The Selection Strategy Of Road Green Belt Tree Species In Haikou City Based On Sunshine Analysis

Based on the perspective analysis of sunshine factors,the design of urban roadway trees in Haikou City is studied.Haikou City is located in the tropics.Sunshine analysis is of great significance to the design of Haikou City street trees.As the skeleton of the urban green space network structure,Haikou City Road Tree is an important part of the urban road green space,and at the same time plays the role of the external image business card.It is of great significance to the development of urban gardens to study the tree species selection of street trees from the perspective of sunshine factors and to determine the volume and configuration mode of street trees.Taking Haikou City as an example,this study selects the roads from north to south and east-west in different directions,and surveys 19 urban roads in Haikou through sampling.The site was investigated for the width of the road,the type of the street tree,the height of the tree,the crown,the diameter of the breast,and the height of the buildings on both sides of the road.The survey data is calculated by Sketchup to calculate the sunshine time,and then the road width,building height,and street tree height are set as control variables,and quantitative analysis is performed to determine the sunshine time of different types of roadway trees.The results show that there is basically no difference between the north and south roads and the west side of the roadway trees.The height of the building and the height of the street tree have a greater impact on the street time,while the width of the road has little effect on the daylight hours of the street tree.The street trees of east-west roads are exposed to sunshine,and the north side street trees are longer than the south side street trees.The height of the building,the height of the street tree,and the width of the road have a significant impact on the sunshine time of the street tree.Based on the survey of tree species and volume of street trees,the allocation pattern of urban street trees in Haikou City was discussed from the perspective of sunshine factors.The design of tree species optimization schemes was carried out on the street trees of eight urban roads in Haikou City.