Загрязнение орошаемых почв долины р. Машавера (юго-восток от Тбилиси) тяжёлыми металлами и возможности их мелиораций

Abstract

There are different concentrations of toxic elements fixed in the irrigation soils located near Madneuli Mining and Processing Plant in south-east of Tbilisi. The research conducted by us enables us to conclude that polluting heavy metals, predominantly cooper, cadmium and zinc in this case, have an active negative impact on the properties of soil, its composition and soil-forming processes taking place in the soil. This is evidenced by the decreased hydro-potential of the soil and disturbed balanced interaction between the steady, liquid and gaseous phases of the soil; and sharp qualitative and quantitative change, soil degradation, disturbance of vital functions of agricultural crops and sharp drop of bioefficiency are the case. A clear proof of this is the mutual saturation of agrophysical parameters of slightly, moderately and heavily contaminated soils with heavy metals.