摘要：
The research is aimed to expand the scope of urban trees protection, promote urban residents' more rational understanding and appreciation of trees, and encourage their active participation in and promotion of urban forest construction.Selecting the main city area of Hefei as the research site,the research tried to identi-fy the notable trees.The evaluations of index system and identification methods were established:historical wit-ness and social culture were selected as the qualitative indicators; tree age and vitality, tree weight, tree species, site location, and aesthetic value were selected as 5 first-level quantitative indicators, and tree height, DBH, crown width, color and etc. were selected as 12 secondary quantitative indicators. The notable trees can be defined as the urban trees with rich historical and cultural connotations and aesthetic value,or with the fea-tures such as large size, beautiful shape, important or eye-catching position, rare species, public concern and popularity. Totally 112 trees were identified as notable trees in the main urban area of Hefei City, belonging to 23 species, 23 genera and 18 families. The number was five times more than the registered ancient and famous trees,which could be considered an effective complement to the ancient and famous trees.Among the identified notable trees, there were some differences in the characteristics such as tree species distribution, tree age structure, DBH distribution, spatial distribution, evergreen deciduous ratio and so on. It provided a new idea and suggestion on maintaining urban ecological balance and biodiversity,expanding the protection and research of the individual resources of the trees in the city.%为扩大城市树木保护的范围,促使城市居民更理性地了解和欣赏树木,更好地关爱和保护树木,积极参与及推进城市森林建设,以安徽省合肥市主城区为研究范围,以历史见证和社会文化为定性指标,以树龄及活力、树木体量、树种、立地位置、美学价值等5个一级定量指标和树高、胸径、冠幅、色彩等12个二级定量指标构建城市森林显著树评定指标体系,以及综合量化评分的显著树认定方法,将城市森林显著树定义为城市中体量大、树型优美、位置重要、种类珍稀,视觉上醒目、突出,且备受公众关注、喜爱,或具有较高历史文化内涵和美学价值的树木.在此基础上运用该认定方法,认定合肥市主城区显著树共23种112株,隶属18科23属,是挂牌古树数量的5倍多,认定的显著树在树种分布、年龄结构、胸径、空间分布、常绿落叶比等方面存在一定的差异.此方法是对古树名木的有效补充,为维护城市生态平衡和生物多样性,扩大对城市中树木个体资源的宣传保护和研究提供了新的思路与建议.
