植物生态学报 ›› 2004, Vol. 28 ›› Issue (2): 231-239.doi: 10.17521/cjpe.2004.0034

• 论文 • 上一篇    下一篇

水盾草入侵群落及其生境特征研究

于明坚, 丁炳扬, 俞建, 金孝锋, 周宏, 叶万辉   

  • 出版日期:2004-02-10 发布日期:2004-02-10
  • 通讯作者: 于明坚

BASIC CHARACTERISTICS OF SUBMERGED PLANT COMMUNITIES INVADED BY CABOMBA CAROLINIANA AND ITS HABITAT IN CHINA

YU Ming-Jian, DING Bing-Yang, YU Jian, JIN Xiao-Feng, ZHOU Hong, YE Wan-Hui   

  • Online:2004-02-10 Published:2004-02-10
  • Contact: YU Ming-Jian

摘要:

水盾草(Cabomba caroliniana)是原产南北美洲的沉水植物,常被作为水族馆植物引种至世界各地,近年来开始入侵我国沉水植物群落。该文通过对其入侵水域19个代表性地点的群落学调查和水质测试,研究其入侵生态系统的基本特征。结果表明:水盾草入侵群落的水域类型均为水流平缓的中小型河流和湖泊,水质大多属中营养化和富营养化。水盾草在所调查的大部分沉水植物群落中基本上为优势种或共优种,并且其重要值与物种数呈显著负相关。群落间相似性系数(Spatz指数)大部分在15%~40%之间,其大小主要与群落种类组成差异

Abstract:
Cabomba caroliniana (common names: Cabomba, Fanwort) is a submerged plant from the USA and South America that was introduced into China in the 1980s as an aquarium plant for its beautiful and finely dissected submerged foliage. Cabomba is now distributed