Abstract
Kursk region of Russia has unique fertile soils. Heavy metals are among the factors that pollute the soil. The article is devoted to the study of the spatial distribution of heavy metals in soils. The relevance of the study is that the value of the soil is determined by its value for obtaining environmentally friendly agricultural products. Data on the content of heavy metals in the soil can prevent intensive cultivation of crops. The task of the work is to identify heavy metals that predominate in the soils of various landscapes of the Kursk region. The assessment of soil contamination with chemical elements was carried out in the course of geo-ecological studies of black earth soils in the Kursk region of Russia. The selected soil samples were examined by semi-quantitative spectral analysis. The results obtained were subjected to statistical processing. It was found that cobalt is the main pollutant in the vast majority of sampling points. In other zones, molybdenum, lead, zinc, and chromium predominate in approximately equal amounts. Soils in the surveyed area belong to the permissible category of contamination with chemical elements. Soil remediation should be applied in local areas.
Highlights
The problem of detection of agricultural soils contaminated with chemicals is under the control of state and local governments in different countries [1]
The task of the work is to identify heavy metals that predominate in the soils of various landscapes of the Kursk region
The structure of agriculture in Kursk region is dominated by crop production, the share of which in 2015 amounted to 57.4%, the share of livestock products accounted for 42.6% [3]
Summary
The problem of detection of agricultural soils contaminated with chemicals is under the control of state and local governments in different countries [1]. Pollution affects the quality of crop production and human health. This is understandable, since it is from agricultural soils that contaminated products come, which are harmful to animals and humans. The intensity of long-term emissions from industrial enterprises and the spatial distribution of pollutants are clearly established by the chemical composition and geochemical properties of soils, as it is the most stable and to some extent conservative component of landscapes. The structure of agriculture in Kursk region is dominated by crop production, the share of which in 2015 amounted to 57.4%, the share of livestock products accounted for 42.6% [3]. The region is among the leaders of Russian regions in the production of agricultural products
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