EVALUATION OF BIOINDICATION VALUES OF MORPHOMETRIC INDICES OF THE LEAVES OF ULMUS PUMILA IN THE ORSK-NOVOTROITSK INDUSTRIAL UNIT
In the article the possibility of using morphometric indices of Ulmus pumila leaves as bioindication parameters is considered. It has been established that with an increase in the degree of anthropogenic transformation of the environment the linear dimensions and the area of elm leaves are reduced, but the difference in comparison with the control can be established with a sample size of not less than 150-200. The length and width of elm leaves can be recommended for study for biomonitoring research.