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应用生态学报 ›› 1999, Vol. 10 ›› Issue (3): 270-274.

• 研究论文 • 上一篇    下一篇

长白山主要生态系统地面藓类植物分布格局研究

郭水良1, 曹同2   

  1. 1. 浙江师范大学生物系, 金华 321004;
    2. 中国科学院沈阳应用生态研究所, 沈阳 110015
  • 收稿日期:1998-11-13 修回日期:1999-01-19 出版日期:1999-05-25 发布日期:1999-05-25
  • 通讯作者: 郭水良,男,34岁,副教授,博士,现为中国科学院沈阳应用生态研究所博士后,主要从事植物生态学、杂草生态学研究,已发表学术论文40多篇.
  • 基金资助:

    中国科学院资源与生态环境研究重点项目(KZ952-J1-022)与中国科学院长白山森林生态系统定位研究站资助项目.

Distribution patterns of moss species on ground in main ecosystems in Changbai Mountains

Guo Shuiliang1, Cao Tong2   

  1. Institute of Applied Ecology, Academia Sinica, Shenyang 110015
  • Received:1998-11-13 Revised:1999-01-19 Online:1999-05-25 Published:1999-05-25

摘要: 基于51个样点3305个样方地面藓类的盖度,应用双向指示种法,将长白山主要生态系统中地面藓类群落分成落叶松沼泽、高山苔原、岳桦林、亚高山过渡林、暗针叶林及红松阔叶林6种类型,这6种生态系统中的地面藓类总盖度分别为80.94%、25.42%、59.83%、26.88%、44.11%和1.67%.在调查的51个样点中,随着土壤pH值下降、含水量上升,地面藓类群落盖度增加,在苔原带以下红松阔叶林以上的森林中,随着冠层郁闭度加大,林下地面藓类盖度下降。地面藓类的生态位宽度(B)与种数(N)的关系符合N=74.6475×e-20.6705×B,除塔藓等少数种类外,大多数藓类的生态幅很窄.

关键词: 藓类植物, 分布格局, 生态学, 生态系统, 环境因子, 岷江柏, 天然种群, 种实, 表型性状

Abstract: Based on the coverages of 86 moss species in51 sites with 3305 samples on ground in Changbai Mountains, six groups of sites including Larix gmelinii-bog, turdra, Betula ermanii forest, transitional forests in sub alpine, dark conifer forest and Pinus koraiensis broad leaved mixed forest were identified using TWINSPAN. The total moss coverage of Larix gmelinii-bog, tundra Betula ermanii forest, transitional forests in sub alpine, dark conifer forest, and Pinus koraiensis broad leaved mixed forest were 26.88%, 80.94%, 25.42%, 59.83%,44.11% and 1.67%, respectively. With the decline of pH and the increase of soil water content, the total moss coverage increased. In the forests between tundra and Pinus koraiensis broad leaved mixed forest, the total moss coverage declined with the canopy coverage. The relationship between the species number (N) and their niche breadth (B) for 86 moss species in51 sites followed the model: N=74.6475×e-20.6705×B. It indicates that the most moss species in Changbai Mountains had very narrow niches.

Key words: Mosses, Distributional pattern, Ecology, Ecosystem, cone and seed, natural population, Cupressus chengiana, phenotypic trait, environmental factor