APP下载

广州市环市路行道树树木安全风险评估与管理探析

2021-09-15贾益兴雷杰黄颂谊

广东园林 2021年4期

贾益兴 雷杰 黄颂谊

摘要:环市路是广州市重要主干道路,其道路绿化的安全性是城市绿化管理工作的的重要内容之一。采用视觉评估法(Visual Tree Assessment,VTA)以及无损检测法对环市路行道树树木风险进行综合评估,并分析树木形态因子与风险因子间的相关性。结果发现,环市路11.2%的行道树存在安全风险,不同树种的安全隐患率差异较大,且树木形态因子与风险因子间存在显著的相关性。并从树木安全风险评估与管理角度探讨行道树种植设计、施工及日常管养,推动城市绿化精细化管理。

关键词:行道树;树木安全风险评估;形态因子;风险因子

中图分类号:S688

文献标志码:A

文章编号:1671-2641(2021)04-0093-04

收稿日期:2021-01-12

修回日期:2021-03-28

Abstract: Huanshi Road is an important trunk road in Guangzhou, and the safety of its road greening is one of the important contents of urban greening management. In this study, methods of Visual Tree Assessment (VTA) and non-destructive testing are used to comprehensively assess the risk of trees along Huanshi Road, and the correlation between tree morphology factors and risk factors is analyzed. The results show that 11.2% of street trees in Huanshi Road have safety risks, and the safety risk rates of different tree species are significantly different. Meanwhile, there is a significant correlation between tree morphology factors and risk factors. Finally, from the perspective of tree safety risk assessment and management, the planting design, construction and daily management and maintenance of street trees are discussed to promote the refined management of urban greening.

Key words: Street tree; Tree safety risk assessment; Morphology factor; Risk factor

廣州市城市绿化一直处于全国领先水平,尤其是2010年前后,以举办亚运会为契机,广州市全面推进城市绿化工作,增加城市绿量,提升绿化质量。近些年,在“十二五发展规划”的指导下,广州市实施“花城”工程,强化“花城”形象。行道树作为城市绿化的骨架,对广州市塑造城市形象,改善生态环境,建设“宜居花园城市”具有不可代替的作用。

城市树木在带来众多正面效益的同时,也存在着一些潜在的不安全因素。特别是行道树,受复杂城市环境的影响,易出现树冠偏斜、树体倾斜、树干腐朽、根系受损等不健康状况[1~2],在强风、台风等恶劣天气时易产生枝条坠落、树干断折、树体倒伏等风险,给市政设施、城市交通以及市民人身财产安全带来严重的威胁。通过树木安……

登录APP查看全文