Taxonomic composition of woody plants in the squares of the urban center of Perm

Abstract

Woody plants of public landscaping areas in the urban center of Perm create a favorable environment for the population and experience increased anthropogenic stress. The study of their taxonomic composition was conducted in 2014-2017. The article presents the results of a 2024 replication research, which are a summary of woody plant species and an analysis of the data obtained. The current assortment of public gardens in the city center includes 127 species and hybridogenic taxa belonging to 49 genera from 22 families, which is 46% of the dendroflora of Perm. Malus baccata, Sorbus aucuparia, Tilia cordata, Acer negundo, Betula aggr. aurata, Syringa vulgaris and Malus spp. have a high consistency. 19 species from 9 genera can pose a problem of biological contamination, among which the most dangerous are agriophytes: Acer negundo, Amelanchier × spicata, Caragana arborescens, Cotoneaster acutifolius, Malus baccata, M. domestica, Prunus maackii.  Over the past 10 years, species not recommended (Acer negundo, Populus (Sect. Tacamahaca Spach)) and recommended (Betula и Viburnum opulus) for landscaping have been increasingly excluded from the species composition of public green spaces and landscaping sites. The assortment of low, beautifully flowering and deciduous ornamental trees, shrubs, lianas and vines is insufficient; they are to be selected taking into account environmental features. It is necessary to avoid including the same type of assortment in various squares.