| 植物群落中生态位重迭的计测 |
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| 引用本文： | 王刚.植物群落中生态位重迭的计测[J].植物生态学报,1984,8(4):329-335. |
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| 作者姓名： | 王刚 |
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| 作者单位： | 甘肃省科学院生物研究所 |
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| 摘 要： | 本文阐明了生态位重迭在植物生态学研究中的重要性。指出植物群落中生态位重迭的计测有不同于动物的特殊性，并建议以群落梯度代替生态因子梯度；以生态距离间隔作为生态位重迭计测公式中的加权因子，使生态位重迭的计测简化。以甘肃省马衔山林区的林下草本植物为例，计测各种对间的生态位重迭。计测分两种情况进行：其一，在光照、土壤水分、土壤有机质三维复合生态因子梯度上；其二，在群落梯度上。二者所得结果，进行了比较分析。最后在讨论中指出：计测生态位重迭时，必须区分部分重迭与完全重迭，区分样方和资源位。
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On the Measurement of niche Overlap in Plant Communities |
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| Wang Gang.On the Measurement of niche Overlap in Plant Communities[J].Acta Phytoecologica Sinica,1984,8(4):329-335. |
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| Authors: | Wang Gang |
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| Abstract: | In this paper, the importance of niche overlap to plant ecology is expounded. It is pointed out that the measurement of niche overlap between plant species is distinct from that between animal species.The author suggests that ecological factor gradient should be replaced by community gradient and the interval of ecological distance may be used as weighting factor in the formula for measuring niche overlap. Thus measurement of overlap can be simplified. Taking the herbs growing under the forests of the Mahan Mountain as an example, the author measured the overlaps between species on two different conditions respectively, i. e. first on the gradient of light intensity, soil moisture and organic matter, and then on the community gradient. Both the results were analysed. Finally, the difference between partial overlap and total overlap and that between quadrats and resource states were discussed. |
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