如今,公路绿化已从一路一品种、一路一模式,转为根据不同路段、不同环境、不同区域作专门设计,形成了人工造景与自然景观相结合,点、线、面相结合的系统工程。从外形上看,由单纯的种植乔木,转为乔、灌、花、草与绿色小品相结合。从内涵上看,由单纯种树护路,转为向改善环境、美化环境、防洪、旅游以及促进当地经济发展等多功能综合方向发展。科学的绿化将为稳固路基、保护路面、降低噪音、防治污染、保障交通安全和美化环境等方面起着重要作用,但是 Nowadays, the greening of roads has changed from one species to one species, all the way to one mode, to specialized design based on different sections, different environments and different regions, forming a systematic project combining artificial landscape with natural landscape, point, line and surface. From the appearance point of view, from the simple planting of trees, into Joe, irrigation, flowers, grass and green sketch combination. From the connotation point of view, from pure tree planting road, to improve to the environment, landscaping, flood control, tourism and promote local economic development and other multi-functional integrated direction. Scientific greening will play an important role in stabilizing the roadbed, protecting the road surface, reducing noise, preventing pollution, ensuring traffic safety and beautifying the environment, etc. However,