Method for recovering vegetation on strong-acid tailing waste land without soil

A technology for vegetation restoration and abandoned land, applied in the field of strong acid tailings abandoned land without soil covering vegetation restoration, heavy metal mines, can solve the problems of high cost, high cost, secondary ecological damage, etc., to reduce treatment costs and later management investment Less, improve the effect of physical structure

Active Publication Date: 2015-05-20
CHINA NERIN ENG
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Problems solved by technology

[0016] The technical problem to be solved by the present invention is that the method of covering the surface with clay with a thickness ranging from 30 to 60 cm for vegetation in the current domestic treatment of strong acid-polluted tailings wastelands is expensive, expensive, and easy to use. To solve the problem of secondary ecological damage, provide a method for direct vegetation restoration of strongly acidic tailings waste land without covering soil

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  • Method for recovering vegetation on strong-acid tailing waste land without soil
  • Method for recovering vegetation on strong-acid tailing waste land without soil

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Embodiment Construction

[0046] In order to explore the feasibility of unplanted soil vegetation restoration technology for strongly acidic tailings, entrusted by a copper mine in Jiangxi, we conducted a research on the ecological restoration of unplanted soil vegetation for a tailings pond, and explored the reasonable soil suitable for tailings wasteland in southern China Improvement mode and plant matching planting mode.

[0047] The surface of the tailings wasteland is flat, the surface is powdery white sand, and the lower layer is dense and cohesive, and the compaction phenomenon is very serious; there is no plant growth in the entire tailings wasteland area, the surface temperature is high, water is short, and the soil water retention is poor; the soil layer is soft and human Deep traces can be left when trampled on, which is easy to raise dust and cause serious water and soil erosion.

[0048]In view of the situation of abandoned mine tailings, we conducted on-site investigation, sampling and an...

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Abstract

The invention discloses a method for recovering vegetation on a strong-acid tailing waste land without soil. The method is characterized by comprising the following steps: A. performing early-stage preparations, and draining off water; B. changing the pH value of the land; C. culturing the fertility of the tailing waste land; D. screening and culturing plant varieties; and F. managing transplanted seedlings. The method has the advantages that by adopting the method for recovering the vegetation without soil, disturbance to the tailing land is reduced, and the purposes that water can be drained off, the influence of acid water to the vegetation can be alleviated, the heavy metals can be stabilized, and the living environment of plants is improved are achieved. In addition, according to the method, the cost is low, the effect taking is rapid, the effect is good and the operability is high.

Description

technical field [0001] The invention relates to a method for restoring vegetation to tailings abandoned land, especially to heavy metal mines, such as: copper mines, lead-zinc mines, gold mines, pyrite mines and other mine tailing waste lands that have strong Due to the extreme characteristics of acidity, heavy metal pollution, and extremely low nutrients, vegetation cannot recover naturally. Specifically, it is a method for restoring vegetation in the waste land of strongly acidic tailings without soil covering. Background technique [0002] Because the tailings produced by mine dressing are a special "soil" formed by a series of processed ore slag accumulation, its physical and chemical properties are quite different from the normal "soil" that plants rely on for survival, which is extremely unfavorable for vegetation restoration. The tailing ponds of heavy metal mines generally have the characteristics of strong acid pollution, heavy metal pollution, extremely low nu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B09C1/00B09C1/08B09C1/10A01G1/00A01B79/00
Inventor 曾宪坤袁永强曹学新胡虎刘晓峰
Owner CHINA NERIN ENG
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