1. technical name

New polymer ecological slope protection technology.
2. scope of application
Ecological restoration of geological environment fragile areas includes ecological restoration such as geological disaster bodies, engineering construction wounds, desertification and rocky desertification.
3. technical content
3.1 Technical principles and content
Based on theories such as ecology, systematics and engineering, a multi-means combination of "engineering structure-ecological materials-biotechnology" is adopted to achieve the restoration or reconstruction of damaged ecosystems. This technology consists of the following aspects: ecological restoration materials in geological environment fragile areas, vegetation layer reconstruction technology in restoration areas, ecological restoration construction equipment and equipment for high-steep project wounds, screening and breeding of native plants, and intelligent management and protection of ecological restoration projects. The apparent viscosity of the ecological reinforcement material is 16MPa·s~ 17MPa·s, and the pH is 7.0 ~ 7.5.

3.2 main innovations

(1) A series of ecological restoration materials have been developed for soil crust fixation, soil maturation, water retention and evaporation reduction in ecologically fragile areas, solving the technical problem of soil stabilization and water and fertilizer maintenance.
(2) The ecological restoration process technology of "structural reinforcement-ecological reinforcement-matrix improvement-community construction" has been established, which has solved the technical problem of ecological restoration of steep slopes in areas with fragile geological environments.
4. Pollution control or environmental restoration effects
The materials used are all green and environmentally friendly products. The new soil reinforcement materials can also ensure the long-term stable survival of vegetation under harsh environmental conditions such as alpine, freeze-thaw, etc. The trace element and heavy metal content of this material does not exceed the requirements of national standards. In the early stage of restoration, the vegetation coverage rate can be restored to more than 80%, and in the later stage, self-maintenance and long-term effective slope fixation can be gradually achieved.
5. Technology demonstration

This technology has been used in more than 20 projects at different altitudes, including the slope ecological restoration project of Huangnan Prefecture, Qinghai (altitude of 2755 meters), the ecological restoration project of Muli Coal Mine in Qinghai (altitude of 3825 meters), and the ecological restoration project of Mozhu Gongka Julong Kuangqu (altitude of 4200 meters). Demonstration and application in restoration projects of ecologically fragile areas have achieved good demonstration results.

The project implements greening and restoration works on 89 geological disaster hidden danger points in Jiuzhaigou Scenic Area, 64 retaining wall facades and surrounding exposed slopes of 24 treatment projects within the visible range, with a total area of 62127m2. In response to the ecological restoration problem of the "8·8" earthquake in Jiuzhaigou, the joint engineering-material-biological multi-means restoration method was used to reconstruct the soil of the vegetation layer, and combined with the screening and breeding of indigenous plants in Jiuzhaigou, achieving the control supply of soil structure strength and water and nutrients for plant growth, solving the problems of long-term restoration of steep geological wounds and ecological management of geological disasters. Promote the recovery and positive succession of damaged ecosystems with good results.
6. investment estimation
Take the greening, beautification and restoration project of 89 geological disaster hidden danger points in Jiuzhaigou Scenic Area of the Jiuzhaigou National Nature Reserve Administration Bureau as an example, with a total investment of 66.05 million yuan.
7. Prospects for transformation and promotion of technological achievements
This technology can significantly improve geological environment safety and ecological environment quality, and has the advantages of convenient construction, economic, environmental protection and sustainable development. After this technology has been applied to projects such as the Tianshan Highway Slope in Xinjiang, the Lhasa River Valley Slope in Xizang, steep wounds in the Jiuzhaigou earthquake-damaged area, and wound repair in the Yajiang Cascade Hydropower Development and Construction, the ecological restoration effect is good and the promotion prospects are broad.