Method of cyclic sustainable vegetation recovery for waste dump of grassland mining area

A technique of vegetation restoration and soil dumping, applied in botany equipment and methods, excavation, horticulture, etc., can solve problems such as failure to fundamentally solve vegetation restoration, lack of possibility of large-scale promotion, stagnation, etc., to increase Rainwater utilization rate and plant survival rate, good ecological adaptability, effect of increasing numbers

Active Publication Date: 2012-07-18
内蒙古蒙矿生态科技有限公司 +1
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AI Technical Summary

Problems solved by technology

These technologies have played a certain role in the vegetation restoration of the dump site to varying degrees, especially in the first year when the measures were implemented, the effect was very good, but the vegetation on the slope gradually degraded in the second and third years, because the maintenance in the first year The measures are good, a large amount of irrigation and watering ensures the water needed by the plants, but the irrigation and other maintenance measures cannot keep

Method used

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  • Method of cyclic sustainable vegetation recovery for waste dump of grassland mining area
  • Method of cyclic sustainable vegetation recovery for waste dump of grassland mining area
  • Method of cyclic sustainable vegetation recovery for waste dump of grassland mining area

Examples

Experimental program
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Effect test

Example Embodiment

[0032] Example 1

[0033] refer to figure 1, Slope top control area 1, plant mustard-type rape 2 in the area; add topsoil 10 in the steep slope control area 3, and have mesh covering material 12 to cover, then plant Caragana microphylla / Satawang 4 and Artemisia grandis 5; After adding gravel subsoil layer 11 in slope management area 6, lay netted covering material 12, then plant mustard type rape 2 in the early stage, plant Caragana microphylla / Satawang 4 and Artemisia grandis 5 in the later stage; After the stone bottom soil layer 11, a net-shaped covering material 12 is laid, and mixed pasture grass 8 is planted; the above-mentioned steep slope control area, the junction of the middle slope control area and the gentle slope control area are provided with a rainwater collection pipe 9; after collecting rainwater, it flows into the sump 13; the sump 13 The rainwater within is used to irrigate the plants in the plant breeding base 14 required for slope surface management in th...

Example Embodiment

[0041] Example 2:

[0042] In 2007, it was practiced in the west dump of Ulantuga Coal Mine in Xilinhot City, Inner Mongolia. First of all, the topsoil and gravel subsoil stripped by mining in the mining area are placed separately. The gravel subsoil is mainly used to accumulate the slope body. After the slope body is accumulated, different treatment areas are delineated according to the different slopes of the slope.

[0043] In this case, the slope was measured on-site by the clinometer, and it was found that most of the slopes were between 25-30 degrees, so the treatment method followed the mode of the middle slope treatment area; while the slope at the foot of the slope was relatively gentle, about 10 degrees, so it was carried out according to the gentle slope treatment mode governance.

[0044] For the slope top treatment area, because the ground is relatively flat and mainly raw soil, mustard-type rape is mainly planted, and the seeding rate is 12 kg / mu, and the row-to...

Example Embodiment

[0055] Example 3:

[0056] In 2008, it was practiced in the south dump of Hongwen Group Open-pit Coal Mine in Xilinhot City, Inner Mongolia. First of all, through the on-site measurement of the slope, it is found that most of the slopes are 35 degrees, which are steep slopes, so the treatment is carried out according to the model of the steep slope control area. Only the slope at the foot of the slope is about 12 degrees, so the slope foot area is carried out according to the model of the gentle slope control area.

[0057] For the steep slope treatment area, first level the slope and fill small gullies, then lay topsoil on the slope with a thickness of 10cm, level the slope after laying, and then lay drainage pipes. The laying method and pipe specifications are the same as those described in Case 1. Afterwards, sow Satawang and Artemisia grandis on the slope, also adopting the mode of planting in alternate strips, row and plant distance 15cm, seeding rate 12 kg / mu (6 kg for e...

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Abstract

The invention discloses a method of cyclic sustainable vegetation recovery for a waste dump of a grassland mining area. Surface soil and subsoil need to be treated respectively in piling of earth and rock in the waste dump, and the subsoil, stone blocks and the like are piled at the foundation position of a slope; the surface soil is piled independently and used at the necessary position on the slope; the slope of the waste dump is divided into a slope top treatment area, an abrupt-slope treatment area, a medium-slope treatment area and a gentle-slope treatment area according to the gradient of the slope; different plants are planted in the treatment areas, and the treatment areas are covered with meshed coverings of different light transmittances; a rainwater collection system is designed in each treatment area to drain, collect and reuse the rainwater on the slope; plant breeding bases are established around the waste dump; the rainwater collected by the rainwater collection systemsis mainly used for irrigating and breeding plants in the bases, and plant seeds for slope treatment are mainly from the breeding bases. By the method, soil can be improved and soil and water loss canbe controlled effectively. The method has bright application prospect and popularization value for semi-arid grassland areas.

Description

technical field [0001] The invention relates to a recycling and sustainable grassland mining area vegetation recovery method, in particular to a semi-arid grassland mining area dump site vegetation recovery method. Background technique [0002] The climate in the semi-arid steppe area is dry, the annual rainfall is less than 400 mm, the vegetation is dominated by herbaceous plants, grassland degradation often occurs, and the ecological environment is fragile. In recent years, with the increasing demand for energy in the country's economic development, mineral mining activities in semi-arid grasslands have become increasingly intense. The mining of minerals has led to a large amount of earth stripping and accumulation, forming a large accumulation body in the mining area. The large-scale soil mounds formed by these dumps are difficult to restore vegetation on the slope. What is particularly difficult is that in the semi-arid grassland area, the rainfall is low and the time d...

Claims

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Application Information

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IPC IPC(8): A01G1/00E02D17/20
Inventor 李胜军陈国清王占义成格尔王明玖赵有富侯佳
Owner 内蒙古蒙矿生态科技有限公司
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