Аннотация:A discovery and analysis of ecologically significant geochemical factors is a part of ecological -geological studies, which is capable to cause negative reaction in biota. The area of the northwest wing of Kacha anticlinorium (the Kacha – Bodrak Rivers watershed) was chosen as a key area for investigations. It was worked out the functional zonation of the region on the base of analyses of the composition of the lithology of rocks, soils and underground waters of drinking condition. The analyses of the microelement composition of oak leafs, potatoes, integrated with the data of the morbidity and death-rate of population were considered as bioindicators of the ecological conditions. On the base of the applying data the Map of Ecological-Geomechical Risk was produced.
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