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A Method for Ecological Restoration of Open-pit Coal Mine Dump in Loess Hilly Area

A technology for open-pit coal mines and dumps, which is applied in the field of soil and vegetation restoration, and can solve the problems of lack of parameter configuration, and the ecosystem of dumps does not cover configuration parameters at the same time.

Active Publication Date: 2021-11-23
CHINA UNIV OF GEOSCIENCES (BEIJING)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Existing restoration and reconstruction schemes for dump site ecosystems do not cover the configuration parameters of soil, topography and vegetation at the same time, or involve the configuration of certain (several) soil factors alone, or deploy vegetation configurations based on regional conditions alone The discussion of the model, or the design of the terrain features, or the configuration method between certain (several) soil factors and vegetation, lacks the parameter configuration of soil, terrain and vegetation in all aspects

Method used

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  • A Method for Ecological Restoration of Open-pit Coal Mine Dump in Loess Hilly Area
  • A Method for Ecological Restoration of Open-pit Coal Mine Dump in Loess Hilly Area
  • A Method for Ecological Restoration of Open-pit Coal Mine Dump in Loess Hilly Area

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0136] 1. Location: South dump of Antaibao Open-pit Coal Mine, Pinglu District, Shuozhou City, Shanxi Province;

[0137] 2. The formation time and reclamation time of the dump site: 1985-1989 (dumping land for reclamation), 1992-1995 (reclamation);

[0138] 3. Mining stage: In the established mining area, the soil and stones overlying the coal seam are first stripped, and temporarily piled up at the site of the dump site; after the overlying soil is stripped off, the coal mining process begins. Wastes such as coal gangue will be generated during the process. During the mining phase, large and small stones are also separated. Mix the stripped soil with discarded stones, coal gangue and other wastes (maintain the natural roll-off angle of the slope at 30-35 degrees). (mixed soil and rock)

[0139] 4. Reclamation stage: After the discarded soil and rocks reach the established boundary, cover the flat plate and slope with soil (average covering soil 1m). The flat plate is compa...

Embodiment 1

[0155] The repair effect comparison of embodiment 1 and comparative example 1

[0156] Effect evaluation criteria: the growth of trees, shrubs and herbs (vegetation density, tree trunk thickness / shrub crown width), and whether the "tree-shrub-grass" vegetation system is complete or not. See Table 1 for the results.

[0157] Table 1 embodiment 1 and the repair effect comparison of comparative example 1

[0158]

[0159]

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Abstract

The invention provides a method for ecological restoration of an open-pit coal mine dump in a loess hilly area, and belongs to the technical field of soil and vegetation restoration. The method of the present invention is applicable to the soil, terrain and vegetation configuration method of ecological restoration of large-scale open-pit coal mine dumps in the loess hilly area, by rationally setting the configuration mode (type, density) of terrain conditions (site, slope direction and slope) and vegetation, The purpose of maintaining the stability of the regional soil structure and vegetation communities has been achieved.

Description

technical field [0001] The invention relates to the technical field of soil and vegetation restoration, in particular to a method for ecological restoration of open-pit coal mine dumps in loess hilly areas. Background technique [0002] Open-pit coal mining in the loess hilly area has formed a large number of dumps, which not only caused great damage to the surface landscape, occupied a large amount of land, but also affected the habitat of animals and plants, posing a serious threat to the local ecological environment. Problems such as regional soil erosion and land degradation are becoming more and more serious. Therefore, the restoration and reconstruction of the dump ecosystem has become the focus of attention in recent years. [0003] Terrain remodeling, soil reconstruction, and vegetation reconstruction are the foundation, core, and guarantee stages of ecosystem restoration and reconstruction in mining areas. The interaction of terrain, soil, and vegetation formed pla...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A01B79/02A01G17/00A01G20/00
CPCA01B79/02A01G17/005A01G20/00
Inventor 王舒菲曹银贵白中科张振佳周伟耿冰瑾王金满赵中秋
Owner CHINA UNIV OF GEOSCIENCES (BEIJING)