About the Mobile Forms of the Compounds of Chemical Elements in Soils
T. I. Siromlya
Keywords: soil, chemical elements, forms of compounds, fractions, mobility, extragents
Pages: 307-318
Abstract
Different methods of the investigation of mobile forms of chemical elements in soil are described. The method of consecutive extractions is considered in detail, a comparative review is presented describing the most frequently extracted fractions of chemical elements (water-soluble, exchangeable, specifically sorbed, carbonate, bound with the organic matter, Fe and Mn oxides/hydroxiles, with aluminosilicates) and extragents used for their extraction. The advantages and disadvantages of various extragents are indicated, methods to increase their selectivity are outlined. The possibility to use the information about the concentrations of the mobile forms of chemical elements in soil for evaluations of the degree of industry-related soil pollution is demonstrated.
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