Taking urban roads in Heyuan city as the research object,the species,ornamental effects and landscape characteristics of green plants on 102 roads in urban areas were investigated.The results showed that there are 240 species(including varieties)of road greening plants in urban area of Heyuan city,belonging to 176 genera and 70 families.The trees with high application frequency are Bischofia javanica,Cinnamomum officinarum,Alstonia scholari,etc.,and the shrubs include Duranta erecta'Golden Leaves',Loropetalum chinense var.rubrum,Ficus microcarpa'Golden Leaves',etc.,and the herbs include Ruellia simplex,Zoysia pacifica,Hymenocallis littoralis and so on.The species number ratio of tree,shrub and herb is 2.8∶2.3∶1.0.The road greening landscape in Heyuan city has the characteristics of rich plant species,changeable shape and Hakka style.In view of the main problems such as the simple plant community structure,the application level and construction quality of native tree species need to be improved,some suggestions were put forward to strengthen tree safety risk assessment and management,and strengthen the application of native and suitable plants.
Road greeningLandscape surveyLandscape characteristicsPlant species