Evalution And Optimization Design Of Urban Road Vertical Greening In Nanjing City

In recent years,The continuous development of the city to promote the utilization of vertical greening.As a new green form,vertical greening its less land,green green high characteristic makes it is agreed by urban greening and promotion.As an ancient riverside garden city,the ancient city of Nanjing also pays attention to the city's road greening,vertical greening is also widely applied in road greening.In this paper,through the field research,making a detailed analysis of the plant landscape of urban road vertical greening in Nanjing City,and using the analytic hierarchy process(AHP)to establish the appropriate road vertical greening plant landscape evaluation system,respectively from the function value,ornamental characteristics,ecological factor three aspects of 25 randomly selected plant landscape small plots has carried on the comprehensive evaluation and analysis.Comprehensive judgment on the plant landscape quality of urban road in Nanjing,the main problems existing in the urban road greening plant landscape in Nanjing city were analyzed,and puts forward some suggestions for the improvement of specific optimization,finally,the optimized design of the urban road vertical greening plant landscape in Nanjing was carried out.The contents and conclusions are include the following aspects:1.Through the on-the-spot investigation and statistics for three-dimensional green plant landscape of Nanjing city small 16 Street 90 Road,summary of Nanjing urban road three-dimensional green plant species composition of a total of 82 families,108 genera,48 species,which focused on used more often families Compositae,Liliaceae,Vitaceae,Oleaceae,Rubiaceae,Apocynaceae,Convolvulaceae,Labiatae,etc.2.According to the investigation data,through the main form of Nanjing urban road vertical green landscape plant plots,species composition,frequency of use and ornamental characteristics to carry on the analysis,summarize the characteristics and disadvantages of Nanjing urban road greening plant landscape.3.Based on the full investigation on the plant landscape of Nanjing urban road vertical greening,select 25 small plots as the object of landscape quality evaluation,the use of level analysis method(AHP),from the functions and values of the Nanjing city road greening plant landscape ornamental characteristics and ecological benefit three aspects to establish three-dimensional green plant landscape comprehensive evaluation model,evaluation analysis and discuss the evaluation of urban road vertical greening plant landscape quality.4.Through the study on the same point AHP and the comparative analysis of different scoring small plots,analysis the influence factors of urban road vertical greening plant landscape quality,summarize the problems existing in the urban road greening plant landscape in Nanjing,and then put forward the relevant optimization advice.This article through to the Nanjing city road vertical greening plant landscape research and evaluation,the Nanjing city road vertical greening plant landscape optimization promotion strategy and renovation design,at the same time,also for the Nanjing city road vertical greening plant landscape construction to provide the reference,on the basis of this,the optimized design is carried out.