Study On Vegetation Recovery And Protection Of The Slope In Yaan-Luku Highway

Located in the southwest edge of Sichuan Basin to the plateau transition zone, Yaan-Luku Highway is featured with complicated topography and unstable ecology. Line projects construction is detrimental to the human use of the surrounding area. To realize the goal of building a highway with ecological, harmonious and environmental protection, combining the features of the climate with the natural vegetation along the path, this thesis intends to carry out research on vegetation restoration and comprehensive protection method.Firstly, based on the investigation and analysis on the natural plant communities along Yaan-Luku Highway, by dint of the existed methods, the suitable native plant ecological adaptability is summarized and the resource library section established. Four sections are divided along the roadline. In addition, through investigating the vegetation restoration of the project which has been built within the study area, the thesis attempts to find out the results. and the existing problems of the restoration of vegetation construction。Secondly, the author takes into comprehensive considerarion the adaptability, protective performance, landscape performance and economic performance of the slope plants by AHP, constructs judgment matrix to make comprehensive sequencing of the plants in the selection resources, and screens out appropriate plant species for the slope vegetation restoration in each section。Combined with the community characteristic of the natural vegetation and slope characteristics along the path, the thesis elects a mix of herbal plant community, grass-type plant and grass shrub plant community and makes configuration by using the AHP selection results and calculates the amount of herbaceous planting and shrubs in planting density。In terms of the difference of the slope position, slope ratio, slope height, rock type, degree of rock weathering and slope stability along the Yaan-Luku Highway, the author proposes the integrated protection method for the slope, including direct seeding, hanging three-dimensional network of seeding, seeding and anchor within the framework of the skeleton within the hanging wire seeding beam engineering。...