Research And Evalution On Plant Landscape Of Purple Mountain Greenway In Nanjing

The plant landscape of Purple Mountain greenway in Nanjing is abundant and diverse.In general,be summarized as "point,line and surface" three kinds of landscape types."Point" includes sights in greenway,parks,plazas and greenway entrance nodes,etc.;"Line" means ribbon green space within a certain range in Purple Mountain greenway and its surrounding;"Surface" refers to the formatted combination of large-scale landscape system of the Purple Mountain and city greenways.The "Line"(the Purple Mountain greenway)is a key concatenation of all the "point" and "face".In this paper,we study the Purple Mountain greenway.Using phytocoenology,landscape architecture,environmental and landscape evaluation behavioral theories and methods,investigate relatively stable 28 typical plant communities on the Purple Mountain greenway,and record plant species,number features and growth,and choose 14 typical plots were drawn plan.Analysis configuration mode of Purple Mountain greenway plant landscape,the number of composition and community characteristics.Then from the perspective of ornamental characteristics,for color,smell and different seasonal succession,analyse the ornamental characteristics of Purple Mountain greenway plant landscape.Then evaluate beauty plant landscape of Purple Mountain greenway by the beauty of the evaluation(SBE).Finally,on this basis,we propose plant landscape optimization strategy of Purple Mountain greenway.The contents and conclusions are include the following aspects:1.Through the field survey and statistics of 28 plots,we can see many types of landscape plants are canopy closure type and garden type.Plant cultivation mode are natural style planting mostly;plant community is balanced,evergreen plants and deciduous plants planted with each other;plots mostly grass bushes and trees complex combination of plant configuration mode,structured,rich and changeful in the Spatial Structure.2.Through the research plots,in summary,the total of plant species composition of Purple Mountain greenway includes 60 families 117 genera 157 kinds,which focused on used more often families Rosaceae,Oleaceae,Magnoliaceae,Lilium,Caprifoliaceae,Leguminosae,Aquifoliaceae Leguminosae,etc.Then calculate Relative Abundance,Relative Frequency,Relative Dominance of the various arbor appeared and Relative Frequency and Relatively Cover-degree of shrubs appeared,finally come to the conclusion that the value of importance of arbor,shrubs appeared in Purple Mountain greenway.Arbor layer,the top five Importance Value are:crape myrtle Cedars,Acer palmatum,camphor,Prunus cerasifera.Shrub layer she top five Importance Value are:osmanthus,Photinia fraseri,Loropetalum,Aucuba,Rhododendron.3.As a respect of the color characteristics,olfactory characteristics,seasonal variation characteristics of the plant landscape in three different areas to discuss the characteristics of ornamental garden plants in significant node of Purple Mountain greenway.It is a key of the landscape to create a abundant plant for a reasonable mix of different ornamental characteristic plants.4.Based on full investigation of the above the plant landscape in Purple Mountain greenway,we select 20 plots as a scenic beauty of the evaluation.By comparing the value of the plots SBE research and analysis of the different scores plots.Optimized SBE calculation method,analysis of factors affecting the beauty of the landscape.And finally propose optimization recommendations.In this paper,we study and evaluate the plant landscape in Purple Mountain greenway.As the same as proposing that the optimization and upgrading of plant landscape strategies of Purple Mountain greenway,it provide a reference for the important node plant landscape of future city greenway of Nanjing.