亚热带植物科学 ›› 2007, Vol. 36 ›› Issue (02): 27-30.

• 研究报告 • 上一篇    下一篇

湖北黄州龙王山渐尖毛蕨种群分布格局研究

方元平1,王志飞2,项俊1   

  1. 1. 黄冈师范学院 生命科学与工程学院, 湖北 黄州 438000;
    2. 南京农业大学 植物保护学院, 江苏 南京 210095
  • 收稿日期:2006-10-23 出版日期:2007-06-10 发布日期:2007-06-10
  • 作者简介:方元平(1965-),男,湖北罗田人,副教授,从事植物资源生态学研究。
  • 基金资助:

    湖北省教育厅重点项目(2000A47002);黄冈师范学院科学研究项目(2005CB50)

Distribution Pattern of Cyclosorus acuminatus Population in Longwangshan Mountain, Hubei Province

FANG Yuan-ping1, WANG Zhi-fei2, XIANG Jun1   

  1. 1. College of Life Science and Engineering, Huanggang Normal University, Huangzhou 438000, Hubei China;
    2. College of Plant Protection, Nanjing Agricultural University, Nanjing 210095, Jiangsu China
  • Received:2006-10-23 Online:2007-06-10 Published:2007-06-10

摘要: 调查湖北黄冈黄州龙王山渐尖毛蕨在不同生境条件下的种群密度和盖度。采用相邻格子法计算渐尖毛蕨种群分布的偏离系数,并进行t检验,判断种群分布类型;应用双项轨迹方差法分析种群格局规模。结果表明,渐尖毛蕨种群呈集群分布,形成的斑块直径大小约为3.0~3.5 m,且随着干扰的减少,斑块数目呈现少→多→少,其大小呈现大→小→大的变化趋势。

关键词: 渐尖毛蕨, 种群, 分布格局, 相邻格子法

Abstract: The coverage and densities of Cyclosorus acuminatus populations in different habitats was investigated by the successive sampling.The distribution pattern of C. acuminatus was determined according to the calculation of the deviation coefficients and t-test.The results showed that the population of C. acuminatus was observed to be gregarious distribution, with patches of 3.0~3.5 m.The developing trend of C. acuminatus population was estimated.

Key words: Cyclosorus acuminatus, population, distribution pattern, successive sampling

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