生物多样性 ›› 2001, Vol. 09 ›› Issue (4): 393-398.doi: 10.17520/biods.2001058

• 论文 • 上一篇    下一篇

中国种子植物物种多样性及其分布格局

应俊生   

  1. (中国科学院植物研究所系统与进化植物学开放研究实验室,  北京 100093)
  • 收稿日期:2001-05-09 修回日期:2001-09-20 出版日期:2001-11-20

Species diversity and distribution pattern of seed plants in China

YING Tsun-Shen   

  1. Laboratory of Systematic and Evolutionary Botany , Institute of Botany , Chinese Academy of Sciences , Beijing 100093
  • Received:2001-05-09 Revised:2001-09-20 Online:2001-11-20

缤纷的中国植物区系包含着大量的特有种,这使中国成为北半球最富植物多样性的国家。其原因一是土地面积辽阔,植物演化历史时间悠久,气候相对稳定。二是中国具有连续完整的热带、亚热带、温带和寒带的植被类型。三是伴随地质构造上的活跃,中国广大陆地受到了强烈的深切和抬升,导致生境复杂多样,使中国成为一个重要的植物物种保存中心、形成中心和进化中心。中国植物多样性的分布是很不均匀的,主要集中分布于中南部,约在20°~35°N之间。在该范围内,我们确定了3个植物多样性热点地区:横断山脉地区、华中地区和岭南地区,它们的植物多样性和特有性程度都很高,其中横断山脉地区尤为突出。

China has an extremely diverse flora with very high levels of endemism that has given China first place in the Northern Hemisphere in floristic richness. A combination of three reasons explains the floristic richness of China. First , the large area , long time for the organisms to evolve and climatic stability of China has made the country an important region of plant diversity in the Northern Hemisphere. Second , China is unique in being the country in the world that includes a region with vegetational continuity betweent ropical , subtropical , temperate , and boreal forests. Third , the tectonically active , highly dissected and elevated geography of China has made the country an important center of surrival , speciation and evolution. The diversity of plant is not uniformly distributed over China , but is concent rated in the south-central part of China which reaches from ca. 20°0′to 35°0′N. The diversity and levels of endemism within three localized hot-spots in south-central China , the Hengduan range ,the C. China and the Lingnan region , are notable in comparison with other regions. The Mt . Hengduan flora in particular is the richest of the three Chinese Hot-spots. However , of all the Hot-spots ,the Hengduan Range. C. China and Lingnan region are most in need of conservation attention.

No related articles found!
Viewed
Full text


Abstract

Cited

  Shared   
  Discussed