A D Sambuu, O D Ajunova and A B Dapyldie

Tuvan Institute for exploration of natural resources SB RAS, Internacionalnaja str., Kyzyl, 667007, Republic of Tyva, Russian Federation

Abstract

The article deals with the characteristic feature of the dynamics of self-restoration of vegetation cover on the dumps of the Chadan coal mine of the Republic of Tyva. The initial zonal vegetation is dry-steppe. Currently, there is a high proportion of weed species in the herbage, the presence of trees, willows and a solid carpet of lower plants (green moss), which is not typical for dry steppes. Even after 40 years of restoration of vegetation on coal dumps, the species composition, dominant structure, and ecological groups of plants have not yet been formed. In general, the long-term dynamics of self-restoration of vegetation cover in the area of the coal mine is characterized by some xerophytization of vegetation.