上海市长宁区行道树组成结构分析

Analysis of the Composition and Structure of Street Trees in Changning District, Shanghai

摘要: 为了解长宁区行道树的应用情况，选择34条道路作为研究对象，调查分析行道树组成结构、规格大小、观赏性状等指标。结果表明，长宁区行道树包含17个树种，涉及14科17属，其中悬铃木和香樟是使用最多的树种；树高分布在5~10 m范围内的数量占比超过60%，胸径在10~30 cm范围的数量占比近一半；有明显季相变化的树种有15种，其中观叶树种最多，有9种，观果树种最少，只有1种。论文最后分析了长宁区行道树应用中存在的问题，并给出了优化建议，以期为长三角地区行道树的规划设计和养护管理提供参考和借鉴。

Abstract: To understand the application of street trees in Changning District, 34 roads were selected as the research objects to investigate and analyze indicators such as the composition structure, specifications, and ornamental traits of street trees. The results showed that the street trees in Changning District included 17 tree species, involving 14 families and 17 genera, among which Platanus acerifolia and Cinnamomum camphora were the most commonly used tree species. The number of trees with a height distribution in the range of 5-10m accounted for more than 60%, and the number of trees with a diameter at breast height in the range of 10-30cm accounted for nearly half. There were 15 tree species with obvious seasonal phase changes, among which the number of foliage-viewing tree species was the largest, with 9 species, and the number of fruit-viewing tree species was the smallest, with only 1 species. Finally, the problems existing in the application of street trees in Changning District were analyzed, and optimization suggestions were given. The research results can provide reference for the planning, design, maintenance and management of street trees in the Yangtze River Delta region.