Features of Microelement Composition of Ordinary Chernozems of the Azov and Lower Don Regions

Abstract

Ordinary chernozems in the Azov Plain have a low background content of mobile zinc compounds, a sufficient supply with copper and an increased content of lead compounds. This specificity of the regional microelement composition is due to the high carbonate content in the soil profiles, the natural enrichment of littoral geochemical landscapes and the effect of the significant sources of microelement emission (Mariupol metallurgical enterprises, Novocherkassk regional power station, etc.). The high buffer capacity of soils in the Azov region significantly mitigates the negative effects of pollution.

Effect of Heavy Metals on the Enzymatic Activity of Haplic Chernozem under Model Experimental Conditions

“…Chemical contamination is frequently due to the input of Heavy Metals (HMs) into the soil. The specific ability of soil to sorb and distribute the arriving HMs among its components determines the state of the entire ecosystem of current interest is an objective estimation of the ecological status of soils, which is reduced to the revelation of factors determining the toxicity level of the contamination (Chaplygin et al, 2014;Minkina et al, 2015;2017a;Hu et al, 2014;Mandzhieva et al, 2014). The biological activity of soils is an essential parameter of their ecological status.…”