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生态学杂志 ›› 2010, Vol. 29 ›› Issue (01): 1-7.

• 研究报告 •    下一篇

也论“田中线”及其生物地理意义

冯建孟1**;朱有勇2,3   

  1. 1大理学院生命科学与化学学院, 云南大理,671000;2云南农业大学农业生物多样性应用技术国家工程研究中心,昆明 650201;3农业生物多样性和病虫害控制教育部重点实验室,昆明 650201
  • 出版日期:2010-01-08 发布日期:2010-01-08

Tanaka Line and its biogeographical significance: A further discussion.

FENG Jian-meng1;ZHU You-yong2,3
   

  1. 1Department of Life Science and Chemistry, Dali University, Dali 671000, Yunnan, China;2The National Center for Agricultural Biodiversity in Yunnan Agricultural University, Kunming 650201, China;3Ministry of Education Key Laboratory of Agricultural Biodiversity for Plant Disease Management, Kunming 650201, China
  • Online:2010-01-08 Published:2010-01-08

摘要: 利用大尺度的植物区系分布信息,通过统计检验,验证了“田中线”存在的真实性及其新的生物地理意义。结果表明:“田中线”对中国日本植物区系分布类型、东亚植物区系分布区类型和热带亚洲区系分布类型在云南的分布均具有严格的限制意义,但对中国喜马拉雅植物区系分布类型的分布缺乏严格的限制;同时, 我们首次发现该生物地理对角线可能对中国特有属在云南的分布具有显著的限制作用;本研究不能证明“田中线”对云南地区种子植物区系成分的地理分布具有全局性的限制意义,有关“田中线”的真实性及其生物地理意义的研究有待进一步深入。

关键词: 树木根系, 衰老, 环境因子

Abstract: Based on the information about the distribution of seed plant flora inlarge scale, and through statistical analysis, the reality of Tanaka Line’s existence and its biogeographical significance were examined. The Tanaka Line had significance in the strict limitation on the geographical distribution of SinoJapan flora, East Asia flora, and Tropical Asia flora in Yunnan, but less significance on the distribution of SinoHimalayan flora. The authors first found that the distribution of China’s endemic flora in Yunnan was possibly limited by the Tanaka Line. It was observed that the Tanaka Line did not shape the overall spatial patterns of seed plant flora in Yunnan. The Tanaka Line and its bio-geographical significance needed further exploration.

Key words: Tree roots, Senescence, Environmental factors