城市树木致伤风险可视化评估:以武汉市中山公园为例

Urban Tree Injury Risk Assessment:A Case Study of Zhongshan Park in Wuhan City

城市中的树木能提供多种生态系统服务,但树木倒伏、树枝坠落也可能致人伤害,评估城市树木风险能有效地预防伤害发生、保障人身安全。但当前研究的评估维度多聚焦于树木自身,对城市人群致伤可能性的考量较少。建构了风险严重性、风险可能性和致伤潜力3个维度的城市树木致伤风险指数(IUTIR)评估方法,以武汉市中山公园为例展开树木致伤风险评估,并分析了树木自身风险、致伤潜力与致伤风险之间的空间关系。研究发现:68.7%的区域中,树木自身风险与致伤潜力之间的空间关系呈现正相关性,25.1%的区域呈现负相关性。在此基础上,提出了预防树木致伤风险的管理建议。为公园规划设计和树木风险管理策略提供参考,从而减弱树木致伤风险对人体健康的影响。

Trees in cities provide a variety of ecosystem services,but falling trees and branches can also cause injuries,and assessing urban tree risk can be an effective way to prevent injuries and protect people.However,most of the current studies have focused on the trees themselves,and less consideration has been given to the potential for injury to the urban population.In this paper,a 3-dimensional urban tree injury risk index(IUTIR)assessment method of risk severity,risk likelihood and injury potential was developed,and the spatial relationship between tree risk,injury potential,and injury risk in Zhongshan Park,Wuhan was analyzed.The spatial relationship between tree risk and injury potential was found to be positive in 68.7%of the areas and negative in 25.1%of the areas.Based on this,management recommendations for preventing tree injury risk were proposed.The study provides a reference for park planning and design and tree risk management strategies to mitigate the impact of tree injury risk on human health.