欢迎访问《应用生态学报》官方网站,今天是 分享到:

应用生态学报 ›› 1999, Vol. 10 ›› Issue (5): 521-524.

• 研究论文 • 上一篇    下一篇

缙云山森林次生演替序列群落的物种多样性动态

郭全邦1, 刘玉成2, 李旭光2   

  1. 1. 河北省科学院地理研究所, 石家庄050011;
    2. 西南师范大学生命科学系, 重庆630715
  • 收稿日期:1997-08-22 修回日期:1997-12-30 出版日期:1999-09-25 发布日期:1999-09-25
  • 通讯作者: 郭全邦,男,30岁,硕士,主要从事应用生态方面的研究,发表论文10篇.
  • 基金资助:

    国家自然科学基金资助项目(39570130).

Dynamics of species diversity in secondary succession series of forest communities in Jinyun Mt

Guo Quanbang1, Liu Yucheng and Li Xuguang2   

  1. 1. Institute of Geography, Hebei Province Academy of Sciences, Shijiazhuang 050011;
    2. Department of Life Sciences, Southwest China Normal University, Chongqing 630715
  • Received:1997-08-22 Revised:1997-12-30 Online:1999-09-25 Published:1999-09-25

摘要: 通过1986和1996年对缙云山森林次生演替系列群落的重复调查,运用构成指数对这些群落进行演替排序,研究缙云山森林次生演替过程中的物种多样性动态。结果表明,构成指数(CI)可适当改变空间代替时间的局限;在缙云山森林次生演替过程中,物种丰富度呈先变大后变小的趋势,物种均匀度没有明显的动态规律,这与种间(内)关系密切相关,因而适当干扰有利于群落内物种多样性的增大.

关键词: 构成指数, 物种多样性, 风成沉积物, 跃移, 绿洲-沙漠过渡带, 粒度

Abstract: Based on the investigations on the secondary succession series of forest communities in Jinyun Mt. in1986 and 1996, the composition index (CI) was used to process the ordination of community succession, and to study the dynamics of species diversity. The result shows that CIwould solve the problem resulted from the substitution of time with space. In the course of forest secondary succession, the species richness tended to increase at the early stage, and then to reduce; while the species evenness did not show any obvious dynamics, which was related to the intraspecific and interspecific relations. Therefore, moderate disturbance could increase species diversity in communities.

Key words: Composition index, Species diversity, grain size, saltation, oasis-desert ecotone, aeolian deposit