The article is devoted to the study of changes in land use systems in various regions and natural zones of Russia for the period from 2000 to 2022. Spatial and temporal patterns of transformation of land use systems within the main agricultural territory of Russia were identified and analyzed. Main directions and tendencies of changes in the areas of the main land and proportions of sown areas of main agricultural crops are considered. The dependence of the transformation of land use systems on the agrarian reforms of the 1990s has been revealed.