Abstract:According to the climate characteristics and the ecological environment in high-cold and high-altitude area of the West Sichuan Province in China,the local vegetation configuration pattern in the ecological slope protection has been proposed. Through a series of indoor and outdoor experiments,a new-type ecological base material of JYC is developed successfully. By indoor mixture ratio orthogonal test,the components of ecological material and its proportion have been studied,especially the coupling relation between its various characters and plant growth is analyzed. The in-situ experiment of ecological slope protection in more than three years has shown that the JYC has good performance of cohesion,and the ecological engineering structure composed of the base material, anchors,wire netting and plant roots makes the base material and the shallow layer of steep rock slope stable. Through the repeated rainfall erosion and the severe cold weather,it is proven that the JYC is able to bear and resist drought,freezing and corrosion. And the long-term spot sampling tests show that the new-type ecological base material of JYC contains rich nutrient content,the total nitrogen of JYC is more than 0.2%,effective phosphorus more than 20 mg/kg,effective potassium more than 200 mg/kg,and organism more than 5%,which can offer the nutrient for more than 10 years to the plant growth. The slope protection technology of ecological base material of JYC is more suitable for environmental protection and economical benefit than those of shotcrete-bolt support and grass planting by spraying concrete. The method of ecological base material slope protection embedded in macromolecule materials and magnetic manure is the development direction of slope vegetation protection technology for steep rock slope in the high cold and high altitude area.