城市干道绿化植物的调查与分析——以徐州市富春路为例

Investigation and Analysis of Greening Plants on Urban Main Road:A Case Study of Fuchun Road in Xuzhou City

对现有城市道路绿化植物群落物种的多样性进行分析,有助于提高道路绿化的生态效益.徐州市富春路绿化植物的调查结果表明:在3公里长绿化带内,乔木只有重阳木和樟树2种共191棵树,除13号群落是乔木和草本植物组成外,其他38个群落仅由单一乔木加单一灌木组成;灌木只有金边大叶黄杨、红叶石楠、绢毛杜鹃、火棘和金森女贞,总面积为2946.64m2,分别占灌木林面积的27.9%、30.9%、2.9%、17.5%、20.8%;草本仅有麦冬,面积只有25.2m2.不管是辛普森多样性指数还是香农-维纳指数,7号群落即重阳木和红叶石楠组成的群落多样性指数最高,而仅由樟树和金森女贞组成的33号群落的多样性指数最低.建议增加乡土乔木和灌木及耐荫草本植物的种类和面积,改善乔灌草混交模式和配置比例.

The analysis of species diversity of existing urban phytocoenosium is helpful to improve the ecological benefits of road greening.The survey on the greening plants in Fuchun Road of Xuzhou City shows that:In the 3 km long green belt,there are only 191 trees composed of two kinds of arbor trees of Bischofia polycarpa and Cinnamomum camphora.Except for the No.13 community,which is composed of arbor trees and herbs,the other 38 communities only consists of one kind of arbor trees and shrubs.The shrubs are Euonymus japonicas,Photinia serrulata,Rhododendron haematodes,Pyracantha fortuneana and Ligustrum japonicum,with a total area of 2946.64 m2,accounting for 27.9%,30.9%,2.9%,17.5%and 20.8%of the total shrub area respectively.Ophiopogon japonicus is the only herbaceous,and occupied area only 25.2 m2.Regardless of the Simpson index or Shannong-Wiener index,No.7 community was the highest in community diversity index,which was composed of B.polycarpa and Ph.serrulata,while No.33 community,composed only of C.camphora and L.japonicum,are the lowest diversity index.It is recommended to increase the species and areas of native trees,shrubs and overcast herbaceous plants,and to improve the mixed pattern and allocation ratio of arbor trees and shrubs.