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2008年6月,采用样方调查法对湛江特呈岛红树植物群落结构及白骨壤(Avicennia marina)的种群特征进行了全面调查。结果表明:该地区红树林是白骨壤纯林以及白骨壤为主,有红海榄(Rhizophora stylosa)、木榄(Bruguieragymnorrhiza)和桐花树(Aegiceras corniculatum)的混交林。白骨壤在潮滩上连续分布,红海榄、木榄和桐花树生长于近陆林缘及潮滩的中部,物种多样性指数由陆缘向海缘呈降低趋势。通过分析白骨壤种群的株高、地径在潮滩上的变化规律得出年幼的个体聚集于近陆林缘,近海林缘较少。白骨壤种群的年龄结构为增长型,但是根据生境条件及白骨壤种群在海滩上的分布格局,分析得出该红树林资源处于退化的状态。
In June 2008, a comprehensive investigation of the mangrove community structure and the population characteristics of Avicennia marina in Zengjiang Island was conducted by means of quadrat investigation. The results showed that the mangroves in this area are purely Avicennia marina and Avicennia marina, with mixed stands of Rhizophora stylosa, Bruguiera gymnorrhiza and Aegiceras corniculatum. Avicennia marina distributed continuously on the tidal flat. Rhynchophylla, M. gramineus and Aegiceras corniculatum grew in the middle of the near-edge forest and tidal flat, and the species diversity index decreased from the marginal to the margin. By analyzing the plant height and ground diameter of Avicennia marina population, the young individuals clustered in the near-edge forest margin and the coastal margin was less. The age structure of Avicennia marina population is a growth type, but according to the habitat conditions and the distribution pattern of Avicennia marina population on the beach, the mangrove resources are in a degraded state.