Академическое издательство «Гео»

Key words: Pinus sibirica, living form, forest-tundra mountain ecotone, Aktru mountain glacial basin, the Altai.



Rastitel'nyj Mir Aziatskoj Rossii (Plant Life of Asian Russia), 2016, № 1, p. 16-23

Pinus sibirica (Pinaceae) living form at forest-tundra mountain ecotone
in Severo-Chuisky Range (the Altai Mountains)

S.A. Nikolaeva, E.O. Filimonova

Institute of Monitoring of Climatic and Ecological Systems, SB RAS,
634055, Tomsk, Academichesky prosp., 10/3, sanikol1@rambler.ru, smelena82@mail.ru

Seven Pinus sibirica living form (single-stemmed, few-stemmed and multi-stemmed straight-stemmed trunk trees, supra nival skirted, shrub-like form, elfin tree, and living windfallen tree) as well as one relatively autonomous morphological structure (elfin wood form in the tree butt of the straight-stemmed trunk mother tree) are identified and described at forest-tundra mountain ecotone in the Aktru mountain glacial basin (Severo-Chuisky Range, the Altai Mountains). Ways of their formation are considered. The main reason of the formation of the living forms excluding the one-stemmed straight-stemmed trunk trees with symmetric crown is death of tree fragments because of weather factors or geomorphological events. During XX century the climatic conditions at the forest-tundra mountain ecotone in the basin were favourable for growth of the living forms of P. sibirica straight-stemmed trunk trees.

Key words: Pinus sibirica, living form, forest-tundra mountain ecotone, Aktru mountain glacial basin, the Altai.
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