Method for vegetation restoration at soilless steep slope rock dumping field

A technology for vegetation restoration and rock drainage, applied in botany equipment and methods, excavation, plant cultivation, etc., can solve problems such as water and soil loss in rock drainage fields, difficulties in natural ecological restoration of vegetation, etc., achieve root system development, solve soil erosion, The effect of ease of transport

Inactive Publication Date: 2015-02-11
SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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Problems solved by technology

In addition, due to serious water and soil loss in the rock drainage field, it is difficult to restore the natural ecological vegetation, which is the difficulty and focus of environmental governance in mining areas.

Method used

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  • Method for vegetation restoration at soilless steep slope rock dumping field

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Embodiment 1

[0019] The method for vegetation restoration of soilless steep slope rock drainage field comprises the following steps:

[0020] Build a berm 1.4±0.5m above the ground at the edge of the slope foot of the steep slope rock drainage field. The berm is in the shape of a trapezoid. The upright face faces the slope, and the slope face faces away from the slope. , the lower width is 1.0±0.3m, the underground part of the berm is 0.6m high, and a plurality of discharge holes are set on the berm; The center distance between them is 2.0m, and the cutting aperture is 20cm*30cm;

[0021] The berm is built or poured by mixing large rocks or small grains of ore with cement.

[0022] 2) Fill the guest soil at the inner corner of the embankment with a depth of 40-50cm, then use a wicker basket to fill the pit with a wicker basket on the side slope, and add a large-grained water-retaining agent with a particle size of 0.5mm-3mm. Finally, occupy the pit with wicker baskets on the side slope o...

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Abstract

The invention relates to the field of ecological restoration of vegetation at a mine and a mine rock dumping field, in particular to a method for vegetation restoration at a soilless steep slope rock dumping field. The method specifically comprises the following steps: building a reinforcing dam which is 1.4+/-0.5 m higher than the ground at the edge of a slope toe of the steep slope rock dumping field and forming a plurality of drainage holes in the reinforcing dam, wherein the drainage holes are formed in the part of the reinforcing dam which is 50+/-10 cm higher than the ground, the center distance between every two drainage holes is 2.0 m, and the cut aperture is 20 cm*30 cm; filling soil removed from some other places at the corner of the inner side of the reinforcing dam, then filling pits with wicker baskets at the slope of a belt region and then performing staged vegetation restoration of sequential grass and tree planting, wherein the soil removed from some other places is formed by mixing maize straw crushing, river mud and pulverized coal according to a volume ratio of 1:2:1. The materials for building the reinforcing dam are local materials, and the occurrence of slope sliding and water and soil loss is solved at low cost; the trees at the slope toe are also nourished by the water and soil retained by the reinforcing dam, so that a long-acting green protective barrier is formed.

Description

technical field [0001] The invention relates to the field of ecological restoration of vegetation in mines and mine rock drainage fields, in particular to a method for vegetation restoration in soilless steep slope rock drainage fields. Background technique [0002] While the development of mineral resources has made great contributions to the national economy and social development, it has also seriously damaged the ecological geological environment and surface vegetation in the mining area, forming a large number of tailings ponds and rock dumps and other destructive sites, occupying A large number of land resources, while affecting the landscape effect, are also prone to dust, soil erosion and other events, polluting the air and water environment, and inducing secondary geological disasters. The rock dump is a place for stacking and stripping waste rocks in open-pit mining. Among all kinds of mine waste, the rock dump accounts for 40%-55% of the open-pit mining land. The...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20A01G1/00
CPCE02D17/20A01G22/00
Inventor 吴家兵关德新
Owner SHENYANG INST OF APPL ECOLOGY CHINESE ACAD OF SCI
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