Anatomical and morphological features of Pinus sylvestris growing on the dumps of the mining industry in the middle urals

The results of the study of anatomical and morphological parameters of Pinus sylvestris L., growing on the serpentine dumps of Anatol’sko-Shilovsky Mining, are presented. Adaptive morphological and anatomical changes that contribute to the survival of the species in extreme environmental conditions have been identified. A significant decrease in P. sylvestris morphometic parameters (tree height, the annual growth of the tree, and the branches) under dump conditions were established. Under the influence of unfavorable factors on the dumps (lack of nutrients and water, high rockiness of the substrate), the length and the cross-sectional area of the needles decreased. Of the anatomical features, it is important to note a decrease in the number of resin ducts with a tendency to increase their diameter.