Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal. 2019. № 3(31). P. 51—72
03.00.00 BIOLOGICAL SCIENCES
UDC 581.524:582.475.2 (470.51/.54)
Terekhov Gennadii Grigorievich, Doctor of Agricultural Sciences
Botanical Garden Ural Branch of Russian Academy of Sciences Andreeva Elena Mikhailovna, Candidate of Biological Sciences
Botanical Garden Ural Branch of Russian Academy of Sciences Stetsenko Svetlana Karlenovna, Candidate of Biological Sciences
Botanical Garden Ural Branch of Russian Academy of Sciences Konashova Svetlana Ivanovna, Doctor of Agricultural Sciences
Bashkir State Agrarian University
SPECIES DIVERSITY OF GRASS AND SHRUB LAYER UNDER THE CANOPY OF ARTIFICIAL AND NATURAL SPRUCE DENDROCENOSES IN HERB-MOSS SPRUCE FOREST OF SOUTHERN TAIGA SUBZONE IN THE MIDDLE URALS
Abstract
The purpose of the research is to study the species composition of grass-shrub vegetation under the canopy of dark coniferous young stand of the second class of age. The article presents the detailed description of the grass-shrub layer under the canopy of artificial (30 years old Siberian spruce — Picea obovata Ledeb., and natural (stands with 50% spruce and fir (Abies sibirica Ledeb.)) dendrocenoses on the same logging in herb-moss spruce forest of Southern Taiga subzone in Sverdlovsk region. It was established that the species composition is much richer in the silvicultural plot. The difference in the number of species with a natural trees cenosis is twofold and threefold. The increase in the degree of closeness of the tree canopy reduces the occurrence, height and abundance of species and the mass of grassy vegetation that actively participates in the forest litter creation. Felling, carried out in crops with the aim of increasing the productivity of plantations, reduces the tree canopy closeness and, thus, maintains a richness of the species composition of the grass-shrub layer, which is most expressed at the canopy closeness of 0,5—0,7.
Key words
Closeness of wood canopy, litter, height, abundance, occurrence of species, phytomass.
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Bibliography link to this article:
Terekhov G. G., Andreeva E. M., Stetsenko S. K., Konashova S. I. Species diversity of grass and shrub layer under the canopy of artificial and natural spruce dendrocenoses in herb-moss spruce forest of Southern Taiga subzone
in the Middle Urals. Vestnik of Orenburg State Pedagogical University. Electronic Scientific Journal, 2019, no. 3 (31), pp. 51—72. DOI: https://doi.org/10.32516/2303-9922.2019.31.5.