天然次生林群落中主要树木种群间联结关系的研究

 本文通过对3个天然次生林群落中几个主要树木种群的RA、RD、RF及IV值的比较分析以及种间联结系数的求算，较深入地研究了各主要树木种群间的相互关系，并通过种间联结星座图对此种关系作了较直观的反映。计算结果表明3个群落类型中大多数种对间都表现出正的或负的联结关系，然而通过X2检验，各种对间的联结关系均未达到极显著的程度，文章对此作了深入的理论分析。本文的研究结果对于分析天然次生林群落结构的形成机制具有重要意义。

STUDY ON THE INTERCONNECTIONS AMONG MAIN TREE POPULATIONS IN NATURAL SECONDARY FOREST COMMUNITIES

The relationships among the populations were investigated through calculating association coefficients as well as comparing RA, RD, RF and IV of main tree populations in three types of the natural secondary forest communities. Such interconnections were described using the diagrams of constellations. The results show that most pairs of the tree populations in the three types of the communities were either positively or negatively associated significantly. The associations were subjected to further theoretical analysis in the present paper. The results are significant for analyzing the inner mechanism whereby the communities are structured.