乡土树种在南宁主要道路绿化中的应用

对乡土树种在南宁市22条主要城市道路绿化的应用情况进行调查,并对其结构进行分析。结果表明,南宁市现有道路绿地主要应用的乡土树种中乔木有18科、37种,灌木22科、28种;出现频度最高的乔灌木乡土树种分别为扁桃63%,黄金榕73%;乔木与灌木的种类比为1.3∶1.0;乔木的常绿、落叶树种的种类比37∶2。在此基础上,针对目前乡土树种在南宁市道路绿化存在的问题,提出了道路绿化建设的建议和对策。

Survey of Local Plants on Street Greening along Urban Streets in Nanning

A street greening survey of local plants was conducted to 22 major streets in the urban area of Nanning and their composition and structural characteristics were analyzed.The results showed that there were 37 arbor tree species from 18 families,and 28 shrub species from 22 families.It was found out that the highest application frequency of arbor tree specie was Amygdalus communis,which reached 63% and Ficus microcarpa cv.was the shrub tree specie with the highest application frequency that reached 73%.The ratio of arbor tree species and the shrub tree species was 1.3∶1;the number ratio between the evergreen arbor tree species and the deciduous arbor tree species was 37∶2.On the above of this,aiming at the problems,several advices were put forward for road greening construction.