台风灾害下城市绿地园林树木风灾损伤及影响因素  

Typhoon Damage to Urban Greening Trees and its Influencing Factors

作　　者：刘瑞雪[1] 任少蕾 Liu Ruixue;Ren Shaolei(College of Architecture and Urban Planning,Shenzhen University,Shenzhen 518060,Guangdong,China)

机构地区：[1]深圳大学建筑与城市规划学院,广东深圳518060

出　　处：《中国城市林业》2023年第2期76-82,共7页Journal of Chinese Urban Forestry

基　　金：广东省自然科学基金项目(2018A030310425);深圳市高等院校稳定支持计划项目“气候变化对粤港澳大湾区红树林湿地分布的影响及适应性管理策略研究”(20220807102319001)。

摘　　要：以深圳大学后海校区园林树木受台风“山竹”侵袭为研究案例,通过对树木风灾损伤和绿地环境的实地调查,结合台风风环境模拟,采用冗余分析研究城市绿地园林树木风灾损伤与相关影响因素的关系,采用变差分解定量分离不同类型影响因素的解释能力,确定关键因素。结果表明:1)树木自身抗风性、台风风速和绿地环境3类10个因素对树木风灾损伤均有影响,其中台风风速与树木风灾损伤的相关性最大,其次是树木自身抗风性、场地高程、是否有树池、干基周围是否有硬质铺装及覆盖度等。2)树木风灾损伤是众多因素综合作用的结果,而树木自身抗风性、台风风速和绿地环境这3类因素对树木风灾损伤的影响占总影响的65.1%,其中台风风速的影响大于树木自身抗风性,绿地环境的影响最小;树木自身抗风性与绿地环境的交互作用最大,台风风速与绿地环境的交互作用最小。最后,根据研究结果提出树木抗风对策,为城市绿地防风减灾规划设计与建设提供科学依据。By taking the tree damage caused by the typhoon Mangkhut in Houhai campus of Shenzhen University on September 16,2018,as the case study,the study carries out the field investigation of typhoon damage to trees and site environment,analyzes the relationships between the typhoon damage to urban landscaping trees and its influencing factors by using redundancy analysis in combination with the typhoon environment simulation,and quantitatively partition the explanatory power of influencing factors by using the variation partitioning method to determine the key elements.The results show that:1)Ten elements in 3 categories including wind resistance of trees,average wind speed of typhoon and site environment all have the influences on the wind damage to urban landscaping trees.The average wind speed of typhoon has the largest correlation with the damage to trees,following by the wind resistance of trees,elevation of site,planting pool,hard pavement around stem base and tree coverage;and 2)Wind damage to urban greening trees is the result from the interaction of many influencing factors.The influences of wind resistance of trees,wind speed of typhoon and site environment on wind damage to trees account for 65.1%of the total influence.Among them,wind speed of typhoon has the larger influence than wind resistance of trees,and site environment has the least influence.The interaction between wind resistance of trees and site environment is the greatest,while the interaction between wind speed of typhoon and site environment is the least.Based on the research results,the wind resistance strategy is proposed for urban landscaping trees.The study provides a science basis for the planning,design and construction of urban space in cities for mitigating wind disasters.

关 键 词：台风 城市绿地 园林树木 风灾损伤 影响因素 

分 类 号：S688[农业科学—观赏园艺]