Method for ecological restoration of side slopes of acid waste-rock yard

A technology of ecological restoration and ecological stick, which is applied in the field of ecological restoration of acid waste rock slopes, can solve the problems that vegetation is difficult to survive and grow, and achieve the effect of improving plant growth conditions, obvious effects, long-term significance, and good effects

Active Publication Date: 2011-02-16
BEIJING GENERAL RES INST OF MINING & METALLURGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Establishing vegetation on acidic sites is a challenging problem in itself, and vegetation may not survive or grow poorly under conventional reclamation treatments

Method used

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  • Method for ecological restoration of side slopes of acid waste-rock yard
  • Method for ecological restoration of side slopes of acid waste-rock yard
  • Method for ecological restoration of side slopes of acid waste-rock yard

Examples

Experimental program
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Effect test

Embodiment 1

[0025] According to the method provided by the present invention to a 2000m 2 For ecological restoration of the acid waste rock slope, the following steps shall be carried out in sequence:

[0026] (1) Make soil improvement layer: mix lime, plant loam and adhesive evenly, wherein the amount of lime and plant loam is 1:10 by volume, and the amount of adhesive is calculated according to the unit area to be sprayed , the specific dosage is 10g / m 2 .

[0027] (2) Make the substrate layer: uniformly mix substrate, plant loam, perlite, water-retaining agent, adhesive and organic compound fertilizer, wherein, the consumption of substrate, plant loam and perlite is 2:7 according to the volume ratio: 1. The amount of water retaining agent, adhesive and organic compound fertilizer is calculated according to the unit area to be sprayed, and the specific amount is 10g / m of adhesive 2 , water retaining agent 15g / m 2 And organic compound fertilizer 20g / m 2 .

[0028] (3) Make the seed...

Embodiment 2

[0039] The method provided by the present invention is for a 1500m 2 For the ecological restoration of the slope of the acid waste rock site, the following steps shall be carried out in sequence:

[0040] (1) Make soil improvement layer: mix lime, plant loam and adhesive evenly, wherein the amount of lime and plant loam is 1:15 by volume, and the amount of adhesive is calculated according to the unit area to be sprayed , the specific dosage is 10g / m 2 .

[0041] (2) Make the substrate layer: uniformly mix substrate, plant loam, perlite, water-retaining agent, adhesive and organic compound fertilizer, wherein, the consumption of substrate, plant loam and perlite is 3:6 according to the volume ratio: 1. The amount of water retaining agent, adhesive and organic compound fertilizer is calculated according to the unit area to be sprayed, and the specific amount is 12g / m of adhesive 2 , water retaining agent 18g / m 2 And organic compound fertilizer 15g / m 2 .

[0042] (3) Make t...

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Abstract

The invention discloses a special composite isolation layer for ecological restoration of side slopes of an acid waste-rock yard, comprising a plastic biaxial geogrid, a soil improvement layer and a water discharging plate. The invention further discloses a method for ecological restoration of the side slopes of the acid waste-rock yard, comprising the following steps: arranging the composite isolation layer, an ecological rod, a geogrid mesh, a base material layer and a seed layer on side slopes, leading the plastic biaxial geogrid, the ecological rod, the composite isolation layer, the base material layer and the seed layer to act mutually, effectively improving the growth conditions of plants and leading the growth of the plants to have sufficient water and nutrients. The invention better realizes the ecological restoration and creation of ecological landscapes on the side slopes of the acid waste-rock yard without conditions for plant growth, and simultaneously guarantees the structure and stability of the side slopes, thus achieving the purposes of greening and beautifying the environment, conserving water and soil and inhibiting runoff, also having simple construction technique, easy implementation and high efficiency and being suitable for large-area application.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration of abandoned mine lands, and relates to an ecological restoration method for slopes of acidic waste rock fields. Background technique [0002] The proportion of non-ferrous metals in my country as sulfides in minerals is very large, which is equivalent to about 3 / 4 of the total amount of various minerals. In mineral mining, sulfide ores produce a large amount of exfoliation. Under the condition of open-air stacking, the sulfides with different contents remain in this kind of mine waste, which are easily oxidized by oxygen in the air. When it encounters rainfall and water, it will form strong acidic water and carry a large amount of heavy metal ions. . If it is not properly disposed of, it will become a serious source of harmful pollution in the mining area. In fact, many mines in my country have been troubled by this pollution problem for many years, and the acid pollution is ver...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E02D17/20A01B79/00A01C7/00
Inventor 王琼周连碧辜再元潘斌占幼鸿祝怡斌张冬松
Owner BEIJING GENERAL RES INST OF MINING & METALLURGY
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