Abstract
Upon the investigations the contamination rate of soil and vegetation cover of the basin at river Debed and the impact of technogenesis on the agro-chemical properties of soil and yield capacity of agricultural crops has been identified. It has been found out that the content of heavy metal forms exceeds that of the control one by the following figures: Cu-in 47,5 and 31,8; Pb-32,9 and 36,1; Mo-35,9 and 23,8; Zn-9,5 and 19,1; Co-5,1 and 5,9; Cd25,5 and 23,1 times. The humus content has decreased in 1,2-2,7 times, that of the total and mobile nitrogen has decreased in 1,1-2,17 and 1,4-2,6 times, phosphorus content in 1,0-1,87 and 1,08-2,74 times, potassium content in 1,0-1,38 and 1,13-2,06 times. The environmental reaction has turned from the neutral and poorly alkaline into poorly acidic and acidic one. The amount of HM in the soil and plants has exceeded the MAC (maximum allowable concentration) and the yield capacity of agricultural crops has fallen down by 7,5-29 %.
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