A Szovjetunio magashegységi okorendszerei és védelmük. (High-mountain ecosystems in the Soviet Union and their protection)
Ecosystème ; Géographie physique ; Haute montagne ; Kavkaz ; Montagne ; Pamir ; Protection de la nature ; Tjan'-San' ; URSS
Of high-mountain ecosystems the diversity of species, a remarkable ratio of endemics and the widespread distribution of relict species are characteristic. These ecosystems of the Soviet Union are highly susceptible to changes and it is difficult