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生态学杂志 ›› 1999, Vol. ›› Issue (4): 14-18.

• 研究报告 • 上一篇    下一篇

长白山地区曲尾藓属植物生态分化的排序研究

郭水良2, 曹同1, 丁克强1   

  1. 1. 中国科学院沈阳应用生态研究所, 110015;
    2. 浙江师范大学生物系
  • 收稿日期:1998-12-07 修回日期:1999-01-11 出版日期:1999-08-10
  • 基金资助:
    中国科学院资源与环境重点项目;中国科学院长白山森林生态系统开放研究站资助项目

Application of Ordinations to Study Ecological Differentiation of Dicranum Species(moss)in the Changbai Mountain

Guo Shuiliang2, Cao Tong1, Ding Keqiang1   

  1. Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110015
  • Received:1998-12-07 Revised:1999-01-11 Online:1999-08-10

关键词: 杜鹃红山茶, 种群结构, 分布格局, 聚集强度

Abstract: The relationships of eight moss species of Dicranum in 31 sites in main ecological systems in the Changbai Mountain with environmental factors were studied by canonical correspondence analysis(CCA). The results showed that altitude, soil sand percentage, water percentage, acidity and canopy density were important environmental factors influencing the distribution of the species of Dicranum. The relationships between Dicranum elongatum Schleich. ex Schwaegr., D. groenlandicum Brid. and altitude,between D.japonicum Mitt., D. scoparium Hedw. and canopy density,between D. polysetum Sw., D. undulatum Schrad. ex Brid. and soil acidity and water percentage,were positively correlative. The niche overlaps among the eight species of Dicranum were calculated. The minimal spanning tree of the eight species on the two-dimensional scatter plot were also drawn based on their niche overlaps, which clearly revealed the ecological similarities of eight species.

Key words: Camellia azalea, population structure, distribution pattern, aggregation intensity.