Mobile fractions of heavy metals in the soils of Kuzbass (Western Siberia)

6th Scientific Conference with international participation "Reflection of Bio-, Geo-, Anthropospheric Interactions in Soils and Soil Cover" in memory of RS Ilyin

地球科学;生物科学

Akinina, A.N.^1 ; Seredina, V.P.^1

Department of Soil Science, Soil Ecology in Biological Institute, National Research Tomsk State University, 36 Lenin Avenue, Tomsk

634050, Russia^1

关键词: Abiotic conditions;    Coal mining industry;    Comparative assessment;    Heavy metals in soil;    Man-made landscapes;    Mineralogical compositions;    Organic matter content;    Oxidation reduction potential;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/201/1/012001/pdf
DOI  :  10.1088/1755-1315/201/1/012001

学科分类：生物科学（综合）

来源: IOP

【 摘 要 】

Kuzbass is an industrial conglomerate of the Western Siberia with a developed coal mining industry, which creates a powerful techno-genic impact on the components of the environment, in particular, on the soil cover. This study considers the ecological state of soil ecosystems (natural and techno-genic), associated with the coal industries facilities in the Kuzbass. Comparative characteristics of the content of mobile fractions of heavy metals (HM) (Pb, Cd, Cu, Zn, Mn, Ni, Co, Cr) in soils of natural and man-made landscapes are given. It has been established that the degree of the mobile fractions of heavy metals in soils of the natural ecosystems is determined by coarseness of grading, oxidation reduction potential (ORP), acidbase properties, organic matter content. Unlike natural soils, the abiotic conditions of soil formation (mineralogical composition, the ratio of coarse earth and fine earth in the soil mass) and the degree of severity of organic-accumulative processes are main factors that determine level content of the mobile fractions of heavy metals in the soils of the techno-genic systems. A comparative assessment of the inactivating ability of soils with respect to pollutants was carried out. It is established that the soils of the natural and techno-genic ecosystems with respect to heavy metals are characterized by different buffer capacity. The soils of techno-genic landscapes have smaller indicators of inactivating ability. Among the techno-genic soils, the minimum values of the buffer capacity are noted for the initial embryo earth. The information obtained can be used in the monitoring research to monitor the level of the man-caused impact on soil ecosystems in Kuzbass and to prevent negative processes in land use.