The microelemental composition of soils in the Voronezh district has b
een investigated. Regularities governing the spatial distribution of r
are and trace elements-titanium, chromium, vanadium, nickel, beryllium
, barium, zirconium, gallium, strontium, boron, iodine, molybdenum, ma
nganese, zinc, and copper-have been discovered. Concentrations of thes
e elements in soils are the rationale for the region alization system.