SPATIAL STRUCTURE OF VEGETATION COVER OF STEPPE BELT OF IYUS-SHIRA DEPRESSION
N.I. Makunina, N.V. Igay
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
natali.makunina@mail.ru
Keywords: the spatial structure, vegetation, steppe belt
Abstract
Th e relief of steppe belt of Iyus-Shira depression (400-600 m a.s.l.) is the alternation of plain areas, cuestas and little
ridges. Th e main vegetation of plain areas is polydominant bunchgrass steppe. Th e vegetation of little ridges and
cuestas depends on steepness and exposition of their slopes. On steep sun-exposed slopes short grass petrophytic
steppes are located. On gentle shadowed slopes the herb bunchgrass steppes predominate.
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