Biomorphological structure of flora in Relic Oaks State Reserve (Trans-Baikal Territory)

O. D. Chernova, O. A. Popova, A. S. Prokopyev

Abstract


In this paper, we use Serebyakov's life-form classification to analyze the biomorphological structure of flora growing in Relic Oaks State Reserve (Trans-Baikal Territory). The reserve is located on the territory of Eastern Siberia that belongs to the Pacific Basin. In accordance with the established biogeographical division, this territory is at the boundary between two large floral regions of the Holarctic: Circumboreal and East Asian. It is notable for its phytodiversity and classified as a region with the dominating taiga, taiga-forest-steppe, and forest-steppe plant communities. The biomorphological analysis has shown the predominance of herbaceous plants over xylophytes in the flora of the reserve. Plants with fully or partially lignified shoots account for 11.8% and herbaceous plants, for 88.2% of the total number of flora species in the reserve. Shrubs are the dominating xylophytes on the territory of the reserve and dry-land polycarpous plants are the prevailing herbs. The Relic Oaks Reserve location at the boundary between the forest-steppe and steppe zones causes the predominance of short-rooted, long-rooted, and taproot herbaceous plants. 


Keywords


Eastern Siberia; Trans-Baikal Territory; Relic Oaks State Reserve; flora; life form (biomorph)

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DOI: http://dx.doi.org/10.15421/2017_116

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