成都市行道树结构特征研究——以青羊区为例

Study on the Characteristics of Street Tree Structure in Chengdu——A Case of Qingyang District

随着"公园城市"建设在成都市的整体推进,成都市主城区的街道正在不断实施行道树增量提质,但迄今为止,还未曾研究过成都市行道树的选择和配置效果。因此,本论文对成都市青羊区范围内455条道路的全部树种进行了详细勘查,并按照宽度和功能,对道路进行了分级划分,在此基础上开展了调研、分析和评价。结果发现,青羊区现有行道树树种73种,隶属31科58属,树种主要集中于樟科、木兰科、桑科和豆科,出现频度较高的行道树依次为银杏、小叶榕、细叶榕、黄葛树;平均树高较高,平均胸径正常,行道树总体生长状态良好,但仍需注意时常养护;青羊区树种结构不平衡,体现在乡土树种开发利用不足、季相变化不明显等问题上,需要进一步优化行道树的结构。

With the overall advancement of the construction of“Park City”in Chengdu,streets in the main urban area of Chengdu are continuously implementing incremental improvement of street trees,but so far,the selection and configuration effects of street trees in Chengdu have not been studied.Therefore,the paper conducted a detailed inspection of all tree species of 455 roads within Qingyang District of Chengdu,and classified the roads according to their width and function.On this basis,research,analysis and evaluation were carried out.The results found that there are 73 street tree species in Qingyang District,belonging to 31 families and 58 genera.The tree species are mainly concentrated in Lauraceae,Magnoliaceae,Moraceae,Leguminosae and Palmaceae.The most frequent street trees are Ginkgo and Small Banyan,Banyan,and Huangpu trees.The average tree height is high,average diameter at breast height is normal,and street trees are in good overall growth,but still need to be maintained regularly.The structure of tree species in Qingyang District is unbalanced,which is reflected in insufficient development and utilization of native tree species and insignificant seasonal changes,and so on.The street tree structure needs to be further optimized.