上海中心城区公园植物群落特征及多样性分析

Analysis on Plant Community Characteristics and Diversity in Parks of Shanghai Center City

实地调查了上海中心城区13个公园的植物配置,对92个植物群落的树种组成、群落特征、植物多样性进行了分析,结果表明:1)植物群落共有维管植物246种.其中木本植物116种,草本植物130种,常绿树种与落叶树种之比为1∶1.37;2)植物群落以三层结构的常绿落叶阔叶混交林类型为主,符合当地的自然植被特征;3)中山公园和上海植物园的多样性指数较其他公园高,植物群落以近自然式为主较稳定.在此基础上提出了上海市公园植物方面现有的一些问题,并对今后城市公园绿化植物配置提出了一些建议.

The paper investigates plant furnishing of 13 parks of Shanghai center city and analyses the composition of trees,community characteristics and plant diversity.The results indicate：1）There are 246 vascular plants.It comprises 116 woody plants and 130 herbaceous plants.The ratio is 1∶1.37 between evergreen and deciduous trees.2）The maximum plant community is three-decker evergreen and deciduous forest community.This conforms to the character of natural vegetation.3）The diversity indexes of Zhongshan Park and the Shanghai Botanical Garden are higher than those of the other parks.Their plant communities are close to the nature and more stable than others.On the basis of the above the paper points out some existing problems of plants in Shanghai parks and makes some suggestions on plants configuration of the city park in future.