EXPERIENCES OF BIOLOGICAL RECULTIVATION ON TAILINGS DAMS WESTERN YAKUTIA
Skilled and experimental works on recultivation on the mining and processing works tailings dam in the conditions of the Western Yakutia are carried out. In total 47 platforms of 100 sq.m in size on three sites are put: with drawing and the fertile layer of earth (FLE), the potentially fertile breeds (PFB) and mix FLE and PFB with crops of seeds of the introduced long-term herbs and introduction of mineral fertilizers. On the sixth year after recultivation on a site with FLE full overgrowing by vegetation within the sowed platforms, 60 % of a projective covering is watched their limits, shoots of a larch and pine; on a site with FLE and PFB – a projective covering in platforms of 70 %, beyond limits – 20 %, single shoots of willows; on a site with PFB – a projective covering in platforms on average 35 %, beyond limits – single plants, a projective covering only in places reach 10 %. On the tailings dam at biological recultivation dumping by a fertile layer or the materials replacing this layer is necessary. Recultivation of the tailings dam located in a recreational zone is of great importance for improvement of an ecological situation.