Keywords: reclamation system, drainage, retaining structures, well-trees and shrubs, culturtechnics, biodegradation, economic efficiency.

// Мелиорация.– 2020. – №3(93) – P 15–22

Economic indicators of the main methods of utilization of tree and shrub vegetation shafts are determined. A new method of utilization by biological acceleration of
shaft decomposition with the preparation «Phlebiopin» is proposed. The economic and technological efficiency of the proposed method is determined.