苏州市平江区行道树应用现状及分析

行道树作为城市道路景观和绿地系统的重要组成部分，在改善城市生态环境、美化城市形象等方面发挥着重要的作用。本文以苏州市平江区的行道树为研究对象，对其种类、数量、生长状况以及绿化和种植方式展开调查和分析。结果表明平江区行道树主要由9种木本植物组成，共计6091棵，其中香樟和二球悬铃木数量最多，分别占总数的43．47％和29．88％。二球悬铃木的胸径和冠幅均明显大于其它树种。平江区主、次干道行道树树种丰富，搭配多样；而支干路和快速路的行道树树种单一。平江区主要道路行道树的绿化形式多为多板多带式，而绿化方式则多为树带式和树池式组合。本文为今后苏州市平江区原有道路绿化养护管理和新建道路绿化建设提供依据。

The Application Analysis of Street Tree in Pingjiang District of Suzhou City

Street tree, as an important component in urban road landscape and green space system, plays a vitalrole in improving the urban ecological environment and promoting urban image. In this paper, we studied the streettree species, number, growth characteristics, greening and planting styles to analyze the application case of streettree. The results showed that street trees consisted of nine woody plants, whose total number was 6091 in Pingjiangdistrict. The camphor tree and plane trees had the higher number than other species, and the number accounted for 43.47% and 29. 88% of total number for camphor tree and plane trees, respectively. The plane trees had the big- gest diameter ant breast high and crown than other eight species. The main roads and collector streets had the abun-dant street tree species, however, the subsidiary roads and thruway had the monotonous street tree species. In Pingjiang district, the greening styles for street tree usually were multiple - board - multiple - zoster, and the plant- ing style was the combination of tree belt and tree pool. This paper can provide the advisable basis for urban road greening, conservation and management in Pingjiang district of Suzhou city.