A geographical analysis of the dendroflora of Cheboksary in the greening system of the city

The paper presents the results of the geographical analysis of the dendroflora of Cheboksary. The landscaping system of Cheboksary is represented mainly by woody vegetation, which grows in public areas, in limited-use plantings, as well as along the streets and main highways of Cheboksary. Woody vegetation is represented by 73 species, which, according to the generally accepted systematics of plants, belong to 43 genera and 20 families. The geographical analysis of the dendroflora of Cheboksary is based on archaeological data from various reports. In the dendroflora of Cheboksary, 7 groups of the area have been identified, depending on their natural distribution: 1) aboriginal group, 2) cultural group, 3) hybrid group, 4) North American group, 5) East Asian group, 6) Mediterranean group, 7) European group. The dendroflora of Cheboksary is dominated by introducents, which account for 44 species. The most numerous of the introducers is the East Asian group, which makes up 41% of the total, the North American and European groups – 25% each, the Mediterranean group – 9%. The geographical composition of the dendroflora, depending on the element of the system of green spaces, showed that the largest number of introducers were identified in public plantings, which were represented by 40 species of trees and shrubs, in limited–use plantings – 29 species, along streets and main roads – 28 species. The analysis of the dendroflora by the ratio of hygromorphs has revealed that mesophytes predominate in the dendroflora of Cheboksary – 54,7%, xerophytes – 17,8%, mesoxerophytes – 12,3%.