Method for rebuilding gangue dump close-to-nature ecological system

A technology for ecosystems and gangue hills, applied in the field of reconstruction of waste rock near-natural ecosystems, can solve problems such as the reconstruction of undiscovered waste rock near-natural ecosystems, and achieve high species richness and high biodiversity

Active Publication Date: 2014-03-05
山西绿巨人环境科技有限公司
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Problems solved by technology

However, the above near-natural treatment has not yet been used in the field of waste rock ecological restoration.
[0006] In a further search, it was found that the literature reports identical or similar to the subject of the present invention were respectively about ecological reconstruction and forestry, rivers, and soil erosion near natural governance aspects of gangue hills with vegetation restoration as the main content. Reports on the Reconstruction of Natural Ecosystems

Method used

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  • Method for rebuilding gangue dump close-to-nature ecological system
  • Method for rebuilding gangue dump close-to-nature ecological system

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Experimental program
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Embodiment 1

[0029]This embodiment 1 is implemented under the following conditions of implementation and technical requirements:

[0030] 1. Reconstruction of a near-natural ecosystem in the gangue hill of the Malan Mine Coal Preparation Plant of Shanxi Xishan Coal Electricity Co., Ltd.

[0031] 2. Through on-the-spot investigation, it is known that the plant species suitable for this site include Chinese pine, Ailanthus sinensis, black locust, mountain peach, sumac, apricot, caragana, elm, amorpha, saponins, seabuckthorn, two-colored sage, vitex, sheep Chai, Er Yuelan, Satawan, cosmos, black chrysanthemum, alfalfa, ryegrass and tall wool, etc.

[0032] Vegetation restoration using remote spray planting vegetation restoration technology is also an effective means of soil improvement on mountain slopes. By adding soil organic fertilizers, etc., the characteristics of the soil surface can be changed to provide an environment suitable for plant growth. It can quickly green the mountain slope...

Embodiment 2

[0061] This embodiment 2 is implemented under the following conditions of implementation and technical requirements:

[0062] 1. Reconstruction of a near-natural ecosystem at the Gangue Mine of the Fenxi Mining Bureau in Jiexiu, Shanxi Province.

[0063] 2. Soil improvement: including physical improvement, chemical improvement and biological improvement. By adding improvement materials such as peat soil, wood fiber, organic fertilizer, water-retaining agent, and adhesive to the loess, the soil is matured, and the goal is to form a soil structure close to the natural state. After slope cutting and shaping, cover 200mm-300mm of foreign soil, using mechanical (excavator, loader) and manual cooperation (slope manual finishing). Bio-improvement is to improve the physical and chemical properties of the surface soil of coal gangue hills by using nitrogen-fixing plants (such as sage), green manure crops (such as buckwheat), nitrogen-fixing microorganisms (such as alfalfa rhizobium), ...

Embodiment 3

[0069] 1. In Example 3, the reconstruction of a near-natural ecosystem was carried out in the gangue hill of the Tunlan Mine of Xishan Coal and Electric Power Co., Ltd., Shanxi.

[0070] 2. In the first stage, the soil structure and properties are firstly improved. The physical improvement measures include improving the topography of the mountain and covering with foreign soil. The soil and substrate are mixed and directly covered on the surface of the slope with a covering thickness of 10cm. This method can quickly improve the structure and properties of the surface soil of the mountain and meet the requirements of plant growth. , will achieve good results. Chemical improvement is to apply fertilizers such as N, P and K to the gangue to quickly change the nutrient status of the gangue to facilitate plant growth. Bioimprovement is a method of improving the physical and chemical properties of the surface soil of gangue dumps by using nitrogen-fixing plants, green manure crops,...

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Abstract

The invention relates to a method for rebuilding a gangue dump close-to-nature ecological system and belongs to the filed of ecological restoration. The method includes three stages: the first stage lasting for 3-5 months includes: fast rebuilding an ecological system mainly containing herbaceous plants to allow the earth surface vegetation coverage to be more than 90%; the second stage lasting for 3-5 years includes: accelerating the conversion of the ecological system mainly containing herbaceous plants into the ecological system mainly containing shrubs through artificial interference; the third stage lasting 3-5 years includes: totally depending on natural succession to allow the rebuilt ecological system to be in good circulation, form a complete food chain as predators occur, and enter the self-updating state. The method is mainly applicable to ecological restoration after coal gangue dump treatment and has the advantages that the plant varieties are reasonably configured during plant restoration, animal and artificial actions are introduced, and the systematic gangue dump close-to-nature ecological system rebuilding is achieved.

Description

technical field [0001] The invention relates to a reconstruction method for gangue hills near natural ecosystems, which belongs to the field of ecological restoration. Background technique [0002] Coal gangue is black-gray hard rock associated with coal formation or associated with coal seams, accounting for more than 15% of raw coal output, and is also a major source of solid waste in my country. Coal gangue is still piled up in the gangue field. Due to spontaneous combustion, weathering, leaching, etc., gangue dumps piled up in the open air have brought great environmental pollution to the surrounding atmosphere, water, organisms, and soil, and the ecological environment has been severely damaged. important task. As a damaged ecosystem, its recovery measures are mainly based on the theory of ecological succession, and the main goal is the rapid recovery and benign succession of vegetation. However, in actual operation, the main aspects that everyone pays attention to ar...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A01G1/00A01B79/02A01K67/00
Inventor 宫有寿王晓军张红梅傲雪温美佳申彦舟
Owner 山西绿巨人环境科技有限公司
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