Inventory assessment of plantings of greening objects and city nursery (based on the example of Krasnoyarsk)

An important indicator of the comfort level of urbanized areas is the provision of city residents with high-quality green areas. In large cities of Siberia, the complex natural environment is aggravated by technogenic loads; accordingly, the creation (reconstruction) of urban greening facilities must be carried out on the basis of an assessment of environmental risks, the manifestation of which leads to various degradation processes of green spaces. The limited assortment and quantitative lack of shrubs in city landscaping leads to the absence of an important shrub layer in the urban landscaping system. The insufficient representation of shrubs in city landscaping and poor knowledge of their growth and development do not allow their high-quality implementation on landscaping objects. During the research, an assortment of shrub plants was studied at 24 landscaping sites, represented by parks, squares, streets (avenues) and boulevards, located in 7 districts of the city of Krasnoyarsk, exposed to various external factors on their living condition. As of June 2023, the range of landscaping objects under study is represented by 24 types of shrubs. 10 species are widespread in urban plantings, but with different participation: Hungarian lilac, caragana tree, Tatarian honeysuckle, rugose rose, brilliant cotoneaster, viburnum-leaved bladdercarp, mountain ash, two-needle currant, white dogwood, common barberry. In two and one types of plantings there are 7 species of plants, 1/3 of the established landscaping assortment. Absolute occurrence was calculated to analyze the quantitative participation of shrubs in the structure of urban green spaces. As research results have shown, the occurrence of shrubs varies from 4.2 % to 16.7 % in 14 species (58 % of the composition). However, more than 25 % of objects have 10 plants (42 % of the studied composition). It is worth noting that rare species predominate in the landscaping of parks, are less often used in public gardens and minimally in the landscaping of streets. The greatest participation in landscaping falls on the Hungarian lilac; its use is noted in equal shares in squares and streets, and less in parks. Thus, increasing the proportion of shrubs in the city’s landscaping, which perform a protective as well as aesthetic function, will lead to an increase in the comfort of life in urbanized areas.

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