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Plant cover ecological recovery method for mine spoil area of south China

An ecological restoration, South China technology, applied in the field of vegetation ecological restoration in the mine waste slag field in South China, can solve problems such as poor effect, and achieve the effect of excellent effect, low cost and remarkable effect.

Inactive Publication Date: 2008-09-24
SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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AI Technical Summary

Problems solved by technology

Legumes have the potential of "conservation plants" because they can improve soil nitrogen conditions and have shading effects. In desert and Mediterranean semi-arid habitats, legumes can significantly improve the survival rate and growth rate of target plants, but conservation plants and Does not work well when the target plants are all leguminous species

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0009] Implementation process of vegetation restoration in Maoming oil shale waste dump:

[0010] There is almost no soil in the Maoming oil shale waste dump, and most of them are only discarded oil refinery waste rock residues of different sizes, which do not retain water or fertilizer, and do not have the basic conditions necessary for the growth of arbor plants. The native tree species cannot settle and survive at all. There are still only a few kinds of shrubs and herbs growing in this year, and the land is almost bare. Carry out vegetation restoration by the inventive method, on the waste residue field, distribute and dig pits (the interval between each pit is to have enough space suitable for plant propagation and growth as the criterion), and the size of each pit is not less than 50cm * 50cm * 50cm, fill the pits with loess, and then plant one or two conservation plants of Acacia macrophylla in each of the filled pits, and then plant the target plants of native lotus, n...

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Abstract

The invention relates to an ecological recovery method for vegetative cover at the mine spoil area in southern China, and the technical proposal thereof is as follows: first, the mine waste residue substrate is stationed and dug with pits, each pit is not less than 50cm *50cm*50cm, the pit is filled with soil for planting inside, the soil for planting is loess or other soil, then nursing plants, namely, one to two large leaf acacias are planted, after the large leaf acacias survive for 3 to 5 months, indigenousspecies lotus tree, psychotria, huajillo, or red clover are planted under the large leaf acacias to be used as the objective plant species. After the nursing system and the nursing plants-the objective plant species pair are established, the curing is only needed for twice to three times in early time, and finally the indigenousspecies all can be directly settled on the mine spoil area.

Description

technical field [0001] The invention relates to the restoration of vegetation ecology in bare areas, in particular to the technology of restoration of vegetation ecology in mine waste dumps in South China. Background technique [0002] Conservation plants are species that can use their canopy to assist the growth and development of other target species. Conservation plants mainly provide a better microenvironment for seed germination or seedling growth of the target species, and make the target plant species successfully colonize through the positive effect between plant species. In recent years, the international restoration ecology community has begun to apply conservation plant technology to vegetation restoration and has achieved some results. Conservation plants play a key role in restoring the identity and function of native ecosystems, and are also thought to be drivers of succession in some habitats, especially disturbed ones. The choice of conservation plants dete...

Claims

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Application Information

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IPC IPC(8): A01G1/00A01G23/04
Inventor 任海刘世忠刘楠杨龙王俊
Owner SOUTH CHINA BOTANICAL GARDEN CHINESE ACADEMY OF SCI
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