摘要
行道树是城市森林的重要组成部分,城市行道树结构特征的研究,有助于城市规划和建设,为正确评价城市生态系统的服务功能提供依据。本文通过对黄山市城区15条主干道路行道树的抽样调查,发现有乔木树种24种,灌木树种37种,分析行道树的组成、直径和冠幅结构及行道树物种多样性。结果表明,黄山市城区行道树组成优势种明显,直径在6~14cm的行道树占55.7%,街道之间行道树冠幅差异明显,新安北路的冠幅最大,为11.31m,天都大道冠幅最小,为2.4m,滨江中路树种多样性最大,H指数为2.6850,黄山东路树种多样性指数最小,H值为0.7498。
The street tree is an important part of urban forest. Study of the structure of the street trees will help to urban planning and construction, provide basis to evaluate the function of the urban ecosystem service. On the basis of investigating on data of street trees of 15 main streets in urban area of Huangshan city, there were 24 tree species and 37 shrub species. The compositions, diameter structure, crown structure and species diversity of street trees in Huangshan city were analyzed. The results were as follows: 1) The domi- nant species was obvious in the city; 2) The ratio of the trees with the diameter between 6-14cm to the total number of trees was 55.7%; 3) The difference of crown width of street trees was obvious among the streets, there was the biggest crown width in Xinan North Road, l l.31m and the least crown width in Tiandu Road, 2.4m; 4) Species diversity went to two extremes between Binjiang Middle Road (H=2.6850) and Huangshan East Road (H=0.7498).
出处
《中国农学通报》
CSCD
2007年第4期139-143,共5页
Chinese Agricultural Science Bulletin
基金
黄山学院自然科研资助项目"城郊景观变化研究-以黄山市为例"(2005ykj012)。
关键词
行道树
直径结构
冠幅结构
树种多样性
黄山市
Street tree, Diameter structure, Crown structure, Species diversity, Huangshan city