四川农业大学学报 ›› 2015, Vol. 33 ›› Issue (03): 265-269.doi: 10.16036/j.issn.1000-2650.2015.03.004

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浙江省江郎山岩生植物的生态位特征

沈年华1,2, 李传磊2,3, 周园园2, 王小德2   

  1. 1. 苏州旅游与财经高等职业技术学校, 江苏 苏州 215104;
    2. 浙江农林大学风景园林与建筑学院, 浙江 临安 311300;
    3. 无锡开放大学, 江苏 无锡 214011
  • 收稿日期:2015-07-11 出版日期:2015-09-30 发布日期:2017-02-28
  • 通讯作者: 李传磊,硕士,讲师,主要从事园林教学与研究,E-mail:chuanleili@126.com。 E-mail:chuanleili@126.com
  • 作者简介:沈年华,硕士研究生,讲师,主要从事植物资源与植物生态研究,E-mail:nianhuashen@163.com。
  • 基金资助:
    浙江省重大科技攻关项目(2006C112061);浙江省林业厅项目(2002A18)

Niche Characteristics of Rock Plants in the Jianglang Mountain, Zhejiang Province

SHEN Nian-hua1,2, LI Chuan-lei2,3, ZHOU Yuan-yuan2, WANG Xiao-de2   

  1. 1. Suzhou Tourism and Finance Institute, Suzhou 215104, Jiangsu, China;
    2. School of Landscape Architecture, Zhejiang A & F University, Liffan 311300, Zhejiang, China;
    3. Wuxi Open University, Wuxi 214011, Jiangsu, China
  • Received:2015-07-11 Online:2015-09-30 Published:2017-02-28

摘要: [目的] 研究江郎山岩生植物种群间的相互关系,为该地岩生植物资源的保护和可持续利用提供依据。[方法] 在调查的基础上,应用Shannon-Wiener公式、Schoener公式和Pianka公式,对16个岩生植物种群的生态位宽度、生态位相似性比例和生态位重叠进行了计算和分析。[结果] 生态位宽度最大的是山类芦(1.986),其他依次为地笋(1.618),前胡(1.560),卷柏(1.515),饭包草(1.489),滴水珠(1.477),野百合(1.308),浙皖粗筒苣苔(1.236),凹叶景天(1.199),小沼兰(1.186),香花崖豆藤(1.168),透茎冷水花(1.121),石韦(1.057),苦苣苔(1.015),大叶火焰草(0.910)和虎耳草(0.856)。Schoener生态位相似性比例表明,Cih≥0.5的种对仅有20个,占总对数的16.7%。Pianka生态位重叠值表明,Oih≥0.5的种对仅有35个,占总对数的29.2%。优势种山类芦与其他种的生态位相似性比例和生态位重叠分别在0.32~0.57和0.29~0.82之间。[结论] 物种之间对资源的需求趋同性不高,对资源的偏向性和生态位分化趋势存在。山类芦在群落中的优势明显,其他种并不构成竞争威胁。

关键词: 岩生植物, 生态位宽度, 生态位相似性比例, 生态位重叠

Abstract: [Objective] The aim of the study was to study the relationship among rock plants on Jianglang mountain, and to provide a basis for resources protection and sustainable utilization. [Method] Based on the investigation, niche breadth, niche proportional similarity and niche overlap values of 16 rock plants were calculated with Shannon-Wiener, Schoener and Pianka formulas. [Results] Neyraudia montana had the largest niche breadth (1.986), followed by Lycopus lucidus (1.618), Peucedanum praeruptorum (1.560), Selaginella tamariscina (1.515), Commelina bengalensis (1.489), Pinellia cordata (1.477), Crotalaria sessiliflora (1.308), Briggsia chienii (1.236), Sedum emarginatum (1.199), Malaxis microtatantha (1.186), Millettia dielsiana (1.168), Pilea pumila (1.121), Pyrrosia lingua (1.057), Conandron ramondioides (1.015), Sedum drymarioides (0.910)and Saxifraga stolonifera (0.856). There were only 20 species pairs (16.7% of the total pairs)with Cih≥0.5 by the calculation from Schoener. There were only 35 species pairs with Oih according to Pianka value, which accounted for 29.2% of the total pairs. The value of N. montana versus others ranged from 0.32 to 0.57 and from 0.29 to 0.82, respectively. [Conclusion] The similarity of resource requirement was low and the trend of niche differentiation existed in species. The dominant status of N. montana was obvious and other species did not affect it.

Key words: rock plant, niche breadth, niche proportional similarity, niche overlap

中图分类号: 

  • S718.5