地理科学 ›› 1990, Vol. 10 ›› Issue (4): 316-325,387.doi: 10.13249/j.cnki.sgs.1990.04.316

• 论文 • 上一篇    下一篇

长白山高山冻原维管植物区系地理

钱宏   

  1. 中国科学院植物研究所, 北京
  • 出版日期:1990-07-20 发布日期:1990-07-20

FLOROGEOGRAPHY OF VASCULAR PLANTS IN ALPINE TUNDRA OF THE CHANGBAI MOUNTAIN

Qian Hong   

  1. Institute of Botang, Academia Sinica, Beijing
  • Online:1990-07-20 Published:1990-07-20

摘要: 本文将长白山高山冻原87属131种维管植物划分成各种区系地理成分,将长白山高山冻原维管植物区系分别与欧洲、亚洲和北关北极冻原进行了对比分析,提出了在最近一次冰期北极冻原在中国东部南迁到41°N左右的观点,认为长白山高山冻原植物区系是在第四纪全新世从北极冻原演化而来。

Abstract: The alpine tundra of the Changbai Mountain is situated in 41°53′42°04′N,127°57′-128°11′E,1950(2000)-2749.2m above sea level.There are 87 genera(gen).and 131 species(sp.)of vascular plants in the alpine tundra.Among them,19 gen.belong to Cosmopolitan Distribution Type(DT),58 gen.and 39 sp.to North Temperate DT,4 gen.and 9 sp.to E.Asia and N.America DT,2 gen.and 6 sp.to Old World(Eurasia)Temperate DT,4 gen.and 7 sp.to Temperate Asia DT,and 70 sp.to E.Asia DT,81 gen.and 58 sp.are shared with arctic tundra of Europe,of which,68 gen.and 27 sp.are shared with the arctic tundra of Europe;66 gen.and 51 sp.are shared with the arctic tundra of Asia;and 80 gen.and 42 sp.are shared with the arctic tundra of N. America.The main features of alpine tundra flora are 1)endemic floristic elements(17 sp.of vascular plants endemic to alpine tundra)are abundant,2)floristic independence(22 gen.and 70 sp.of vascular plants limited in alpine tundra)is great(strong),3)arctic-alpine floristic elements(6 gen.and 43 sp.)are rich.The flora of the alpine tundra in the Changbai Mountain originated from the arctic tundra during the Holocene of the Quaternary(about 12000 years ago).