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林业资源管理 ›› 2011›› Issue (1): 86-90.

• 科学技术 • 上一篇    下一篇

塞罕坝华北落叶松人工林下草本生态位研究

赵上1, 谷建才1, 习新强2,3, 杨玉梅1, 陈平1, 项广瑞1   

  1. 1.河北农业大学 林学院,河北 保定 071000;
    2.中国科学院植物研究所 植被与环境变化国家重点实验室,北京 100093;
    3.中国科学院 研究生院,北京 100049
  • 收稿日期:2010-10-27 修回日期:2010-11-08 出版日期:2011-02-28 发布日期:2020-12-16
  • 通讯作者: 谷建才,男,河北藁城人,教授,研究方向:林业资产评估与管理。
  • 作者简介:赵上(1985-),女,河北石家庄人,硕士研究生,研究方向:林业资产评估与管理。Email:zhaoshang828@126.com
  • 基金资助:
    "冀北山区典型森林生态系统健康经营技术研究与示范"项目(200804022F)

Research on Larch Forest Herbs Niche in Saihanba

ZHAO Shang1, GU Jiancai1, XI Xinqiang2,3, YANG Yumei1, CHEN Ping1, XIANG Guangrui1   

  1. 1. Hebei Agricultural University,Baoding 071000,Hebei,China;
    2. The State Key Laboratory of Vegetation and Environmental Change,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China;
    3. Graduate University of Chinese Academy of Sciences,Beijing 100049,China
  • Received:2010-10-27 Revised:2010-11-08 Online:2011-02-28 Published:2020-12-16

摘要: 采用样方法进行不同资源位群落调查,计算了塞罕坝地区华北落叶松人工林下草本植物的生态位宽度以及生态位重叠,结果表明:细叶苔草和蒲公英具有较大的生态位宽度,其LNB值分别为1.1851和1.0048,HNB值分别为0.4314和0.2942;除了32.61%的草本生态位宽度(LNB)值为0以外,大部分生态位宽度(LNB)集中在[0.4,0.6),[0.6,0.8)和[0.8,1.0),分别占19.57%,19.57%和15.22%。草本物种间生态位重叠大于0.1的占67.64%,表明落叶松人工林下草本植物之间因利用相同的资源位而产生的种间竞争较为激烈。

关键词: 生态位重叠, Levins生态位宽度, Hurlbert生态位宽度, 群落稳定性

Abstract: This study used plot method for surveying different resource niche community,and calculated herb niche breadth and niche overlap in Larix prinicipis-rapprechii plantation in Saihanba.The results showed that:Carex rigescens and Saussurea taraxacifolia had larger niche breadth,the LNB was 1.1851 and 1.0048,the HNB was 0.4314 and 0.2942 respectively.In addition 32.61% of herb niche breadth(LNB)was 0,most concentrated on [0.4,0.6),[0.6,0.8) and [0.8,1.0),the LNB was 19.57%,19.57% and 15.22% respectively.Herbaceous species niche overlap accounted for 67.64% larger than 0.1,indicating that the herbaceous plants had intense interspecific competition for using same resource niche in Larch plantation.

Key words: Niche overlap, Levins niche breadth, Hurlbert niche breadth, community stability

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