Mobile forms of heavy metals in soils of Middle Volga Forest-Steppe (Experience of multivariate regression analysis)статья
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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Regional statistical models have been developed, which demonstrate quantitative correlations between mobile Mn, Ce, Cu, Pb, Ni, Zn, and major soil-geochemical agents. They made possible evaluation of the impact of total metals content, humous content, pH, and redox conditions on the differentiation of heavy metals mobile forms. The paramount importance of organic matter has been revealed for migrations of Mn, Zn, and partially of Pb. The increase in soil solution pH contributes to Zn and Mn mobilization and to the decrease of mobile Pb compounds content. The mobile Cr concentrations are regulated by its total amount and by pH values. The fate of Ni is determined by the combination of all the agents enumerated.