Research On The Road Slope Ecological Protection Technology In Changsha

This survey carried out for the application status of Changsha slope bioengineering protection technology, to fully understand the application technology of road side slope ecological protection of Changsha. Use a square plot according to the purpose of survey, quadrat an area defined according to size of the slope, quadrate was set in the characteristics of slope shape, slope plant species rich in changes of location, the quadrat length is set to10m, the width of the slope size, usually5-20m, the plot size is generally100-200m2. To carry out a detailed site survey about geological environment of the plots, plant cover, growth, and plant configuration.The study showed that main said slope bioengineering protection technology include plant slope protection, geotextile format slope stabilization, frame structure of planting slope protection,3D vegetation net slope protection, variety of slope protection technology and so on, frame structure of planting slope protection forms is the largest share, about55%.The study showed that frame structure of planting slope protection is relatively wide application of Changsha city. The main shape of frame structure of planting slope protection in Changsha city include square, diamond, scaly and so on, combined with trees, shrubs, vines to protect road slope. Frame structure of planting slope protection is more suitable for the humid and rainy climate in Changsha city, for the good resistance to rain erosion ability and the effect of retaining solid slope. The application form is also relatively rich variety of frame structure of planting slope protection in Changsha city, combine with colorful trees and shrubs plants, this greatly enriched the urban landscape of Changsha city, the ecological benefits are also highlighted.In plant selection and configuration, the plant variety of applications is too single, no significantly changed in four seasons, and urban landscape and ornamental is not high; Plant trees, shrubs, vines, ground cover plants and flowers and plants although the match is reasonable, the effect of retaining solid slope, but lack of change in the configuration structure and the ornamental value is not high enough. We should take full advantage of the rich plant resources, scientific selection of suitable species, to ensure the plant biodiversity and landscape, such a vegetation community not only to stable development, and enhancing the ornamental value.By on Changsha road slope ecological protection technology of investigation, and on overall of induction, summarized and analyzed, Changsha road slope ecological protection effect general better, road slope of plant green effect better, generally, the effect of retaining solid slope of the slope protection technology is better, but later in maintenance management, it lacks scientific guidance and unified management in technology of road side slope protection. Earlier stage of slope protection technology works well, but the neglect of maintenance and management, which greatly reduces the slope effect. In future work, we should be combined with practical innovative, committed to research and development of new ecological slope protection technology, establish scientific and reasonable maintenance management and monitoring system, improve the quality of slope protection technology.