Fluctuating asymmetry of the Acer negundo L. leaf: an indicator of its state and the quality of the urban environment

The purpose of this study was to analyze the protective function Acer negundo L. by assessing indicators developmental stability fluctuating leave asymmetry depending on value influence anthropogenic factors. materials were obtained from 25 test sites areas that differed in degree road transport impact 2018–2021 Irkutsk. values each site determined as average coefficients asymmetry, considering eight characteristics leaves collected them. These indicate A. is sufficiently resistant impacts, particularly effects emissions transport, compared with other types phanerophytes involved landscaping urbanized areas. coefficient weighted indicator between recreational and along highways 1.33. correlation development distance growth r = –0.64±0.18, which confirms connection these characteristics. Analysis variance used assess tree four classes traffic intensity (high, medium, low, absent), through a ratio, level n 0.70 demonstrates high connection. To limit implementation local flora, it recommended measures be gradually implemented remove parks, squares, gardens, adjacent territories, replacement woody vegetation species are well adapted grow habitats.