Study On Landscape Planting Design Scheme Of The Hengxian Freeway From Qiongzhong To Danzhou

Hainan Province is the southernmost province in China which is a famous international tourist island. Due to special geographical environment in Hainan island, road transportation plays a major role in island's communications transportation. Hainan island is renowned for its flowers blooming throughout the year, long summer without winter, the special climate conditions, rich forest resources and tourist resources, and is well known as the “Oriental Hawaii”. Freeway construction has certain adverse effects on the social environment and natural environment along the highway, so the environment protection in highway construction and landscaping design is particularly important, and is also an essential link. Along with the improvement of people's environmental protection consciousness, aesthetic views and driving comfort requirements, and under the background of the rapid development of national economy and the increase of freeway investment, higher requirements are put forward in freeway landscaping design work.On the basis of analyzing the landscape greening research results at home and abroad, this thesis summarized comprehensively the natural environment related to environmental protection and landscape planting, landscape characteristic, landform, landscape nodes, the historical humane environment, tourism resources distribution along the Hengxian Freeway from Qiongzhong to Danzhou. To deal with the relation among freeway construction, environment protection and landscape greening, and on the basis of ecological construction concept of protecting the environment and resources, and opening a way sustainable development, overall design ideas of landscape greening along the Hengxian Freeway from Qiongzhong to Danzhou were put forward, including the design idea, design goal, design principle, structure and layout of landscape, landscape design, landscape plant design and the protection and reuse of resources. And combined with specific construction conditions and facilities layout along the road, the specific landscape greening design of side slope, road side, central dividing strip, interchange, earth fetching areas, spoil ground, overpass, tunnel face, service area and maintenance work area was put forward. The research provides a solid foundation for the implementation of the item landscape greening projects, and builds this project an extraordinary ecological road, sightseeing road, travelling road, environmental road. The research also provides reference of landscape greening design for other sections of the Hengxian Freeway.