【摘要】 通过香港大榄郊野公园森林群落的样地调查,利用物种的丰富度、多样性指数和均匀度指数对群落的类型、结构和物种多样性进行了分析和研究。结果显示了7个主要的森林群落的物种多样性和群落结构的关系,森林群落的物种多样性顺序为:土沉香群落>台湾相思群落>红胶木群落>木荷群落>毛叶桉群落>湿地松+鸭脚木群落>柠檬桉群落。森林群落的乔、灌、草3个层次的丰富度和多样性指数普遍以灌木层最高,均匀度指数则以乔木层最高。而影响物种多样性的因素主要为造林技术和频繁的山火。更多还原

【Abstract】 An investigation on the forest communities in the Tai Lam Country Park of Hong Kong was carried out in this study. The structure and diversity of forest communities are studied using diversity, richness and evenness indices. The results showed that the species diversity and evenness of forest communities were in the order of Aquilaria sinensis > Acacia confusa > Lophostemon confertus > Schimasuperba >Pinus elliottii + Schefflera heptaphylla > Eucalyptus citriodora > Eucalyptus torelliana. The shrub stratum of forest community had a higher value in richness index and diversity than arbor stratum and herb stratum, whilst the arbor stratum ranked the highest in evenness index in the three strata. The main factors that affect species diversity were found to be the techniques of tree planting and the frequently occurred forest fi res.更多还原