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The article presents the impact of the green economy on the urbanized ecosystem of the city of Almaty. The concept of green economy is considered as sustainable development with minimal risks to the environment and the reduction of the negative impact of human economic activity on the environment, as well as the development of this direction in the country and, in particular, in the city of Almaty. A phased process of transition to a green economy is shown, the implementation of the “Zhasyl Almaty” project, where, according to the concept of transition to a green economy, according to the concept of “smart cities”, one of the main goals of the development of Almaty is to preserve natural resources, comfortable living conditions for the population and improve the quality of life in all areas of Almaty, which is the main requirement of a green economy. In recent years, the growth of new buildings in the city of Almaty has intensified the processes of anthropogenic impact on the urban flora. The existing experience of green building in the city of Almaty does not fully take into account the specific environmental conditions of various districts of the city and the level of their technogenic pollution, and the issues of the state of plantations in residential and industrial areas, the resistance of vegetation to the impact of the urban environment are ignored. Due to the increasing density of urban development with multi-storey buildings (more than 20 floors), it is becoming increasingly difficult to realize the concept of a green city of Almaty.

The article contains information about the composition of urban floras in Almaty. It was revealed, that urban flora of Almaty is represented by 396 species belonging to 204 genera and 73 families. The basis of the urban flora of the city of Almaty is angiosperms (92,0%), gymnosperms are represented in the flora in 31 species (7,8%) and 1 species represented by ferns (0,25%). The class Liliopsida (monocotyledonous) is represented by 4 families or 5,4%. Class Magnoliopsida (dicotyledonous) is represented by 67 families or 91.7%. In the gardening of Almaty city, there are 54 species (25,3%) of trees and shrubs of the local (natural) flora of Kazakhstan (9 coniferous and 45 hardwoods) from 33 genera and 19 families. In the gardening of Almaty city 159 species (74,6%) of woody and shrub introducents are used, that is, plants grown in the soil outside the range of their natural distribution. Of these, 22 are coniferous and 137 hardwoods of 61 genera and 34 families.

The article provides an analysis of the biodiversity of the flora of Baum grove in Almaty. In the Baum grove, we identified 122 species of plants belonging to 93 genera and 43 families. Of the 122 species, 43 species are trees, 16 species are shrubs and 63 species are herbaceous plants. Analysis of the leading families of the entire flora of the Baum grove showed that the largest families are: Asteraceae, Rosaceae, Poaceae, Fabaceae, Aceraceae, Oleaceae, Brassicaceae, Pinaceae, Ulmaceae, Chenopodiaceae, Cupressaceae and Salicaceae. Analysis of the largest genera of the entire flora of the grove showed that the largest genera of the grove are: Acer, Fraxinus, Ulmus and Artemisia. Of the 59 tree-shrub species found in the grove, 22 species represent the local natural flora of Kazakhstan, which belong to 14 families and 20 genera. The remaining 37 species are introduced species belonging to 21 families and 28 genera. The introducents found in trees and shrubs in the grove of the Baum Grove in Almaty have different centers of origin. Among the trees and shrubs introduced, most of all in the Baum Grove are species from North America and the Palearctic. The analysis of the taxonomic structure showed the absence in the Baum grove of Almaty of lycopodiales, equisetums and ferns.