地理科学 ›› 1982, Vol. 2 ›› Issue (1): 73-82.doi: 10.13249/j.cnki.sgs.1982.01.73

• 研究报导 • 上一篇    下一篇

西藏高原沼泽植被的基本特征

赵魁义   

  1. 中国科学院长春地理研究所
  • 出版日期:1982-01-20 发布日期:1982-01-20

THE CHARACTERISTICS OF SWAMP VEGETATION ON XIZANG PLATEAU

Zhao Kuiyi   

  1. Changchun Institute Of Geography, Academia Sinica
  • Online:1982-01-20 Published:1982-01-20

摘要: 西藏高原位于我国西南边疆,东自横断山脉,西达喀喇昆仑山;南迄喜马拉雅山,北抵昆仑-唐古拉山,平均海拔4000米以上,素称“世界屋脊”,总面积120余万平方公里。在这样独特的自然条件下,沼泽植被的特点,与低海拔沼泽的差异,过去尚无专门的报道。本文在两次西藏考察基础上,试对沼泽植被的基本特征,作一概括的介绍。

Abstract: The characteristics of the swamp on Xizang Plateau,as compared with those of the swamps in other areas,are as follows: 1.The unique components of Qingzang Plateau are prominent in association composition.Kobrecia littledalei is an important component of swamp and it with Blysmus sinocompressus forms the special swamp association.This swamp which isdistributed at the highest location in China is characterised by composition simplicity,short and thick grass,sturcture simplification and short growing season. 2.It is mainly the low herbaceous swamp.Besides Cyperaceal swamp and Graraineal swamp,there appears pure weed swamp which forms unique dicotyledom swamp landscape. 3.The succession of swamp vegetation is showing a tendency of naturaldrying,swamp degradation and area reduction.