The specificity of elemental compositions of apple berry in natural and urban conditions of the Republic of Buryatia

The article presents data on changes in the content of essential and potentially toxic elements in soils and samples of Malus baccata (L.) Borkh berry tree collected in the Republic of Buryatia. It is shown that the content of basic elements oxides in alluvial-ferric natural soils is lower than in soils of urban areas, except for mno, TiO2 and Fe2O3 oxides, which are typical for this type of soil. Soils collected from city streets are allocated Cu, Zn and Pb, the source of which is urban transport. The content of Na, Al, Si, Ca, Ti, Fe, Ni and Cu in the leaves of the apple tree of the urban environment is higher than in the areas remote from the city. The distribution of elements on the organs of the plant was studied. Fruits contain more P, K and S, while leaves contain Al, Ti, Mn, Fe, Sr, Ba.