湛江南国热带花园植物群落调查

为了构建稳定合理的植物群落，更好地发挥城市公园植物群落的生态功能，采用样方法对湛江南国热带花园的植物群落进行调查。结果表明，湛江南国热带花园主要植物以热带及亚热带植物为主，地域特色明显，植物群落的类型较丰富。物种重要值总趋势表现为：乔木层<灌木层<草本层。物种多样性指数表明，Pielou均匀度指数集中于0.6~0.8之间，Shannon-Wiener指数集中于1.7~2.3。调查表明，湛江南国热带花园植物群落物种多样性丰富，但形成更稳定合理的植物群落仍需要引进新的植物种类及良好的养护管理。

Study on Plant Communities of Southland Tropical Garden in Zhanjiang

In order to construct stable and reasonable plant communities which can play better role in ecological function in city, the plant communities of southland tropical garden were surveyed in Zhanjiang by quadrat method. The results showed that the main plants were tropical plants and the types of communities were rich. The trends of the important index of different sample plots were arborshrubherbage. The range of the Pielou index of 4 sample plots was 0.6-0.8. The range of Shannon-Wiener index was 1.7-2.3. The kinds and the distributions of species in 4 sample plots were almost same. The investigation revealed that the plant species were very rich in southland tropical garden in Zhanjiang, but more new plant species and better maintenance management would be needed to construct more stable and reasonable community.