The Ecological Restoration Design For Anyang Northwest Highway Slope

Highway slopes are a large number of damaged interfaces due to the construction of highways.As of December 2017,the mileage of highways throughout the country was 131,000 kilometers,and the mileage of highways in Henan Province was 6523 km.According to the analysis of highway remote sensing images and slope survey data,the area of highways in Henan Province was calculated to be about 7416.87 hectares.These slopes form a line across the surface of the earth,cutting the ecological landscape of mountains,water,forests,fields,and lakes,thereby affecting the ecological balance.It is particularly important to establish a stable slope plant community,solid soil slope protection,improve the ecological environment,and restore and enhance the productivity of the damaged interface through the ecological restoration design of the highway slope.In this paper,through the definition of the ecological restoration of highway slopes,the research on ecological restoration of slopes is carried out from three aspects: ecological slope protection projects,selection of slope protection plants and plant community configuration.In view of the existing problems in the ecological restoration of slopes,such as inconsistent engineering measures,improper plant selection,and uncoordinated community allocation,the application of new engineering materials,improvement of engineering technology measures,and The selection of types and the arrangement of plant communities provide an avenue for the rehabilitation of the slope ecological restoration works of the Anyang Northwest Expressway.(1)Application of materials such as soilless hybrid fiber,honeycomb format,and sludge to establish a stable slope habitat;(2)Improve shallow slope ditch collection,planting trough,platform retaining wall and other engineering and technical measures to stabilize the slope structure to prevent soil erosion.(3)Select local plants such as Robinia pseudoacacia,Vitex negundo,and wild jujube to build near-natural plant communities to reduce costs and maintenance intensity.(4)Deploying plant communities dominated by shrubs,supplemented by trees,and full coverage of herbaceous plants to increase the productivity of slope biomass.According to the above restoration approaches,combined with the complex terrain,soil-alkaline,uneven spatial and temporal distribution of rainfall,and semi-humid climate in Anyang,"arched skeleton + six-cornered bricks,planted substrate-type container seedlings,planting tanks and planting pools were combined.,Retaining wall type + planting trough,retaining wall + groove,honeycomb cell room flexible slope protection and plant fiber blanket slope protection" and other ecological slope protection models,and gives the use of plant community space configuration to improve the slope productivity measures.This design aims to provide theoretical and technical support for highway slope ecological construction projects,and provides reference suggestions for the selection and deployment of new-build or reconstructed highway slope restoration vegetation communities and promotion and application of ecological slope protection engineering technology in Henan Province.