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应用生态学报 ›› 1995, Vol. 6 ›› Issue (3): 243-250.

• 研究论文 • 上一篇    下一篇

中国东北部种子植物种的地理成分分析

傅沛云, 曹伟, 李冀云   

  1. 中国科学院沈阳应用生态研究所, 沈阳 110015
  • 收稿日期:1995-03-02 修回日期:1995-04-23 出版日期:1995-07-25 发布日期:1995-07-25
  • 基金资助:

    国家自然科学基金

Analysis of geographical elements of seed plant species in northeast China

Fu Peiyun, Cao Wei, Li Jiyun   

  1. Institute of Applied Ecology, Acadrmia Sinica, Shenyang 110015
  • Received:1995-03-02 Revised:1995-04-23 Online:1995-07-25 Published:1995-07-25

摘要: 通过对中国东北部2555种种子植物种的分布进行对比研究,划分之为27个地理成分和34个地理成分亚型,统计分析表明,本地区的种子植物除少数的世界分布种之外,温带、寒带和热带的种数分别占88.5、6.8和4.7%,说明植物区系基本上属温带性质。本地区种子植物中的特有植物共有117种,分属于6个地理成分和4个地理成分亚型之中,其丰富度在国内是较为偏低的。

关键词: 地理成分, 特有种, 植物区系, 种子植物, 溪流鱼类, 主成分分析, 鱼鳍, 爆发游泳速度, 临界游泳速度

Abstract: Through comparing the distribution ranges of 2555 seed plant species in northeast China,their geographical elements can be classified into 27 types and 34 subtypes.Statistical analysis shows that with the exception of a few cosmopolitan species, temperate, cold and tropical species occupy respectively 88.5,6.8 and 4.7%, indicating that the nora is in the nature of temperate.The endemic species of them are 117, belonging to 6 types and 4 subtypes.Their abundance in the region is lower than in most other ones in China.

Key words: Geographical element, Endemic species, Flora, Seed plant, stream fish, critical swimming speed, principal component analysis, burst swimming speed., fin