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Vegetation restoration method for manganese mine wastelands

A technology for vegetation restoration and abandoned land, applied in climate change adaptation, machinery for improving soil, forestry, etc., can solve problems such as difficulty in forming forest landscapes, migration of secondary pollution pollutants to other environments, and low economic value, and achieve good results Vegetation restoration effect, good plant growth condition, and the effect of improving the ecological environment

Inactive Publication Date: 2009-12-30
CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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AI Technical Summary

Problems solved by technology

[0003] ① Covering soil: For any type of mine wasteland, the easiest way is to cover the soil, but the cost is relatively high, so it can only be used in areas with relatively good economic conditions and strong awareness of ecological environmental protection
[0005] ③Chemical treatment: Chemical methods are mainly used to adjust the pH value, add nutrients, and remove harmful substances. The cost is relatively high, and it is easy to cause secondary pollution or the migration of pollutants to other environments
[0006] ④Vegetation restoration: It is often to add species or let them recover naturally according to the vegetation succession law of "herb-shrub-arbor". It takes a long time and only a secondary community dominated by herbaceous plants can be formed. Single, difficult to form a forest landscape, low economic value

Method used

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Embodiment Construction

[0012] First, use manganese ore slag and tailings mud to carry out pot test to screen tree species. The formulas of manganese ore slag and tailings mud are: slag (or tailings mud) mixed with 10-20% sand-covered soil; 80-90% slag mixed with 10-20% % tailings mud; 80-90% tailings mud mixed with 10-15% slag, and appropriate amount of compound fertilizer (N+P 2 o 5 +K 2 (O≥25%) or organic fertilizers to supplement nutrient deficiencies and inhibit heavy metal toxicity and other soil matrix improvement technologies, and screened out two kinds of stress-resistant tree species, eucalyptus and duying, for vegetation restoration in abandoned manganese mining areas. Then, use eucalyptus and duying to restore the vegetation of the slag waste land in the manganese mining area; m, ground diameter about 1.5cm) and Duying seedlings (seedling height about 0.5m, ground diameter about 1.0cm), manual digging (0.5m×0.5m×0.5m), put in slag (or tailings mud) 80% mixed with 20% sand-covered soil ...

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Abstract

The invention relates to vegetation ecological restoration technology in a degraded ecosystem, which comprises the following steps: first using manganese ore slag and tailings mud in a certain proportion to perform pot experiment for screening tree seeds, and screening out anti-adversity tree seeds of koelreuteria paniculata, elaeocarpus decipiens, platycladus, palm, euonymus japonicus, evergreen magnolia, pittosporum and the like for vegetation restoration of the manganese mine wastelands; and then utilizing the tree seeds to perform the vegetation restoration of the manganese mine slag wastelands. The experiment shows that the method has high survival rate of the tree seeds and good growing conditions of plants so as to achieve the excellent vegetation restoration effect in manganese mine wastelands. In addition, the method has lower manufacturing cost, quickly forms forest landscape, and achieves excellent effect of the improvement on ecology environment and landscapes.

Description

technical field [0001] The invention relates to a vegetation ecological recovery technology for a degraded ecosystem. Background technique [0002] Abandoned mine land is a typical degraded ecosystem, often with extreme ecological conditions, it is difficult for plants to settle and grow, and it is difficult to restore vegetation. At present, the reclamation measures and technologies for relatively large mining abandoned land mainly include: [0003] ①Covering soil: For any type of mine wasteland, the easiest way is to cover the soil, but the cost is high, so it can only be used in areas with relatively good economic conditions and strong awareness of ecological environmental protection. [0004] ②Physical treatment: In the abandoned mining area where the covering soil treatment measures are not available, physical measures such as "loosening the soil and preparing the soil" are often used to improve the physical structure of the soil. This method is likely to cause water a...

Claims

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Application Information

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IPC IPC(8): A01G23/00A01G23/04A01B77/00
CPCY02A40/22Y02P60/40
Inventor 田大伦闫文德康文星
Owner CENTRAL SOUTH UNIVERSITY OF FORESTRY AND TECHNOLOGY
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