海南尖峰岭热带半落叶季雨林物种组成、结构及其多样性特征  

The Characteristics of Species Composition, Structure and Diversity of Tropical Semi-deciduous Forest in Jianfengling, Hainan Island

作　　者：苏红华 王红 陈宗杰 余传文 陈晓熹 吴建辉[3] 周璋[3] 李意德[3] 许涵[3] SU Honghua;WANG Hong;CHEN Zongjie;YU Chuanwen;CHEN Xiaoxi;WU Jianhui;ZHOU Zhang;LI Yide;XU Han(Jianfengling Forestry Bureau of Hainan,Ledong,Hainan 572542,China;South China Limestone Plants Research Center/ College of Forestry and Landscape Architecture,South China Agricultural University,Guangzhou,Guangdong 510642,China;Research Institute of Tropical Forestry,Chinese Academy of Forestry,Guangzhou,Guangdong 510520,China)

机构地区：[1]海南省尖峰岭林业局,海南乐东572542 [2]中国南方石灰岩植物研究中心/华南农业大学林学与风景园林学院,广东广州510642 [3]中国林业科学研究院热带林业研究所,广东广州510520

出　　处：《林业与环境科学》2018年第6期21-27,共7页Forestry and Environmental Science

基　　金：中央级公益性科研院所基本科研业务费专项资金(CAFYBB2017ZE001)

摘　　要：应用样方调查法,对海南尖峰岭半落叶季雨林的物种组成结构及多样性特征进行研究。结果表明,在总面积5 000 m^2的样方中,共记录到胸径≥1 cm的植株2 565株,除3个种未确定种名外,其他分属26科42属46种。以大戟科(Euphorbiaceae)和桑科(Moraceae)为优势科,以刺桑(Streblus ilicifolius)、布渣叶(Microcos paniculata)和鹊肾树(Streblus asper)为优势种。当取样面积达到3 850 m^2或取样植株数达到1 800株时,记录到的物种数有47种,占总物种数的95.92%。样地内所有植株平均胸径为6.36 cm,径级分布呈倒"J"型。刺桑、赤才(Lepisanthes rubiginosa)和粗糠柴(Mallotus philippensis)的空间分布呈较强的聚集性,布渣叶和鹊肾树的分布较均匀。Shannon-Wiener多样性指数和Simpson多样性指数较低,样地的物种种类较少,植株分布的不均匀。The characteristics of species composition,structure and species diversity of the semi-deciduous forest in Jianfengling,Hainan Island were studied by plot method.The results showed that,in the sample plot of 5 000 m^2,a total of 2 565 individuals,with stem diameter at breast height(DBH)≥1.0 cm,belonging to 26 families,42 genera and 46 species were recorded,except of 3 unidentified species.The dominant families were Euphorbiaceae and Moraceae.The dominant species were Streblus ilicifolius,Microcos paniculata and Streblus asper.When the sampling area was 3 850 m^2 or the sampling individuals were 1 800,47 species and up to 95.92%of all species were counted in the plot by species–area and species–individual curves.The average DBH of all stems was 6.36 cm and the DBH size class distribution showed a typical inverse-J distribution.The spatial distribution of Streblus ilicifolius,Lepisanthes rubiginosa and Mallotus philippensis were strongly clustered.The distribution of Microcos paniculata and Streblus asper were more uniform.Both Shannon-Wiener diversity index and Simpson diversity index were relatively low.There were fewer species in the plot and species distribution was relatively uneven.

关 键 词：群落结构 物种多样性 半落叶季雨林 尖峰岭 

分 类 号：Q948.12[生物学—植物学]