Abstract
Abstract The vegetation of 5 lakes and 40 springs of Western Kazakhstan is considered. The relationship between the degree of mineralization and the composition of vegetation is revealed. The anthropogenic factor influences the vegetation of lakes and springs by increasing the number of ruderal and halophytic plants. With a decrease in the water level in lakes, processes of active salinization of the water area and the coastal part are observed, one indicator of which is vegetation. In the territories adjacent to the springs, the dominant role of mesotrophs and megatrophs in the structure of the flora of the springs is noted, which indicates the predominance of soils and ground with sufficient and excessive content of nutrients in the studied area. The flora of the springs in the region has a low degree of similarity. Cluster analysis of the flora of spring tracts confirm the heterogeneity of quantitative species composition.