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林业资源管理 ›› 2008›› Issue (5): 90-94.doi: 10.13466/j.cnki.lyzygl.2008.05.013

• 科学技术 • 上一篇    下一篇

塞罕坝落叶松人工林下植物多样性研究

于景金1, 谷建才1, 李校2, 张锁成1, 王雄宾3, 项广瑞1   

  1. 1.河北农业大学,河北 保定 071000;
    2.中国地质大学长城学院,河北 保定 071000;
    3.北京林业大学,北京 100083
  • 收稿日期:2008-06-10 修回日期:2008-09-22 出版日期:2008-10-28 发布日期:2020-12-08
  • 通讯作者: 谷建才,男,河北农业大学教授,主要从事森林经理学方面的研究。
  • 作者简介:于景金,(1983-),女,内蒙赤峰人,河北农业大学在读研究生,主要研究方向为森林经营与资产评估。Email:jingjinyu@126.com

Study on Plant Diversity of the Larch Plantation in Saihanba

YU Jingjin, GU Jiancai, LI Xiao, ZHANG Suocheng, WANG Xiongbin, XIANG Guangrui   

  1. 1. Agricultural University of Hebei,Baoding 071000,Hebei Province,China;
    2. Great Wall College,China University of Geosciences,Baoding 071000,Hebei Province,China;
    3. Beijing Forestry University,Beijing 100083,China
  • Received:2008-06-10 Revised:2008-09-22 Online:2008-10-28 Published:2020-12-08

摘要: 为了确定落叶松人工林中不同因子对林下草本植物多样性的影响,在塞罕坝机械林场对林下草本植物展开调查。通过对调查资料进行相关分析和逐步回归,得出不同生境因子和林分因子对草本物种丰富度、多样性指数及均匀度指数的影响程度。结果表明:1) 生境因子中海拔对丰富度指数S正相关显著,对多样性指数和均匀度指数相关性不显著;坡向与各指数均不显著;坡度与Simpson多样性指数D及基于Simpson多样性的均匀度指数Jsi负相关极显著,对Shannon-Wiener多样性指数H及基于Shannon-Wiener多样性的均匀度指数Jsw负相关显著,说明坡度对Simpson指数的影响甚于Shannon-Wiener指数。2) 林分因子中林分密度和郁闭度均对H及Jsw正相关极显著,对Jsi正相关显著,说明落叶松人工林林分密度和郁闭度对Shannon-Wiener指数的影响比对Simpson指数的影响更敏感;林龄对S及H正相关极显著,对Jsw正相关显著。

关键词: 物种丰富度, 多样性指数, 物种均匀度, 落叶松人工林, 相关分析, 逐步回归

Abstract: The investigation was conducted from July to August in Saihanba Forest Farm in order to determine how the different factors of the larch plantation affect the plant diversity.On the basis of statistics of investigation data,effects of different factors on species richness,evenness and plant diversity were discussed.The results showed that altitude had significant positive correlation with S.Aspect had no relations withother factors.Slope had more significant positive correlation with D and Jsi than H and Jsw.The results demonstrated that the effects which were caused by slope were more sensitive to Simpson indexes.Density and cannopy density had more sensitive effects on Shannon-Wiener indexes than Simpson indexes.Age had significant positive correlation with S and H,but not Jsw.

Key words: species richness, plant diversity, evenness, Larch plantation, correlation, stepwise regression

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