Natural reforestation of Kuzbass dumps.
We study the restoration of coal mining dumps through reforestation in the forest-steppe zone of Kuzbass. 3 main forest-forming species (Betula pendula, Pinus sylvestris and Populus tremula) and 11 accompanying tree species were involved in the formation of forest stands. The main forest-forming species was Betula pendula. The amount of renewal was found to be 10.7, 3.1 and 1.0 thousand pcs/ha in sites with favourable, moderate favourable and unfavourable environmental conditions, respectively. The level of natural reforestation on dumps in the southern forest-steppe zone can be described as weak. The renewal of the Acer negundo invasion species was determined by a continuous drift of seeds on the dumps; however, its seedlings and young undergrowth did not reach a generative age.