ASSOCIATIONS OF BOREAL VEGETATION IN THE BOLSHOY ON RIVER BASIN (WESTERN SAYAN)
N.B. Ermakov
Central Siberian Botanical Garden, SB RAS, 630090, Novosibirsk, Zolotodolinskaya str., 101
brunnera@mail.ru
Keywords: бореальные леса, классификация, метод Браун-Бланке, Западный Саян, Сибирь, boreal forests, classification, Braun-Blanquet method, Western Sayan, Siberia
Abstract
Classification of zonal boreal forests in the Bolshoy On River basin (Western Sayan) was performed. Two associations ( Larici sibiricae-Abietetum sibiricae ass. nova hoc loco и Carici iljinii-Pinetum sibiricae ass. nova hoc loco) and two non-rank communities included in the class Vaccinio-Piceetea Br.-Bl. in Br-Bl., Siss. et Vlieger 1939 were described. The altitudinal spectrum of forest communities of the studies area is represented by two geographical boreal forests types - Urals-Siberian and Eastern Siberian. It indicates that boreal vegetation of the Bolshoy On River basin keeps transitional ecological features between ultra-humid cyclonic and moderately humid anti-cyclonic bioclimatic sectors. Importance of floristic features of boreal forests and results of syntaxonomic analysis for defi nition of bioclimatic subdivisions in the Altai-Sayanian mountain region is discussed.
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