摘要
调查与正确评估行道树的危险度,有利于保持景观效果,使城市行道树能够更好、更有效地发挥其应有的作用,降低因行道树倒伏而妨碍交通或对人民生命财产安全造成损失。运用目测树木评估法(VTA)评估法,对福州市常用的11种行道树进行潜在危险度调查与分析。结果表明:垂柳(Salix babylonica Linn.)的潜在危险度指数最高(48.6);潜在危险度指数值达30以上的有白兰(Michelia alba DC.Syst.)、羊蹄甲(Bauhinia purpurea Linn.)和香樟(Cinnamomum camphora Linn.);潜在危险度指数值在20以上的有天竺桂(Cinnamomum japonicum Sieb.)和杧果(Mangifera indica Linn.);麻楝(Chukrasia tabularis A.Juss.)、榕树(Ficus microcarpa Linn.)、大叶榕(Ficus virens Ait.var.sublanceolata)、高山榕(Ficus altissima Bl.Bijdr)和蒲葵[Livistona chinensis(Jacq.)R.Br]等5种行道树的潜在危险度指数值均小于20,潜在危险性相对较小。
Prompt investigation and correct assessment of the risk of street trees would help us maintain the landscape effects and reduce losses, including transportation or people＇s lives and property, which are caused by lodging trees. 11 street tree species were investigated and analyzed using the visual tree assessment （VTA） approach. The results showed that Salix babylonica Linn. had the highest potential danger index, top to 48.6 and it had great potential danger. The tree species with the potential risk index value of 30 or more were Michelia alba DC. Syst. , Bauhinia purpurea Linn. , Cinnamomum camphora Linn.. The tree species with the potential risk index value of 20 or more were Cinnamomum japonicum Sieb. , Mangifera indica Linn. and Chukrasia tabularis A. Juss. , Ficus microcarpa Linn. , Ficus virens Ait. var. sublanceolata, Ficus altissima B1. Bijdr and Livistona chinensis （ Jacq. ） R. Br had the lowest potential risk index value, and they had the lower potential danger. Accordingly the proposals for virescemce and management of urban street tree species are offered.
出处
《森林与环境学报》
CSCD
北大核心
2015年第2期169-174,共6页
Journal of Forest and Environment
基金
国家自然科学基金项目(31100303)
关键词
目测树木评估法
行道树
危险度
福州市
visual tree assessment
street trees
damage risk
Fuzhou City
