Study On Plant-Landscape Of Urban Road Green Space Of New Urban Districts In Nanjing

With the development of urbanization and advancement of people's standard of living,people have higher demand for urban environment and urban landscape.The road green space is an important part of urban green space system.Plant-landscape of urban road green space can improve urban environment,share urban landscape and make the city more beautiful. Nanjing is the political core of Jiangsu Province and one of the biggest cities in the East China,with advantaged geographical position. Probing to the existed plant-landscape of green space in Nanjing urban area is very important for the improving of urban environment and urban image of Nanjing.In this paper,taking Hexi New District,Jiangning New District and Xianlin New District as the research objects,plant-landscape of urban road green space had been studied. The main research results are as follows:1. The current status of urban road green space of New Urban Districts in Nanjing was investigated,including the green plant species,the frequency of plants'application and the plants arrangement of roads greenbelts,roads waterfront green space,green land in street and intersection green space.2. The artificial plant communities'characteristics of New Urban Districts in Nanjing was investigated and analyzed.26 plant communities in the roadside green space,8 plant communities in the middle-part belt green space,9 plant communities in the waterfront green space,9 plant communities of green land in street and 10 plant communities in the intersection green space were selected.Their composition of communities,the number of features and community species diversity were analyzed with plant community methods.3. A comprehensive evaluation index system of urban road green space was built from the perspective of the visual quality,eco-efficiency,psychological feeling and economic society service,and the AHP model for evaluating plant-landscape was also built and the comprehensive evaluation index of the 40 sample fields was calculated. According to the results,the grading of plant communities landscape was determined.4. For the particularity of the road,from the "linear" landscape starting,the greening modes in the road vehicle green belt and road-side green space of New Urban Districts were studied on, and they were analyzed with virtual maps and simulation diagrams,then the features of each modes were pointed out.5. Development advices based on the analysis of development advantages and difficulties of plant-landscape of urban road green space in New Districts were put forward so as to provide references for the development of green space landscape of urban road in Nanjing.