Abstract: Formation of microelement soil composition being developed in special bio-climatic conditions at the northern border of Mediterranean landscapes distribution are of great economic significance for viticulture evolution and growing up subtropical fruit and nut crops has been analysed by means of the concept of a soil chronofunction. The reserach objective consisted in determination of regularity in soil trace elements composition formation in a result of their concentration and dispersion under soil formation for rational organization of tillable lands monitoring and high quality assurance of crop products. Soil chronosequences were established in the course of studies at 20 archaeological sites dated from the ancient time to the first decades of the 20th century. Geochemical association of microelements which to the fullest extent reflects the results of biogeochemical accumulation during the calcaric cambisols soil formation was established. An offer was made with regard to the index of geochemical soil transformation or its individual genetic horizons which is based on the consideration of accumulation processes conserved components and removal of more migrationally movable ones of matrix soil. Specific lists of conservative and movable soil components depending on their carbonate content were ascertained allowing to determine the general change dependency of geochemical soil transformation index on time. Evaluation of geochemical soils transformation velocity has testified that this process proceeds in tree times more actively in leached soils than in carbonate ones. Slop lands with calcaric cambisols, being ploughed up by the plow ditcher under perennial plantings and under the influence of soil erosion are badly in need of fertilizer treatment for support of first of all, K, Mn, Co content in carbonate soil types and Zn, K, Mn, Mg in leached soil types.