中文摘要：

为探讨有关城市公园植物群落构建的相关问题,以中亚热带地区内宁波、泸州两城市为例,对城市公园植物群落进行调查,对公园植物群落的如下物种数量特征进行分析：物种组成、树种重要值、Shannon-Wienner多样性指数、Pielou均匀度指数,从而总结出群落物种选择与搭配机制,发现植物群落构建中存在的现状问题;并对此提出植物群落构建推荐树种和构建方法,以期为中亚热带地区的城市公园植物群落构建提供参考。

英文摘要：

In order to investigate the related problems of construction of plant community in urban parks, this paper selected several plant communities in Ningbo and Luzhou city parks to survey following quantitative attributes of species： species composition, species important value, Shannon-Wienner diversity index, and Pielou evenness index. Then, the mechanisms of species selection and arrangement were summarized, and some current problems about construction of plant community was introduced. Finally, a lot of plant species and construction methods were recommended to provide reference for the construction of plant communities in the mid-subtropical zone.