Trace Elements in Fluvisols with Different Anthropogenic Load

Concentrations and depth distribution of the total content and forms of trace elements in fluvisols with different technogenic load were studied. Alluvial soddy saturated soil of the Oka river (Moscow region) was studied as soils with a low technogenic load. Increased concentrations of metals in the background fluvisol are observed in the riverbed floodplain, which indicates their entry during floods. In the fluvisol near the industrial center, the concentration of trace elements may not exceed hygiene standards due to their intensive removal from the landscape. Agricultural use can cause uniform depth distribution of total and mobile forms of the elements. Thus, the concentrations, depth distribution and speciation of trace elements in fluvisols with different technogenic loads depend not only on the scale of this load but also on the soil properties and the ratio of the processes of element input to and removal from the soils.