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作 者 ：王伯荪, 彭少麟

期 刊 ：植物生态学报 1985年 9卷 4期 页码：274-279

关键词：阔叶林；

摘 要 ：本文基于2× 2联列表，应用联结系数、共同出现百分率、点相关系数以及x2统计量度量等常用公式，测定了鼎湖山厚壳桂(Cryptocarya chinensis)群落的15个主要种群的种间联结性。并以半矩阵、全矩阵和星座图等图形表达测定结果。研究结果表明，上述技术均适用于南亚热带常绿阔叶林的种间联结测定。但在一个群落内的种间联结测定是以联结系数和x2统计量较佳，在多个群落间的种间联结测定，共同出现百分率的效果亦较理想。本文较完整地推导了x2统计量度量公式。同时指出当某个种出现频率为100%时，应用某些测式如将b、d值加权为1，效果则更佳。

Abstract:The measured result of interspecific association on the forest communities was analysed in this paper, and the meaning of interspecific association index for ecological researches in the level of species population and community or vegetation also has been pointed out. The association coefficient and the X2 test are suitable for the measurement of interspecific association in lower-subtropical evergreen- broadleaved forests. But the percentage concurrence is suitable for the measurement of interspecific association among many communities in lower-subtropical evergreen-broadleaved forests.If a species frequence is 100%,the b and d values must be weighed as 1, the result will be even better, when the formulas 1–3, 5, 13, and 15 in the paper are used.

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