Method for recovering ecological environment of gulch-gold mined cut-over land in cold temperate zone

It is a technology of ecological restoration and cold temperate zone, which is applied in the direction of soil preparation, cultivation, agricultural machinery and tools, etc. It can solve the problems of insufficient local financial resources, high pressure, and difficulty in artificial ecological restoration, and achieve rapid restoration of vegetation, improvement of ecological environment, The Effect of Sustainable and Coordinated Development of Ecology and Economic Society

Inactive Publication Date: 2016-01-06
大兴安岭林业集团公司农业林业科学研究院
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0003] Artificial ecological restoration of placer gold mining sites in cold temperate zones is very difficult. There are two main reasons: one is that the existing restoration methods are not suitable for the actual conditions in cold temperate regions, mainly because most of the plant species selected for ecological restoration are exotic species. And most of them are shrubs and herbaceous plants, which are not suitable for the local climate and site conditions, and the ecological restoration effect is not good; secondly, because the investment in the ecological restoration of placer gold mining sites is relatively high, the local financial resources are insufficient, and huge financial resources need to be invested. To carry out ecological restoration under the condition of investment, the local government or enterprises have a heavy burden and great pressure. If there is no economic compensation income, it is difficult to voluntarily carry out ecological restoration projects

Method used

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  • Method for recovering ecological environment of gulch-gold mined cut-over land in cold temperate zone

Examples

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Comparison scheme
Effect test

Embodiment 1

[0051] Example 1 Ecological restoration of a placer gold mining site in Huma, Daxinganling, Heilongjiang

[0052]The alluvial gold mining site is band-shaped, with ridge-like undulations, and the matrix is ​​mainly large gravels, with very few fine particles and soil components, making it difficult for plants to grow. After investigation, the alluvial gold mining site is owned by the local forestry bureau, and the land ownership is clear and undisputed. Naturally recovered vanguard herbaceous plants such as willow orchid, wormwood, lily, pearl plum, and chrysanthemum are only scattered in low-lying areas with better water conditions. There is basically no vegetation and they are unusable (agriculture, forestry, animal husbandry ) of the land, it is difficult to achieve ecological restoration by natural force without artificial improvement.

[0053] The specific operation steps are as follows:

[0054] Step 1. Determine recovery boundaries:

[0055] For the placer gold minin...

Embodiment 2

[0067] Example 2 Ecological restoration of a placer gold mining site in Xinlin, Daxing'anling, Heilongjiang

[0068] The placer gold mining site is in the shape of a belt, and the original topography and landform are seriously damaged. Maosha hillocks and Maosha pits can be seen everywhere, with ridge-like undulations. The matrix is ​​mainly large gravel, with very few fine particles and soil components, making it difficult for plants to grow. After investigation, the alluvial gold mining site was newly formed not long ago, and it is owned by the local Forestry Bureau. The land ownership is clear and undisputed. There is no vegetation on the ruined land, which is unusable land (agriculture, forestry, and animal husbandry). It is difficult to achieve ecological restoration by natural force without artificial improvement. The eligibility of the land is confirmed.

[0069] The specific operation steps are as follows:

[0070] Step 1. Determine recovery boundaries:

[0071] On ...

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Abstract

The invention belongs to the technical field of ecological restoration, and relates to the method for recovering the ecological environment of a gulch-gold mined cut-over land in the cold temperate zone. The method for recovering the ecological environment of a gulch-gold mined cut-over land in the cold temperate zone comprises determining the recovering boundary, preparing soil, digging holes, filing alien earth, planting stocks, and managing after stock plantation. The time is very long and retrogressive succession may happen if a weak ecological environment of a gulch-gold mined cut-over land in the cold temperate zone only naturally recovery, the method for recovering the ecological environment of a gulch-gold mined cut-over land in the cold temperate zone can solve the above problems, vegetation can quickly recover, the ecological environment can be improved, and the survival rate of nursery stocks can reach up to 98%. The method can be used for ecological recovery, or voluntary greenhouse gases emission reduction projects, economic compensation can be obtained via carbon transaction, so the ecological environment and the economic society can in sustainable coordinated development.

Description

technical field [0001] The invention belongs to the technical field of ecological restoration, and in particular relates to an ecological restoration method for placer gold mining traces in a cold temperate zone. Background technique [0002] Placer gold is abundant in cold temperate regions in my country, and the types of gold deposits are mainly riverbed-type placer gold deposits, river beach-type placer gold deposits, valley-type placer gold deposits, and terrace-type placer gold deposits, all of which are distributed in cold temperate zone wetlands. Placer gold mining has made important contributions to the country's economic construction and social development. However, due to the past, only focusing on the economic benefits of placer gold mining, ignoring the damage to the ecological environment and the overall benefits of society have seriously damaged river wetlands, grassy swamp wetlands and irrigation. Cong swamp wetlands and other primitive landforms have formed a...

Claims

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Application Information

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IPC IPC(8): A01G17/00A01B79/02
CPCA01G17/005A01B79/02
Inventor 王立中刘学爽韦昌雷李为海曲晓颖胡林林李慧仁赵厚坤赵希宽刘霞
Owner 大兴安岭林业集团公司农业林业科学研究院
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