关键词: DCA排序, DCA排序, CCA排序, DCCA排序, 草地植被群落, 生态关系

Abstract: Abstract: Investigation of Hunan some speedway and NingDao speedway,the soil, environment, plant growth situation, plant community to detailed analysis,ChangChang high-speed plants 32 species, the ideal configuration mode, growth condition is good, ChangZhang high-speed the most plants 47 species, trees 15, shrubs 20, herb 8, liana four, but green belt doesn't fit, NingDao high-speed reserve native plants 39 species, trees and shrubs each 14, herb 9, liana 2, hope to creative with local characteristics.Reference ChangChang and ChangZhang high-speed’s redeeming Features,Ning Dao speedway using the natural slope plantation, according to different slope types and plant growth conditions, local native species selection, plant, use local materials, followed by the principle of the survival of the fittest, emphasize the diversity of ecological restoration, for the purpose of establishing, fast speed planting design thinking way better.