Methods of preventing and controlling soil and water loss of soil mounds in abandoned mines in semi-arid areas

Abstract

The invention discloses a method for preventing and controlling water and soil loss of a soil pile in a mine abandoned land in a semi-arid area. The method comprises the following steps: step S1: soilis laid and compacted on a slope and a platform of the soil pile of the mine abandoned land; step S2: a plurality of rows of ecological bags are arranged on the slope of each step from top to bottomalong the height of the slope, and perennial shrubs and perennial herbs suitable for local growth environment are intercropped on the slope and the platform of the adjacent two rows of ecological bags; step S3: a degradable sand-proof net is used to cover the bare land and the platform on the slope surface; step S4: vegetation management is carried out regularly. Herbs and shrubs are respectivelyplanted on the slope and the platform of the soil pile in mine abandoned land. The rows of ecological bags are arranged on the slopes from top to bottom, which is conducive to soil and water conservation of the soil pile in mine abandoned land in semi-arid area.

Description

technical field [0001] The invention relates to a method for preventing and controlling the soil and water loss of the soil pile of the abandoned mine land, in particular to a method for preventing and controlling the soil and water loss of the soil pile of the abandoned mine land in the semi-arid area. Background technique [0002] Mining has caused severe disturbance to the surface, and the piles of abandoned land formed by the accumulation of a large number of peelings have changed the original mechanical composition and structure of the soil. In addition, the heavy trucks during the soil dumping process have severely compacted the surface, resulting in poor water conditions and barren soil. , Low biological activity and other issues make it very difficult to rebuild the vegetation of the mine waste land mound. Under the action of heavy rainfall, strong wind and gravity, surface erosion, gully erosion, and sandy surface erosion, subsidence, collapse, and landslides are pro...

AI Technical Summary

Problems solved by technology

[0005] Although the existing research results and patents are diverse, there is a lack of mature technologies suitable for the vegetation construction of mine slopes in semi-arid areas with relatively harsh natural climate conditions, and the pertinence is not strong; soil improvement technologies have large limitations and slow effects; Slope fixation and engineering greening technology has high initial investment costs and strict management and protection in the later stage, so it is not suitable for application in the ecological restoration of mine wasteland mounds in semi-arid areas; , there is almost no water and soil conservation technology that not only ensures the survival rate of vegetation but also effectively prevents soil erosion