FLORISTIC FEATURES OF THE TUVINIAN DEPRESSION AND TANNU-OLA MOUNTAIN RANGE AS A BOTANICAL-GEOGRAPHICAL BOUNDARY
I.A. Artemov
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
Artemov_1@mail.ru
Keywords: хребет Танну-Ола, Тувинская котловина, Убсунурская котловина, котловина Больших Озер, флора, ботанико-географическая граница, Tannu-Ola mountain range, Tuvinian depression, Uvs-Nuur depression, Great Lakes depression, fl ora, botanical-geographical boundary
Abstract
A list of vascular plant species present in the Tuvinian depression but absent in depressions of South Tuva and West Mongolia has been compiled. It is shown that Tannu-Ola mountain range is a boundary for southenly distribution of some steppe species. The range also forms a barrier for moisture carrying air masses. As a result the flora of the Tuvinian depression is enriched by forest and meadow species.
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