乔木种群循环更新的模型及研究进展

Model and Advance in the Research of Cycling Regeneration of Tree Population

在森林动态变化过程中,有一种乔木种群循环更新现象正日益受森林生态学家的重视。对此现象,有的学者认为是循环演替,或周期性演替;而另一些学者认为这属于波动,不能称作演替。前苏联生态学家则称之为乔木种群年龄结构自振荡。提出的概念反映了普利高津的耗散结构理论对生态学研究的渗透,较为全面地解释了森林动态过程中乔木种群循环更新的现象,代表了现代森林动态理论研究的新动向。本文对其研究进行扼要的概述。

The different opinions of cycling regeneration of tree population were introduced in this paper. Based on the theory of system, nature of the model and its advance of population age structure self-oscilla-tion were pointed out, meanwhile, the practical and theoritical significance of its research was analyzed.