【摘要】 [目的]研究红树林区不同红树林群落及环境变化与底栖动物多样性之间的关系,为红树林湿地保护和可持续利用提供科学依据。[方法]采用机械抽样方法选取采样点,对东寨港北港、三江典型红树林区底栖动物资源进行定性和定量调查,用多样性指数、丰富度、均匀度等特征指数进行底栖动物多样性分析,探讨不同红树林群落对底栖动物多样性的影响。[结果]北港区和三江区的红树林底栖动物组成及数量分布都存在差异;北港红树林区底栖动物平均生物量、栖息密度和多样性指数分别为608.69 g.m-2、683.33个.m-2和1.157 1,三江红树林区分别为:214.60 g.m-2、547.00个.m-2和1.037 2;[结论]北港红树林区的底栖动物多样性比三江红树林区丰富。底质和盐质等生境条件以及红树林群落的高度、郁闭度和林下通风透光等生态特征的差异都是造成红树林底栖动物多样性差异的重要原因。更多还原

【Abstract】 This paper researched the environmental changes in mangrove regions,as well as the relationship between different mangrove communities and macrobenthos diversity to provided a scientific basis for mangrove wetland protection and sustainable use.Mechanical sampling method was used to select sampling points,and qualitative and quantitative survey for macrobenthos resources in mangrove regions in Peigang and Sanjiang of Dongzhai harbor.Using the diversity index,richness,evenness,the diversity of benthic fauna was analyzed.The effects on macrobenthos diversity from the different communities of the mangrove were also analyzed.The number and composition of the macrobenthos in mangrove region in Peigang was very different from that in Sanjiang.The average biomass and diversity of macrobenthos in mangrove region in Peigang was 608.69 g·m-2 and 1.157 1 respectively,Benthic habitat density was 683.33 m-2,that in Sanjiang was 214.60 g·m-2 and 1.037 2,Benthic habitat density was 547.00 m-2.The diversity of macrobenthos in mangrove region in Peigang was higher than that in Sanjiang.The difference in quality of soil environment and plant height of mangroves,Yu shelter,the forest ecosystem,such as light and ventilation in different mangrove communities caused differences in the characteristics of the diversity of macrobenthos.更多还原