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李菁, 陈功锡, 朱杰英, 李鹄鸣. 湘西北蜡梅群落主要种群生态位的初步研究[J]. 植物科学学报, 2000, 18(2): 109-114.
引用本文: 李菁, 陈功锡, 朱杰英, 李鹄鸣. 湘西北蜡梅群落主要种群生态位的初步研究[J]. 植物科学学报, 2000, 18(2): 109-114.
Li Jing, Chen Gongxi, Zhu Jieying, Li Huming. A PRELIMINARY STUDY ON THE NICHE OF THE MAIN TREE POPULATIONS OF CHIMONANTHUS PRAECOX COMMUNITY IN NORTHWESTERN HUNAN PROVINCE[J]. Plant Science Journal, 2000, 18(2): 109-114.
Citation: Li Jing, Chen Gongxi, Zhu Jieying, Li Huming. A PRELIMINARY STUDY ON THE NICHE OF THE MAIN TREE POPULATIONS OF CHIMONANTHUS PRAECOX COMMUNITY IN NORTHWESTERN HUNAN PROVINCE[J]. Plant Science Journal, 2000, 18(2): 109-114.

湘西北蜡梅群落主要种群生态位的初步研究

A PRELIMINARY STUDY ON THE NICHE OF THE MAIN TREE POPULATIONS OF CHIMONANTHUS PRAECOX COMMUNITY IN NORTHWESTERN HUNAN PROVINCE

  • 摘要: 根据样地调查所获得的基本数据, 运用Levin公式和百分率相似公式分别计测了湘西北蜡梅群落中9个种群的生态位宽度、生态位相似性比例和它们之间的生态位重叠值。结果表明, 生态位宽度从大到小依次为蜡梅、香叶树、八角枫、黄连木、崖花海桐、鸡仔木、利川润楠、珊瑚朴和樱桃。蜡梅与其他各种群的生态位相似性比例不高, 生态位重叠值较低, 说明它与其他种群之间对资源的竞争并不十分激烈, 因而能够成为湘西北蜡梅群落中利用资源能力和生态适应性最强的优势种群, 并在维持群落的物种多样性和相对稳定性中发挥重要作用。

     

    Abstract: Based on the data from the field investigation, the Levin formula and the niche proportional similarity formula were used to calculate the niche breadth, niche proportional similarity and the niche overlaps among nine populations of Chmonanthus praecox community in Northwestern Hunan Province.The result shows that the order of niche breadth is: Chimonanthus praecoxLindera communisAlangium chinensisPistacia chinensisPittosporum truncatumAdina racemosaMachilus lichuanensisCeltis jullunaePrunus pseudocerasus.The niche proportional similarities and the nich overlaps among Chimonanthus praecox and other populations are low.The competition for resources is not intensive.Chimonanthus praecox became dominart species and plays an important role in the maintenance of the diversity and stability of the community.

     

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