| In this paper,three greenways(demonstration section)in Nanning are studied;namely,the urban section of NN-01 Greenway,the urban section of Nn-02 Greenway(Jiangbei District section,Jiangnan Section)and the urban section of Nn-03 Greenway,the plant landscape on both sides of Greenway and the environment and facilities landscape of Greenway were investigated and analyzed by sampling survey method,and the analytic hierarchy process and fuzzy comprehensive evaluation method were used,from five aspects such as recreation level,supporting facilities level,landscape level,ecological level,and cultural level,this paper makes a comprehensive evaluation of greenway landscape,and analyzes the characteristics and existing problems of greenway landscape,the purpose of this paper is to provide scientific basis and practical reference for the construction of greenway landscape in Nanning city.The main findings are as follows:1.Survey results of plant landscape of Nanning Greenway(demonstration section):According to the statistics of plant species,there are 417 species of vascular plants in the survey area,belonging to 103 families and 323 genera.It includes 7families,11 genera and 13 species of ferns,4 families,5 genera and 5 species of gymnosperms,and 92 families,307 genera and 399 species of angiosperms.According to the statistics of life forms,there are 91,90,212,18,and 5 species of trees,shrubs,grasses,vines,and bamboos,respectively.The ratio of evergreens to deciduous plants is 2.62:1.According to the source of plant species,there are221 native plants and 196 exotic plants.According to the statistics of ornamental organs,there are 114 species of ornamental plants,189 species of foliage plants,115 species of flowering plants,and 39 species of fruit plants.According to the statistics of plant color,there are 57 kinds of foliage color plants,129 kinds of flower color plants,and 66 kinds of fruit color plants.Aromatic plants are concentrated in Myrtaceae(5 species),Leguminosae(3 species),Rutaceae(3species),and Rosaceae(2 species).2.The survey results of the environment and landscape facilities of the greenway(demonstration section)in Nanning City:The slow road green landscape is rich and distinctive.The rest facilities,sanitation facilities,and signage system of the service facility landscape are relatively complete,meeting practical functions and landscape effects;the lighting facilities of the municipal facility landscape are integrated with the national culture and coordinated with the surrounding environment.The water landscape’s lakes,rivers,and wetlands are rich and diverse,and the landscape space is both aesthetically pleasing and comfortable.The historical monuments landscape includes buildings or relics of 22 key cultural relics protection units;the other architectural buildings landscape includes 7 ungraded buildings or relics of key cultural relics protection units and places with red educational significance.3.Results of landscape assessment of Nanning Greenway(demonstration section):(1)the overall evaluation value of the greenway landscape is 80.403,and the evaluation grade is "Good".The Order of the three greenway scores is: "Good".The Order of the three greenway scores is: NN-02(84.756)> NN-01(81.976)>NN-03(74.477);NN-01 and NN-02 greenways are "good" and NN-03 greenways are "medium".(2)the index system of Greenway landscape evaluation is as follows:ecological level(85.387)> recreational level(81.916)> landscape level(79.732)>supporting facilities level(78.797)> cultural level(76.182)."ecological level" for "excellent",other criteria for the layer are "Good" level.(3)the top five overall evaluation scores of the 25 index layers of the Greenway landscape evaluation index system are "plant species diversity","native plants","plant community stability","vegetation coverage",and "sanitation facilities",the first four are "excellent" and the latter are "Good".The last three places were "landscape effect of supporting facilities","other constructions",and "historical sites",all of which were rated as "medium". |
