邯郸市行道树的多样性调查及配置建议

Diversity Investigation of Street Trees and Disposition Suggestion in Handan City

为科学规划邯郸市行道树的物种多样性分布,适应国家级园林城市的建设需要,采用抽样调查方法对邯郸市主城区20条主要道路的行道树进行详细调查,分析了邯郸市主城区行道树的物种组成,探讨了多样性指数和行道树绿化发展趋势。结果表明:邯郸市主城区行道树共有18科25属28种,其中乔木14科19属20种,灌木4科6属8种;物种丰富度指数(S)、Shannon-Wiener指数(H)和Simpson指数(D)在各道路间差异明显。S、H、D指数以前进大街最好(H=2.94、D=1.33),复兴路(H=0.53、D=0.39)、农林路(H=0.59、D=0.41)、陵园路(H=0.55、D=0.36)和渚和路(H=0.63、D=0.66)最差。需增加行道树种类,调整落叶树种和常绿树种,针叶和阔叶比例,增加观赏性强的乔木及花灌木种类和数量。

On the basis of the investigation of the street trees of 20 main streets in the main urban area of Handan city,the composition,species diversity and development trend of the street trees were analyzed to scientifically plan species diversity distribution of Handan roadside trees and adapt to the national garden city construction needs.The results showed that there were 28 tree species belonging to 25 genera and 18 families,including 20 arbor species,belonging to 19 genera and 14 families and 8 bush species,belonging to 6 genera and 4 families.There are significant difference of abundance index（S）,Shannon-Wiener index（H） and Simpson index（D） among different street trees.S,H and D of Qianjin street（H=2.94,D=1.33） are the best,and Fuxing road（H=0.53,D=0.39）,Nonglin road（H=0.59,D=0.41）,Lingyuan road（H=0.55,D=0.36）,and Zhuhe road（H=0.63、D=0.66） are the worst.It is needed to increase tree species,adjust proportion of deciduous trees and green trees,coniferous trees and broad-leaved trees,increase species and quantity of arbor and ornamental shrubs with strong appreciation.