Study of vegetation of water bodies of the urban environment

The article examines the vegetation of water bodies in different administrative districts of the city using the coefficient of P. Jaccuard. According to the results of a visual examination of the urbophytocenosis of objects, it was noted that the vegetation is represented by two formations: tree-shrub (system of green spaces) and herbaceous (ruderal). After analyzing the water bodies of the city of Tyumen for floristic similarity, it was concluded that the tree and shrub urboflora of the shores of water bodies is represented by 13 species. Ruderal vegetation in water bodies is represented by 51 species belonging to 22 families, of which 29% of the species belonged to the family Asteráceae, 12% – Brassicáceae, 10% – Fabáceae, 6% each – Amaranthus and Gramíneae, 4% – Polygonáceae, Convolvuláceae, Equisetophýtina, Fumarioideae and Rosaceae – 2%. After analyzing the data obtained, it can be noted that Tikhoe Lake and Olovyannikov Pond differ from each other in terms of the species composition of tree and shrub species, since the Jaccard diversity coefficient (KJ) tends to zero, and the flora of objects tends to unity. At the same time, most of all trees and shrubs are in an unsatisfactory condition. Having studied the ruderal vegetation, it was recorded that object 2 and 3 differ from each other in species composition, since the diversity coefficient according to Jaccard (KJ) tends to zero, and objects 1 and 3 have the greatest similarity, KJ approaches one. In general, it can be said that the selected objects are similar in terms of the species composition of ruderal vegetation. No species listed in the Red Book of the Russian Federation and the Tyumen region were found during the route surveys.