河源市城市道路绿化景观调查与分析

Investigation and Analysis of Urban Road Greening Landscape in Heyuan City

摘要:

以河源市城市道路为研究对象，调查了市区 102 条道路绿化植物的种类、观赏效果及景观特色。结果表明，河源市区现有道路绿化植物共有 240 种（含变种），隶属于 70 科，176 属，应用频度较高的乔木有秋枫 Bischofia javanica、樟 Cinnamomum officinarum、糖胶树 Alstonia scholaris 等，灌木有金叶假连翘 Duranta erecta 'Golden Leaves'、红花檵木 Loropetalumchinense var. rubrum、黄金榕 Ficus microcarpa 'Golden Leaves' 等，草本植物有蓝花草Ruellia simplex、细叶结缕草Zoysia pacifica、水鬼蕉Hymenocallis littoralis 等，乔木、灌木、草本植物的种类数量比为 2.8 ∶ 2.3 ∶ 1.0。河源市区道路绿地景观具有植物种类丰富、造型多变和体现客家风情等特色。针对植物群落结构较为简单、乡土树种应用水平和施工质量有待提升等主要问题，提出了加强树木安全风险评估与管理、加强乡土适生植物应用等建议。

Abstract:

Taking urban roads in Heyuan city as the research object, the species, ornamental effects and landscape characteristics of green plants on 102 roads in urban areas were investigated. The results showed that there are 240 species (including varieties ) of road greening plants in urban area of Heyuan city, belonging to 176 genera and 70 families. The trees with high application frequency are Bischofia javanica, Cinnamomum officinarum, Alstonia scholari, etc., and the shrubs include Duranta erecta 'Golden Leaves', Loropetalum chinense var.rubrum, Ficus microcarpa 'Golden Leaves', etc., and the herbs include Ruellia simplex, Zoysia pacifica, Hymenocallis littoralis and so on. The species number ratio of tree, shrub and herb is 2.8∶2.3∶1.0. The road greening landscape in Heyuan city has the characteristics of rich plant species, changeable shape and Hakka style. In view of the main problems such as the simple plant community structure, the application level and construction quality of native tree species need to be improved, some suggestions were put forward to strengthen tree safety risk assessment and management, and strengthen the application of native and suitable plants.