Method for restoring vegetation and ecology of opencast coal mine dump in steppe area

A technology for open-pit coal mines and vegetation restoration, applied in the fields of botanical equipment and methods, land preparation methods, and lawn growth, etc., can solve problems affecting grassland ecosystem services, loss of plant community biodiversity, and changes in soil and vegetation structure and composition. , to achieve the effect of enriching plant species, improving survival rate, ensuring stability and safety

Active Publication Date: 2018-10-02
INNER MONGOLIA M GRASS ECOLOGY & ENVIROMENT GRP CO LTD
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  • Abstract
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  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In recent years, with the continuous expansion of mining of mineral resources, considerable negative impacts have been exerted on the ecology and environment of grassland areas, such as the decline in the quality and yield of grassland pastures, the loss of plant community biodiversity, the decline of groundwater levels, soil and vegetation Changes in structural composition, soil erosion, and frequent sandstorms have led to the deterioration of grassland ecology and seriously affected the normal performance of grassland ecosystem service functions.

Method used

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  • Method for restoring vegetation and ecology of opencast coal mine dump in steppe area
  • Method for restoring vegetation and ecology of opencast coal mine dump in steppe area
  • Method for restoring vegetation and ecology of opencast coal mine dump in steppe area

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Embodiment 1

[0053] This embodiment provides a method for vegetation restoration of an open-pit coal mine dump in a grassland area, including:

[0054] According to the thickness of the top layer of soil, peel off the layer of soil and store it separately.

[0055] Cleaning and crushing of rolling stones, reinforcement and leveling of the surface, and slope elimination treatment are carried out on the slope and flat plate of the external dump site, so that the same slope, the same side slope and the same flat plate can achieve visual consistency. Surface reinforcement, leveling and slope elimination treatment shall be carried out for the side slope and flat plate of the inner dump site.

[0056] Dig drainage ditches in the dump. The water collection ditch of the drainage ditch is excavated along the toe line of the slope, the center line is 2.5m away from the toe line of the slope, and the width is 1m. Excavate every 5 meters in the direction of extension, with an interval of 1.5m, and t...

Embodiment 2

[0061] This embodiment provides a method for restoring vegetation in grassland open-pit coal mine dumps, and the difference from Embodiment 1 mainly lies in:

[0062] The dump site in the present embodiment is in the typical grassland, and the top layer of soil cover thickness exceeds 15cm slope planting, and by quantity percentage, the perennial herb is 50%, the one and two-year herbaceous plant is 30% and shrub, semi-shrub is 20% %; when planted in a flat plate, the perennial herb is 60%, the annual and biennial herb is 20%, and the shrub and semi-shrub are 20%.

Embodiment 3

[0064] This embodiment provides a method for restoring vegetation in grassland open-pit coal mine dumps, and the difference from Embodiment 1 mainly lies in:

[0065] In the desert grassland and steppe desert in the present embodiment, the top layer of soil covering thickness surpasses 15cm side slope planting, by quantity percentage, when side slope planting, one and two-year herbaceous plants are 40%, shrubs, semi-shrubs are 40% and Perennial herbs are 20%; when planted flat, one or two-year herbaceous plants are 30%, shrubs and semi-shrubs are 40% and perennial herbaceous plants are 30%.

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Abstract

The invention provides a method for restoring the vegetation and ecology of an opencast coal mine dump in a steppe area and relates to the technical field of grassland restoration. The method includes: storing top soil; arranging the mine dump; covering soil, to be more specific, covering the surface layer of the mine dump with the stored top soil after the mine dump arranging; planting plants, tobe more specific, sowing different types of seeds into the mine dump in a mixed manner, wherein mechanical or manual sowing is adopted on the slope of the mine dump, and mechanical sowing is adoptedon the flat part of the mine dump; performing management after the plant planting. By the method, the vegetation of the mine dump can be restored, and the ecological functions of the coal dump can berestored.

Description

technical field [0001] The invention relates to the technical field of grassland restoration, and in particular to a vegetation restoration method and an ecological restoration method of an open-pit coal mine dump in a grassland area. Background technique [0002] The mining industry plays an important role in China's national economy. With the rapid development of my country's economy and the increasing demand for mineral resources, the development and utilization of coal resources have caused a series of ecological and environmental problems. In recent years, with the continuous expansion of the mining of mineral resources, considerable negative impacts have been exerted on the ecology and environment of grassland areas, such as the decline in the quality and yield of grassland pastures, the loss of plant community biodiversity, the decline of groundwater levels, soil and vegetation Changes in structural composition, soil erosion, and frequent sandstorms have led to the de...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01B79/02A01G20/00A01G22/15A01G17/00
CPCA01B79/02A01G17/005A01G20/00A01G22/15
Inventor 王明玖邢旗陈翔陈国清成格尔闫晓红刘亚玲王瑞峰张健
Owner INNER MONGOLIA M GRASS ECOLOGY & ENVIROMENT GRP CO LTD
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