BIOLOGICAL PRODUCTIVITY TREE SPECIES IN KURSK PLANTATIONS TECHNOGENIC LANDSCAPES MAGNETIC ANOMALY
Mining industry leads to the formation of technogenic complexes. The main way to restore disturbed land is forest recultivation. Not all species in the dumps are suitable for the growth of protective plantations. There are different ways to increase fertility of substrates from industrial dumps. On the sandy hydraulic mine dump Birch log Kursk magnetic anomaly (KMA) zemlevanie was applied that is coating the surface of the embankment by the fertile layer of various thickness. The restoration of the disturbed lands requires the creation of the fitoplantations with the highest biological productivity. The analysis of man of organic subterranean and ground matter was performed among average model trees. The increase in the mass of roots and ground biomass of the two layers technozem with thick fertile layer was detected. In technogenic dump landscapes special reclamation importance is attached to green parts of plants. Forest protects the surface of slopes from destruction, increases the concentration of nitrogen and ash elements in the fertile layer. The role of plantations in the transformation of the waste lands increase when mass of green assimilative organs increases. The fast growth of the trunk and larger branches of plants begins in 6-9 years. This leads to the predominance of ground biomass over subterranean. Most of the organic matter is accumulated in Robinia pseudoacacia the Hippophae rhamnoides and the Elaeagnus angustifolia. These species are widely recommended to use in forest land recultivation. In order to reduce the weeds legumes should be sown between rows. They supersede weeds and improve conditions for growth and development of trees and shrubs. It is advisable to conduct a composite recultivation of trees shrubs and grass.