PHYTOINDICATION STATE OF BETULA PENDULA IN THE URBAN ENVIRONMENT OF KEMEROVO

Abstract

The paper presents the results of studying plantations of Betula pendula Roth as an indicator of the quality of the urban environment. The results of long-term biochemical and morphological studies show that Betula pendula has low enzyme activity, increased water-holding capacity and high xeromorphic, which contributes to a better adaptation of the form to unfavourable conditions, especially to contamination of the urban environment with xenobiotics. The vital potential of the species was selected as the main bioindicative indicator to determine the level of technogenic loading, morphometric parameters, the content of sulfur sulfate and the level of development stability were as extra indicators. Such features of birch leaves as the ash and sulfur sulfate content is maximized under high industrial pollution and a large flow of vehicles. In the city park areas and the areas between bedroom communities, where the adverse environmental conditions are softened by multispecies group plantings and remoteness from pollution sources, the morphometric parameters are higher than in the main trunk highway areas, close to sources of pollution with the elevated levels of anthropogenic impact and direct exposure to gaseous emissions