Chin J Plan Ecolo ›› 1985, Vol. 9 ›› Issue (4): 274-279.

• Research Articles • Previous Articles     Next Articles

Studies on the Measuring Techniques of Interspecific Association of Lower-Subtropical Evergreen-Broadleaved Forests. I. The Exploration and the Revision on the Measuring Formulas of Interspecific Association

Wang Bosun, Peng Shaolin   

  • Published:1985-04-10
  • Contact: Hu Wanyi

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.