| Urban road green space landscape,as an important image window of the city,meets the social activities and economic activities of human beings,and also forms the basis of the beautiful living environment and urban functions of the city.It is also an indispensable component of the urban green space landscape ecosystem.This paper selects Zhengdong New District of Zhengzhou City as the research area,and takes 8 main roads and 7 secondary trunk roads in Zhengdong New Area as research objects.The plant species diversity,road green space section form,plant vertical space allocation and plant ornamental characteristics of the new area Four aspects of investigation and research,through literature review,field investigation,mathematical statistics and other methods to summarize the characteristics and current status of road greenland plants in Zhengdong New District of Zhengzhou City,to give countermeasures to the problems or deficiencies in urban roads,In the future,Zhengdong New District will provide some good reference suggestions for the road green area construction and development direction.The main findings are as follows:1.Among the 32 sample samples selected this time,the survey results showed that there were 45 families,76 genera and 107 species in total.From the perspective of life types,there are 25 families,47 genera and 58 species of trees,including 18 species of evergreen trees and 40 species of deciduous trees.There are 16 families,27 genera and 35 species of shrubs,including 17 species of evergreen plants and 18 species of deciduous plants.There are 8families,13 genera and 14 species of herbaceous plants.2.In the form of road green section in Zhengdong New District,the four-plate five-belt road sample has the highest frequency,while the one-plate two-belt road sample has the least frequency.3.The average species richness index of the arbor layer and shrub layer in the road green space reached 5.5157.Through data comparison,we can conclude that the species richness of arbor species is higher than that of shrub layer species.4.The urban road green space plant community in Zhengdong New District is diverse,andthe deciduous evergreen mixed community is the main mode in the construction.5.Through the investigation of the plant species,it is found that the shrub layer has the most species of flowering plants,the most abundant species and the most vivid colors.Through field research on Zhengdong New Area,data analysis,the road green space plant landscape in the region mainly has the following problems:(1)the types of street trees are not rich,the plant diversity is low,and the summer shading effect is poor;(2)part of the car The greenbelt plant configuration has a single repetition rate;(3)plants are not paying enough attention to vertical greening and late maintenance management is not in place;(4)the secondary road greenland plant seasonal landscape is lacking,and the plant ornamental characteristics are not rich.In response to these problems,several feasible suggestions are proposed based on the characteristics of Zhengdong New District and the future direction of urban development:(1)increase the types of street trees,select fast-growing,crown-large plants;(2)continuously improve road plant configuration models,enrich Road greening;(3)Appropriately increase the proportion of vertical greening and plant conservation and management;(4)Increase the diversity of shrubs and herbaceous plants to make the plant landscape four distinct. |
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