements in the leaves of Aesculus hippocastanum (Aesculus hippocastanum L.) аnd Norway maple (Acer platanoides L.). The correlation coefficient R = 0,7. The intensity of fruiting of woody plants in comparison to the background values were decreased. In maple the length and width of seeds on average 30,0 ±0,6%, graystone normal – 19,8 ± 0,2 %, Robinia pseudoacacia – 3,8 ± 0,1 %. The plants of the Northern part of the city were more contaminated. The total concentration (SPC) for the tree species was the following: 9,8 – strong pollution; and 5,5 4,9 - average pollution. Norway maple is the most suffering species from the effects of environmental factors. The seeds of Robinia pseudoacacia were the most resistant. The deviations from benchmark generative organs of Aesculus hippocastanum were medium