[an error occurred while processing this directive]

Plant Diversity ›› 1987, Vol. 9 ›› Issue (03): 1-3.

• 研究论文 •    

横断山区的湖泊植被

李恒   

  1. 中国科学院昆明植物研究所
  • 出版日期:1987-06-25 发布日期:1987-06-25

THE LAKE VEGETATION OF HENGDUAN MOUNTAINS

Li Hen   

  1. Kunming Institute of Botany, Chinese Academy of Sciences, Kunming 650204
  • Online:1987-06-25 Published:1987-06-25

摘要: 横断山区海拔4200米以上的高原面上分布着数以百计的冰蚀湖泊;4000米以下的山地有十余个断陷构造湖。湖泊中发育着独具特色的水生植被,本文据1976—1985年的实地调查,对横断山脉主要湖泊的生态地理学特征作了分析。共划分出41个相当于群系的群落类型,其中沉水群落就有18个。与长江中下游的大型浅水湖相比,这里的群落类型多样,地理成分复杂。群落分布区类型计有6个,兼有世界广布、旧世界热带分布、北温带分布、东亚分布和北极高山分布的。此外,高山水菲是浮叶水马齿群落等仅为横断山区亚高山和高山地带所特有。横断山区湖泊植被具明显的垂直地带性。根据湖泊群落组成、结构和生态环境的差异,可以划分出5个湖泊植被带,即I.山地亚热带;Ⅱ.山地暖温带;III.高山寒温带;Ⅳ 高山寒带和V.极高山冰雪带。最后,本文报道了横断山区亚高山带和高山带湖泊中杉藻群落,高山水菲群落等8个类型的组成和结构。

关键词: 横断山区, 湖泊植被, 群落类型, 分布区类型

Abstract: There are hundreds of glacial erosion lakes distributing above 4200 m in altitude and more than ten trough fault. lakes below 4000 m on the plateau of Hengduan Mountains, and unique aquatic vegetations have developed in these lakes. On the basis on several field investigation during 1976-l985, the author makes a preliminary analysis for the eco-geographical characteristics of these lakes and classifies their communities, which are far more abundant in number and far more complicated in geographical distribution patterns than that of the larger lakes distri- buting a1ong the middle and lower reaches of the Yangtse river. There are 41 types of aquatic plant communities (equilemt to formatioris), 18 of which are submerged communities.

Key words: Hengduan Mountains