Abstract
Low temperature is оne оf the mоst significаnt limiting factоrs determining the distribution of tree species. Evaluation of the degree of freezing of tree and shrub species is of great importance for decorative gardening. Plants freeze a lot not only in harsh winters, but also during prolonged thaws with a subsequent drop in temperature, which negatively affects their ornamentation. In this regard, one of the main ways to preserve the ornamental and plant biodiversity of city parks in a temperate continental climate is to replenish existing plantings with frost-resistant tree species. It is the first study of the frost resistance of introduced trees and shrubs, which was made to isolate species adapted to the winter conditions of the temperate continental climate to form stable landscape compositions in urban parks. Based on the results of artificial freezing, species of woody plants with high frost resistance were selected: Betula kelleriana, Betula raddeana, Staphylea pinnata, Cotinus Coggygria and Pinus pallasiana. The above species of wood are recommended for sustainable landscape design in the city.
Highlights
Urban development causes an increase in the exploitation of natural resources to a greater extent, which leads to instability of the ecological potential of plants
Street greens help create a visual image of the city and provide additional public space, and secondly, it ecologically links large green spaces and improves the microclimate [3]
Fagus sylvatica and Armeniaca manshurica showed an average level of frost resistance of sprouts, bark and wood of annual shoots
Summary
Urban development causes an increase in the exploitation of natural resources to a greater extent, which leads to instability of the ecological potential of plants. The attitude towards sustainable development of the city’s ecology underlines the role of landscaping, and to achieve this goal, the “green zone” is considered one of the most essential tools for improving urban development [1]. Green zones play a very important role in urban environments and create a link between natural and human factors. Street greens help create a visual image of the city and provide additional public space, and secondly, it ecologically links large green spaces (parks, squares, etc.) and improves the microclimate [3]. High temperatures, and drought lead to deceleration of growth, and increase mortality of trees and shrubs
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