Investigation And Evaluation On The Vertical Planting Landscape Of Residential Green Space In Nanjing

At present,issues of population,resources and environment have become increasingly prominent in the urbanization process.Vertical greening,due to its outstanding in ecology,economic,artistic and so on,is expanded strongly in the case of urban land resources nervous.The plant landscapes of vertical greening are common inroads,squares,parks and other open spaces now.However,the development of vertical greening in residential green space is later and slower.Under the background of economizing landscape and livable city construction,the paper is started with vertical greening plant landscapes of the residential area green space,through study and evaluation to provide the references for vertical greening construction in residential area,will help to improve utilization efficiency of residential green space and ecological environment.Taking Nanjing city as an example,the paper selects 8 residential areas built before 2005 and 8 residential areas built after 2005 as examples.Through survey and evaluation analysis,several opinions are put forward for the problems in the construction of vertical greening in residential area of Nanjing.The results of the study are as follows:1?About the application type,there are corridor greening,fence greening,wall greening,windowsill greening,garage greening,roof greening,slope greening,rockery stone greening,mosaiculture common in the vertical greening in residential area.2?About the plant species,there are 211 species used in the vertical greening of residential area,including 26 arbor,belong to 19 families,24 genera;77 shrub,belong to 41 families,60 genera;30 vines,belong to 16 families,25 genera;70 herb,belong to 31 families,66 genera;bamboo plants,all belong to gramineae,belong to 4 genera.3?About the frequency of plant use,Podocarpus macrophyllus and Cerasus yedoensis are most used in arbor;Jasminum mesnyi is used frequently,it's frequency is 17;Wsteria sinensis is often seen in corridor greening,Parthenocissus tricuspidata and Parthenocissus thomsoni play an important part in wall greening,Epipremnum aureum is used frequently in windowsill greening;the herb is represented by Luffa cylindrica;Bambusa multiplex(Lour.)Raeusch.ex Schult is often used for slope protection or retaining wall greening.4?The Plants ornamental characteristics,used in the vertical greening,are given priority to with foliage,flower,fruit less.Plants ornamental period mainly concentrate in the summer and fall,plants can be appreciated less in the winter.5?First,the evaluation model on plant landscape of vertical greening in residential green space in Nanjing is built by using the method of AHP-Fuzzy synthesis,then experts are invited to score on it.In the end,the results are as follows:in theaspect of comprehensive score,garage greening>roof greening>corridor greening>fence greening>wall greening>windowsill greening.Finally,construction and optimization of suggestions have been proposed by research on quantitative data analysis and combining with concrete problems.