NATURAL REGENERATION OF WOODY VEGETATION ON LUCHEGORSKY TECHNOGENIC DEPRESSION (PRIMORYE)
Conducted research route dumps Luchegorsky Mine to determine the dynamics of natural regeneration of woody vegetation, which occurs due to the trembling poplar – Populus tremula L., Asian white birch – Betula platyphylla Sukacz, hairy alder (Manchurian alder) – Alnus hirsuta (Spach) Turcz. ex Rupr, goat willow – Salix caprea L. The plants of these species are unpretentious to the soil conditions and the first to settle in these areas. Total taxonomic composition of woody plants are more than 15 species. In the dumps with favorable edaphic conditions of the process of natural regeneration is successful. Its duration is 18–20 years. It was found that 1 hectare of disturbed area grows on average about 2,000 seedlings of woody plants. Positive dynamics modeling tree growth and development celebrated throughout the 20-year period and for each type is very specific. It was determined that the Korean poplar is characterized by the high, trembling poplar and poplar Maksimovic – optimal, almost identical, and Asian white birch – slow energy growth processes.