northern subzone with the prevalence of coniferous trees southern subzone with equal shares of coniferous and decidious trees northern subzone of monodominant forests southern subzone of polydominant thermophilous forests
Forest-steppe zone
forest-steppe
Steppe zone
subzone of northern steppes subzone of southern steppes
Semidesert zone
subzone of northern semideserts subzone of southern semideserts
Desert zone
subzone of northern deserts subzone of southern deserts