Assessment of revegetation with waste coal on the reclaimed sites in the Kemerovo Region – Kuzbass

Irina Semina,Sergey Solovyev,Vladimir Androkhanov,L.D Pavlova,V.I Klishin

doi:10.1051/e3sconf/202133004011

Abstract

The paper presents the results of research and assessment of the revegetation degree in reclaimed areas using coal preparation waste in the Kemerovo region – Kuzbass. Reclamation of disturbed lands was carried out by backfilling the worked-out pits of the former coal mine with coal preparation waste and forming a root layer on the leveled surface of the waste using materials of the fertile soil layer (FSL) and potentially fertile rocks (PFR). During the field survey of reclamation sites, it was found that when sowing perennial grasses (Bromopsis inermis, Medicago sativa, etc.) or planting trees and shrubs (Hippophae rhamnoides, Pinus sylvestris, etc.) on the formed root layer from the PFR and / or FSL, favorable conditions are created for the formation of the primary phytocenosis in the reclaimed areas. The studies also showed that in reclaimed areas using a fertile soil layer for the formation of a root layer, a gradual restoration of soil properties is recorded in the surface covered layers, which in some parameters are close to natural soils common in the adjacent territories.

Highlights

The soil and vegetation cover of the Kemerovo region – Kuzbass is rich and varied
Reclaimaed site No 2, of 3 years old, with dumping of light loams (PFR) as a root layer, without sowing grasses (Fig. 1), is characterized by a large species diversity – 34 species, but with a very small projective cover – no more than 15%
The arboreal and shrub layers are represented by several specimens of Acer negundo L., Pinus sylvestris L., Populus nigra L., and Hippophae rhamnoides L., and the herbaceous layer is represented by forbs of ruderal species

Summary

Introduction

The first attempts to neutralize the consequences of the negative impact of mining, including coal mining, on the environment through the purposeful formation of vegetation cover on disturbed lands began to be made in the industrially developed countries of Europe at the beginning of the 20th century [1]; on the territory of the former Soviet Union, this process began in the 50’s of the XX century in Donbass [2]. Various reclamation technologies are used, taking into account the specifics of local natural resources, physical and agrochemical properties of substrates, and special attention is paid to the selection of suitable plant species for the formation of vegetation cover. Studies on the restoration of vegetation cover in reclaimed areas with coal preparation wastes are relevant

Methods

Results

Conclusion