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植物研究 ›› 2008, Vol. 28 ›› Issue (3): 353-358.doi: 10.7525/j.issn.1673-5102.2008.03.022

• 论文 • 上一篇    下一篇

稀有植物十齿花群落物种多样性研究

林长松1,2;左经会1;廖 雯1   

  1. (1.六盘水师范高等专科学校生物与地理科学系,六盘水 553004) (2.中国农业大学农学与生物技术学院, 北京 100094)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2008-05-20 发布日期:2008-05-20
  • 基金资助:
     

Species Diversity of Rare Plant Dipentodon sinicus Communities in Yushe National Forest Park

LIN Chang-Song;ZUO Jing-Hui;LIAO Wen   

  1. (1.Department of Biology and Geography Science,Liupanshui Teachers College,Liupanshui 553004) (2.College of Agronomy and Biotechnology,China Agricultural University,Beijing 100094)
  • Received:1900-01-01 Revised:1900-01-01 Online:2008-05-20 Published:2008-05-20
  • Supported by:
     

摘要: 运用样方法对贵州省玉舍国家级森林公园稀有保护植物十齿花(Dipentodon sinicus)群落的物种多样性进行了研究,结果表明:玉舍国家级森林公园十齿花群落以蔷薇科、杜鹃花科、壳斗科、桦木科、山茶科、樟科、忍冬科、山茱萸科等为优势科;10个样地中有8个样地以十齿花种群占绝对优势,其平均重要值高达135.69,远远高于其它种群;十齿花群落乔木层物种丰富度为2.847、Simpson指数为0.601、Shannon-Wiener指数为1.523、种间相遇机率为0.601、均匀度指数为0.569,总体上均小于灌木层(分别为:5.580、0.830、2.377、0.829、0.672),表现为较明显的亚热带常绿落叶阔叶混交林的物种多样性特征。10个样地中,Q1的物种多样性程度最高,Q3次之,Q5和Q6最小,多样性程度最低,10个样地的物种多样性排序为Q1>Q3>Q9>Q7>Q2>Q4>Q10>Q8>Q5>Q6

关键词: 十齿花, 玉舍国家级森林公园, 珍稀植物, 群落, 物种多样性

Abstract: The species diversity of Dipentodon sinicus communities in Yushe National Forest Park of Guizhou province was studied based on the quadrate method. The results showed that Rosaceae, Ericaceae, Betulaceae, Fagaceae, Theaceae, Lauraceae, Caprifoliaceae, Cornaceae were the dominant families in D. sinicus communities of Yushe National Forest Park. In the 10 sample plots, there were 8 which were absolutely dominated with D. sinicus population, the importance value came up to 135.69 on average, and it was far higher than the others. For D. sinicus communities, the abundance index (2.847), Simpson index (0.601), Shannon-Wiener index (1.523), probability of inter-specific encounter (0.601) and species evenness (0.569) of the tree layer were lower than those of the shrub layer (5.580, 0.830, 2.377, 0.829, 0.672, respectively) on the whole. It markedly showed a species diversity characteristic of the mixed broadleaved evergreen and deciduous forest in middle subtropics. In the 10 sample plots, the species diversity level of Q1 (the first sample plot) was the highest, followed by Q3, Q5 and Q6 was the lowest. The species diversity indexes of the 10 communities decrease in the order of Q1>Q3>Q9>Q7>Q2>Q4>Q10>Q8>Q5>Q6.

Key words: Dipentodon sinicus, Yushe national forest park of Guizhou province, rare plant, community, species diversity

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