利用重要值评价森林生态系统稳定性

Appaising stability of a forest ecosystem with significant values

本文利用重要值评价森林生态系统稳定性,得出在红松纯林和云冷杉纯林中,红松和冷杉的重要值都是最大,其它树种的重要值都比较小;在红松混交林和云冷杉混交林中,红松和云杉的重要值均有明显下降,阔叶树的重要值均有明显上升,从而进一步说明混交林自我更新、自我维持、自我调节的能力强,是相对稳定的合理结构。

Stability of a forest ecosystem was appaisied with significant values in this paper, it reveals that significant values of Pinus koraiensis and Abies sp. are the biggest in their respective pure stands, and the other species are smaller. In mixed stands both of Pinus koraiensis and Abies/Spruce, it has a clear decline in significant values of Pinus koraiesis and Spruce Sp., but a apparent rising to all broadleaf species. Research further shows that mixed forests are a structure of the relatively stable and reasonable,which have well reproducing, supporting and regulating functions by themselves.