Physiological and biochemical characteristics of Populus tremula leaves in anthropogenic disturbed habitats

The main morphological, anatomical, physiological and biochemical characteristics of Populus tremula undergrowth leaves as resistance indicators under conditions of coal pit waste dump are considered. There has been established high variability of morphological parameters and chemical elements composition and anatomical structure peculiarities. There are reported the differences in the content of photosynthetic pigments and phenol compounds.