生物多样性 ›› 2007, Vol. 15 ›› Issue (4): 437-444.doi: 10.1360/biodiv.060251

• 论文 • 上一篇    

尖峰岭自然保护区扩大区域植物多样性研究

欧芷阳, 杨小波* , 吴庆书   

  1. (海南大学热带生物中心, 海口 570228)
  • 收稿日期:2006-10-26 修回日期:2007-06-16 出版日期:2007-07-20

Species diversity of natural forests in the enlarged area of Jianfengling National Nature Reserve, Hainan Island

Zhiyang Ou, Xiaobo Yang* , Qingshu Wu   

  1. Tropical Biological Center, Hainan University, Haikou 570228
  • Received:2006-10-26 Revised:2007-06-16 Online:2007-07-20

尖峰岭自然保护区2002年由省级上升为国家级自然保护区, 面积由原来的7,762 hm2增加至20,170 hm2。为建立一个比较完善的国家级自然保护区管理体系, 海南大学于2003年10月通过路线调查与标准样方相结合的方法对保护区扩大区域展开了植被资源调查工作。本次调查共记录到43种尖峰岭地区新记录种, 其中黄毛马兜铃(Aristolochia fulvicoma)、海南地不容(Stephania hainanensis)、卵叶石笔木(Tutcheria ovalifolia)、蜜茱萸(Melicope patulinervia)和南烛(Lyonia ovalifolia)等5种为海南特有种。在本次调查的9,600 m2天然林标准样方中共记录到高1.5 m以上的立木3,466株398种, 隶属于69科161属。在扩大区域内共有国家级珍稀濒危和保护植物41种, 其中国家I级保护植物4种, 新记录到的尖峰岭地区国家级濒危植物2种, 即毛茶(Antirhea chinensis)和琼棕(Chuniophoenix hainanensis), 并基本确定了这些植物的垂直分布状况。扩大区域热带低地雨林、热带山地雨林、热带山顶矮林3种群落类型的物种多样性指数均较高, 且Simpson指数(D)及Shannon-Wiener指数(H')均是热带山地雨林>热带低地雨林>热带山顶矮林; 均匀度则是热带山地雨林>热带山顶矮林>热带低地雨林。表明经过多年封山育林及实施天然林保护工程, 扩大区域内曾经受过强烈干扰的热带低地雨林和山地雨林已经得到了很好的恢复。

Jianfengling Nature Reserve has been enlarged from 7,762 hm2 to 20,170 hm2 since it was approved as a national nature reserve in 2002. For planning conservation strategies, Hainan University carried out fieldwork to investigate plant species diversity of the enlarged area in October 2003. Forty-three species were recorded for the first time in the Jianfengling region, including five species endemic to Hainan Island, namely Aristolochia fulvicoma, Stephania hainanensis, Tutcheria ovalifolia, Melicope patulinervia, and Lyonia ovalifolia. In 9,600-m2 standard plots of natural forests established in this investigation, 398 species including 3,466 standing trees with height≥1.5 m were recorded, belonging to 161 genera and 69 families. In this area, 41 species were in the list of national endangered and protected plants, and their vertical distribution was described. Among them, Antirhea chinensis and Chuniophoenix hainanensis were newly recorded in Jianfengling forests, and four species were listed as national Class I key-protected plants. In the tropical low-land rainforest, indices of Simpson (D), Shannon-Wiener (H') and Evenness (E) were 0.9446, 5.696 and 0.7697, respectively, while for tropical montane rainforest, D, H'and E were 0.9885, 6.9619 and 0.8807, respectively, and those of tropical montane dwarf forest were 0.9405, 4.7110 and 0.8737, respectively. The results showed that the tropical low-land and montane rainforest in the enlarged area had been restored well after many years of protection.

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