Mercury and its bonding forms in the Soil of the Tunka Depression

1st International Geographical Conference of North Asian Countries "China-Mongolia-Russia Economic Corridor: Geographical and Environmental Factors and Territorial Development Opportunities"

地球科学;生态环境科学;经济学

Lyapina, E.E.^1,2 ; Cherkashina, A.A.^3

Institute of Monitoring of Climatic and Ecological System of SB of RAS, Russia^1

Tomsk Polytechnic University, Tomsk, Russia^2

Sochava Institute of Geography of Siberian Branch, Russian Academy of Science, Irkutsk, Russia^3

关键词: Concentration coefficients;    Disturbed soil;    Earth's crust;    Geochemical parameters;    Group composition;    Method of processing;    National parks;    Native soil;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/190/1/012033/pdf
DOI  :  10.1088/1755-1315/190/1/012033

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

The work evaluates the general distribution of mercury in the soil cover of the Tunkinskaya depression (the Republic of Buryatia, the national park "Tunkinsky"). For this purpose, its gross contents in natural and agrogenically transformed soils were studied: plowlands, fallow lands, hayfields and pastures. The physico-technical characteristics of soils, the content of organic carbon, the group composition of humus are determined. The method of processing the results included the calculation of the ecological and geochemical parameters: the concentration coefficient relative to the background, MAC, Clark concentration relative to the Earth's crust, the Earth's soils, the identification of the relationship with the physical and technical characteristics of the soil, and the content of C02, CO2 carbonates, fulvic and humic acids. In soils, the largest part of mercury is in free form (>41%). The proportion of physically and chemically related mercury accounts for 9-16% of all mercury in the soil. The least amount of mercury in the soils is in the form of sulfides and chemically bound forms of mercury (