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Ecological restoration method of waste dump vegetation

A technology of ecological restoration and dump site, which is applied in the field of ecological restoration of dump site vegetation, can solve the problems of ecological environment damage and difficulty in recovery in mining areas, and achieve the effects of improving the ecological environment, reducing the amount of use, and increasing the emergence rate

Inactive Publication Date: 2012-05-02
NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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Problems solved by technology

[0007] The invention aims at the problem that the ecological environment of the existing mining area is severely damaged and difficult to restore, and provides an ecological restoration method for the vegetation in the dump site that saves soil and reduces the cost of ecological restoration

Method used

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Embodiment Construction

[0024] The present invention will be further described below in conjunction with embodiment.

[0025] The ecological recovery method of this dump site vegetation provided by the present invention comprises two aspects of the leveling of the dump site and the sowing of vegetation, and its concrete steps are,

[0026] (1) Leveling of the site:

[0027] a. Use tailings sand to fill the gravel voids on the slope and plane of the dump site, filling to a height of 5-15cm for the exposed part of the gravel;

[0028] b. Cover the gravel with the mountain bark soil stripped during the mining process until the gravel is completely covered, the thickness of the covering soil is 20-30cm, and the optimum thickness of the covering soil is 25cm;

[0029] (2) Planting of vegetation:

[0030] a. Water the site until the mountain soil on the surface of the site is completely soaked;

[0031] b. Plant different vegetation in the site: plant herbaceous plants alfalfa, white clover and sedum se...

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Abstract

An ecological restoration method of waste dump vegetation is provided, comprising the steps of leveling waste dump and sowing vegetation, wherein the specific steps are as follows: using tailings sands to fill gaps of crushed stones on the slope and plane of the waste dump; using mountain surface soil to cover the crushed stones till that the crushed stones are covered completely; irrigating the waste dump till that the mountain surface soil on surface of the waste dump is wet completely; sowing herbs on the slope of the waste dump; planting seabuckthorn in the middle of the slope; planting Robinia pseudoacacia seedlings on the lower part of the slope; planting cotton climbing plants at the root of the slope; planting Robinia pseudoacacia on the plane; and normally managing the vegetationon the other positions. The invention solves the problem that lots of the tailings are stacked, reduce usage amount of the soil and reduce engineering cost; different plants are planted on different positions of the slope of the waste dump; due to the optimal distribution method, the germination rate of the vegetation and survival rate of the seedlings are improved; the restoration effect of the waste dump vegetation is improved effectively and the ecological environment in the mine area is improved.

Description

technical field [0001] The invention relates to an ecological recovery method for vegetation in a dump site, belonging to the field of ecological recovery in mining areas. Background technique [0002] A waste rock dump is a dumping site for waste left over from mining development. It is composed of hard and compacted stones, sand and other substrates. Generally, the slope ratio of the waste rock dump is 1:1.3, and the width of the table is about 2.0m. According to the dump site The stacking height can generally be divided into 3-4 steps, and the vertical height of each step is about 20m. Dumps not only occupy a large amount of land and farmland, but also destroy plants and ecological landscapes. Due to mining activities in some mining areas, a large amount of land and farmland have been occupied for a long time, resulting in reduced or no harvest in farmland, and soil erosion and desertification in some mining areas are serious. [0003] At present, my country's main mini...

Claims

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Application Information

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IPC IPC(8): A01G1/00
Inventor 李富平张俊英许永利韩冬芸
Owner NORTH CHINA UNIVERSITY OF SCIENCE AND TECHNOLOGY
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