Regularities of the distribution and heavy metal forms in technogenically transformed chernozems of the southern Angara River basin and northeastern China

摘要

Specific features of heavy metals and As migration in the system soil-plant are considered on the basis of the results obtained in the analysis of different forms of toxic elements in technogenically transformed chernozems of the southern Baikal Lake basin. These results are compared to the data of analogous studies conducted in northeastern China. The regularities in the bioaccumulation of heavy metals and As were related to their forms, their concentration in the soils, and the plant species. Cadmium was found to be the most mobile element, which accumulated in the chernozems to the greatest degree; lead was the least mobile element.