地理科学 ›› 1994, Vol. 14 ›› Issue (3): 217-224.doi: 10.13249/j.cnki.sgs.1994.03.217

• 论文 • 上一篇    下一篇

青藏高原南部及其毗邻地区沼泽植物区系地理

赵魁义   

  1. 中国科学院长春地理研究所 长春130021
  • 收稿日期:1993-10-01 出版日期:1994-05-20 发布日期:1994-05-20

FLOROGEOGRAPHY OF MIRE PLANTS IN SOUTHERN PART OF QINGHAI-XIZANG PLATEAU AND ITS ADJACENT AREAS

Zhao Kuiyi   

  1. Changchun Institute of Geography, Academia Sinica Changchum 130021
  • Received:1993-10-01 Online:1994-05-20 Published:1994-05-20

摘要: 青藏高原南部及其毗邻地区沼泽植物区系丰富,有220种,归101属,51科.区系地理成分复杂,热带-亚热带成分占8.33%,热带-温带成分占22.71%,温带成分占43.18%,世界广布成分占9.85%,青藏特有成分占14.39%,北极高山成分占1.51%.

Abstract: The southern part of the Qinghai-Xixang (Tibet) Plateau and its adjacent.area sare rich in flora. There are 51 families, 101 genera and 220 species. The geographical compo-sitions of the flora in this region are very complex,they consist of the following geo-graphical elements; tropic-subtropic elements approximating to 8.33% of the entire flora in the region, tropic-temperate elements 22.71% , temperate elements 43. 18%, Cos-mopolitan elements 9.85% ,Qinghai-Xizang endemic elements 14. 39%,north polemoun-tain elements 1.51%. Temperate elements in this region are dominant. The dominant species of mires,Carex lasiocarpa,in this region is also found in northeast China,Finland and northern Amarica. The origin of mires of this region was earlier than northeast China and Finland .This shows that the southern part of the Qinghai-Xizang Plateau and adjacent areas may be the centre of origin and distribution of temperate elements