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ECOLOGICAL COMPOSITION OF THE HERBAL LAYER OF BIRCH POLES IN THE NORTHERN FOREST-STEPPE OF THE TYUMEN REGION

Kulyasova Oksana Alekseevna  (Candidate of Biological Sciences, Associate Professor, State Agrarian University of Northern Trans-Urals (Tyumen) )

In the conditions of the northern forest-steppe of the Tyumen region, the ecological composition of the grass layer of birch groves was studied. It is shown that in the kolkovy forests with an average crown density of 60-70%, heliophyte grass species predominate (62.3%). Among the trophomorphs of the herbaceous layer, species with moderate requirements for soil fertility (78.7%) are in the lead. In the composition of hydromorphs, more than 60% of the species are mesophytes. Among acidomorphs, 82% of species belong to the group of neutrophilic plants. According to phytoindication, the ecological regime of birch groves is characterized as a regime of light forests, with normal soil moisture, with a salt regime of fairly rich soils and acidity from neutral to slightly acidic. Plants of the herbaceous layer of birch pegs are representatives of 6 ecological and coenotic groups: betular species make up 45.9%, forest-steppe - 21.3%, meadow - 18.1%, pine forests - 8.2%, weeds - 4.9%, taiga - 1.6%.

Keywords: ecomorphs, ecological-coenotic groups, birch pegs; northern forest steppe
 

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Citation link:
Kulyasova O. A. ECOLOGICAL COMPOSITION OF THE HERBAL LAYER OF BIRCH POLES IN THE NORTHERN FOREST-STEPPE OF THE TYUMEN REGION // Современная наука: актуальные проблемы теории и практики. Серия: Естественные и Технические Науки. -2023. -№01. -С. 28-32 DOI 10.37882/2223–2966.2023.01.22
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