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The floristic composition and ecological structure of the herb-shrub layer of pine phytocenoses of the natural monument of regional significance “Konevsky Bor” was studied. The layer contains 60 species belonging to 49 genera of 26 families. The most represented families are Ericaceae, Fabaceae, Poaceae, Asteraceae, Ranunculaceae, Violaceae. It has been shown that in pine forests with an average crown density of 70%, semiheliophytic species of grasses and shrubs account for 56.7%, heliophytic species – 43.3%. Among the hydromorphs of the tier, mesophilic species are the leaders (70%), mesoxerophytes and mesohygrophytes account for 18.3% and 11.7%, respectively. 60% of species belong to neutrophilic species, and 40% to acidophilic species. The composition of trophomorphs is dominated by species with moderate demands on soil fertility (66.7%); oligotrophs and eutrophs account for 25% and 8.3%, respectively. According to phytoindication, the ecological regime of the studied pine forests is characterized as “intermediate between light and shady forests, slightly acidic soils, normal moisture, intermediate between fairly rich and poor soils.” Plants of the herbaceous-shrub layer are representatives of 5 ecological-coenotic groups: upland species make up 38.3%, betular species - 30%, forest-steppe - 18.3%, meadow species - 10%, taiga - 3.3%.
Keywords:natural monument, northern forest steppe, pine forests, ecomorphs, ecological-coenotic groups
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