Biotic factor in the ecological assessment of technogenic territory state (on the example of tailing ponds of Tokur gold recovery plant)

The complex analysis of indicators characterizing the ecological state of the Amur oblast north territory, disturbed by mining operations is presented in this article. The vegetative biomass of fragrant poplar ( Populus suaveolens Fisch.), growing in the area of tailings of Tokur gold recovery plant impact, was used as biotic indicator.