Geochemistry of micro elements in brown soils with moss cover of the Carpatian biosphere reserve

The microelement composition (Pb, V, Cr, Zn, Mn, Cu) of the mountain-podzolic brown earth soils of the Chornohir and Marmarо reserve massifs of the Carpathian Biosphere Reserve was determined: background, under wet and dry moss (Sphagnum palustre L.). The increased content of trace elements (Cu, V, Zn, Mn) in the upper soil layer of the Chornohir massif was determined, which is explained by the presence of a clay component, and the lower content in the Marmaros massif — the presence of carbonates. Ranked series were constructed by the dispersion coefficient of microelements in soils covered with wet and dry moss Sphagnum palustre L. It was established that the soil under dry moss is practically not depleted of microelements, but in the presence of rains it becomes wet again and the sorption process resumes. It was found that the soils under the wet moss of the Chornohir massif are most depleted in Mn, Cu, and Zn; and the Marmaros massif — Mn, Pb, and V. The geochemical behavior of the studied microelements in soils under wet moss was analyzed. It was concluded that wet moss has a selective ion exchange, is a geochemical barrier, and that is why lithochemical search and monitoring works should be carried out in the areas covered with wet moss, taking into account the established features.