Study of forest plants species diversity in “Radomyshlske” forestry-hunting enterpise

Abstract

The types of plant diversity on the territory of the Radomyshl Forestry in areas with different types of forest vegetation conditions were investigated. 21 species belonging to 15 families and 18 genera have been identified. The main types of forest are determined (Pinus sylvestris-Vaccinium vitisidaea+V. myrtillus-Cladonia spp.+ Pleurozium; Pinus sylvestris-Calluna vulgaris-Pleurozium+ Cladonia ssp.; Pinus sylvestris-Vaccinium myrtillus-Pleurozium; Pinus sylvestris-Pteridium aquilinum-Vaccinium myrtillus-Pleurozium; Pinus sylvestris-Calamagrostis arundinacea+Convallaria majalis) and key indices of species diversity (Simpson, Shannon-Viviver, Yvnyanyoti and Margalef). Among the types of forest, the most widespread are green moss-shrub pine forests, and it is precisely the areas with this type of forest that are characterized by the highest indicators of species diversity and richness with peak indicators of the Simpson Index – 0.89; The Shannon-Weaver index is 2.55 and the Margalef index is 3.21. The indicators of the green moss-lichen pine forest, on the contrary, indicate a rather poor species diversity, namely Simpson's index – 0.75; The Shannon-Weaver index is 1.67 and the Margalef index is 1.65. However, this type of forest was characterized by the maximum level of equitability – 0.9. A comparative analysis of the species composition of the studied areas was also carried out to assess beta-diversity using the Jaccard index. Shrub-green moss pine forests with a dominance of blueberry and gorse have the greatest similarity (0.7), as well as green moss-small herbaceous and shrub-green moss pine forests with a blueberry dominance (0.6); the smallest – small-grass pine and green-mosslichen pine (0.2) Key words: types of diversity, beta-diversity, alpha-diversity, phyto-diversity, Polissia of Ukraine, types of forests.