Bioecological analysis of the flora of suburban and urban forests of Samara

Abstract

The article presents the results of the study and analysis of the flora of the forests of suburban and urban forests of Samara. 279 plant species have been identified in the study area, among which only five are rare and protected at the regional level (Campanula latifolia L., Fritillaria ruthenica Wikstr., Tulipa biebersteiniana Schult. et Schult. fil., Cephalanthera rubra (L.) Rich., Pulsatilla patens (L.) Mill.). In the spectrum of life forms, trees are represented by 24 species, shrubs – by 23 species. Among herbaceous perennials, the rhizomatous group of plants predominates – 57 species, or 20,4%. In the group of juveniles, numbering 68 species, or 24,3%, annuals predominate – 41 species, or 14,6% of the total flora. In the surveyed forests, the forest group of plants naturally dominates among the phytocoenotypes – 71 species, which is 25,4% of the total flora. The ecological group of mesophytes, being the leading one, includes 184 plant species, which makes up 65,9% of the flora. The analysis of the flora showed a significant proportion of weed-ruderal representatives. Indigenous oak-linden forests currently retain their positions in the region, however, maple forests occupy a significant territory among them. The anthropogenic factor (recreation, fires, clearings) has a significant impact on the floristic complex. Recreation and forest fires in some cases are the main reason for the transformation of forest plant communities in the territory of Samara and its suburbs.