木荷天然林与人工林群落结构特征比较

Comparison study on community structure features of the natural forest and the plantation of Schima superba

通过样地法群落调查,对木荷林群落学特征进行了分析和研究。研究表明本群落是以山茶科和壳斗科为主的常绿阔叶林,其优势种为木荷、马尾松以及罗浮栲。随着演替的进行,木荷在群落中的重要值呈现先增大后减小的趋势。进一步分析木荷天然林与人工林的生态学差异,表明:木荷天然林和人工林群落物种组成都较丰富,通过木荷人工林与天然林的物种组成比较,可以看出人工林虽然受人为影响较大,但是经过一定时间的恢复,其物种组成和群落结构都趋于复杂化,并在科、属、种组成上与天然林具有较高的相似性。

The study on the features of Schima superba community showed that the community was dominated by Theaceae and Fagaceae families, and its dominant trees were ,Schima superba, Pinus massoniana, and C_o.stanopsis fabri. With the succession of the community, the important value of S. superba became larger, and then became smaller. In the paper the plantation of S. superba was compared with the natural S. superba forest in ecological features. The result showed that both natural forest and plantation of S. superba were abundant in community species composition. The species composition and community structure of the plantation became more complicated after certain period recovering, though it was affected by human activities. The plantation and the natural forest of S. superba had more similarity in the composition of family, genus and species.