Tsepkova N. L. RussiaНальчикTembotov Institute of Ecology of Mountain territories, Russian Academy of Sciences, 37-a I. Armand Str., Nalchik 360051him_lab@mail.ru Author's articles Ecologo-biological characteristic of natural steppe biogeocenoses in the Central Caucasus (the Terskiy variant of vertical zonation, Kabardino-Balkaria)