福州市区行道树数量特征分析

Quantitative characteristics of street trees in Fuzhou City

抽样调查表明,福州市区常见行道树约有25科35属44种,以棕榈科最多,有8属8种,其次是桑科榕属5种,其中以常绿树种和乔木占优势。重要值分析表明,乔木种类以榕树占绝对优势,其次是果,灌木种类以黄金榕占优势。胸径处于25～30cm和树高处于6～8m的树木最多。最后,针对现状与存在的问题进行讨论并提出建议。

Sampling survey indicated that about 44 tree species belonging to 35 genera and 25 families are common street trees in Fuzhou city. Among the families, Palmae is the largest one, containing 8 genera and 8 species, followed by genus Ficus of family Moraceae, containing 5 species. Majority of the species are evergreen and arbor trees. Analysis of importance value showed that Ficus microcarpa is significantly dominant among the arbor trees, and the next is Mangifera indica. Ficus microcarpa ＇Golden leaves＇ is dominant among shrubs. It was found that most trees were in sizes of 25-30 cm of DBH （Diameter at breast-height） and 6-8 m of height. Current status and existing problems were discussed and recommendations were proposed.