How do foreign countries do in mine ecological environment governance?

In the greenhouse with the structure of the giant space grid, a natural biological community is formed. Eden is built around the plant culture, the integration of high-tech means of construction, with the theme of "people and plants symbiosis and integration", with "plants are indispensable friends of human beings" as the construction concept, with high scientific research, industry and tourism value of plant landscape theme park. Eden itself is a model of energy conservation and environmental protection, realizing the restoration of a natural ecological area in an area that has been polluted and destroyed by industry. -

Ecological restoration of Shouyun Iron mine in Beijing

Basic situation

Located in Jugezhuang Town, Miyun County, Beijing, the project covers an area of 2.5 square kilometers and is divided into six areas, including mining area, dump, tailings reservoir, industrial site, transportation line and living area, among which a large number of exposed slopes are formed in the mining area, dump and tailings reservoir.

Existing problem

1. The high slope of the mining area is steep, seriously weathered, there are pumice stones, and the stability is very poor.

2. Tailings tailings on the slope of tailings pond have high heavy metal content, loose texture and no soil conditions for plant growth.

3. The soil of the dump is poor, and the water and fertilizer retention capacity is poor.

Major technology

1.VRT base plate plastic vegetation restoration technology. It includes planting substrate spraying technology, ecological vegetation blanket technology, ecological vegetation bag technology, ecological grouting technology, vertical rock surface planting trough vegetation restoration technology and soil improvement technology.

2. Ecological alignment allocation technology. Considering plant diversity, seasonality, and native nature, irrigation, grass, flowers, and climbing are combined to create different seasonal landscapes and realize ecological governance close to nature.

Construction technology

1. Ecological restoration in the mining area: vertical slope adopts vegetation restoration technology of planting groove, fissure slope adopts planting substrate spraying and planting seedling greening restoration technology, and slope slope with slope slope greater than 60 degrees adopts anchor fixing, hanging grid net, planting substrate spraying and laying ecological vegetation blanket technology, and slope platform adopts seedling planting and platform blocking technology.

2. Ecological restoration of tailings pond: adopting pavement finishing, soil improvement and laying ecological vegetation blanket technologies.

3. Ecological restoration of the waste dump: the use of planting substrate spraying, ecological grouting technology, to create a plant growth base plate technology.

Repair effect

The control rate of disturbed land in mining area is above 95%, the total control degree of soil and water loss is above 94%, the soil loss control ratio is between 0.4 and 1.3, the slag control rate is above 98%, and the forest and grass vegetation restoration rate is above 98%. At the same time, the forest and grass coverage rate reached more than 31%.