Abstract
Background. Landscaping of urban environments significantly mitigates the negative effects of "urban heat islands", which in turn has a positive effect on many aspects of human life. Therefore, the purpose of our research was to identify droughttolerant rare and decorative species of woody plants with further recommendation for their inclusion in the ecosystems of the urban environment. Methods. For research, we selected from the collections of the Botanical Garden named after acad. O.V. Fomina 25 highly decorative species of trees with a height from 10 to 50 m, which come from temperate and continental climate zones. Among them, 14 species are uncommon and 11 species are widespread in mass culture in the Polissia and Forest-Steppe zone of Ukraine. The drought resistance test was conducted twice: in early June and also in early September. Relative drought resistance was assessed by following parameters: tissue hydration and water loss per unit time. Results. According to the results of the study, most of the 25 species of tall trees showed a high or average level of drought resistance. The most drought-resistant light-loving and shade-tolerant species were recommended. Species that may require additional care during cultivation (Phelodendron amurense and Styphnolobium japonicum) have been identified, which must be taken into account when landscaping urban areas. Conclusions. Among shade-tolerant trees, the following species can be recommended for cultivation in urban conditions as highly drought-resistant: Acer mandshuricum, Acer velutinum, Corylus colurna and Prunus padus. The following light-loving plants turned out to be the most drought-resistant: Liriodendron chinense, Ginkgo biloba, Acer saccharinum, Catalpa bignonioides, Catalpa fargesii and Tilia europea.
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