本文评述了群体同工酶基因位点遗传结构研究中的主要度量方法及其在森林树种中的应用概况。
The main methods to characterize population genetic structure at isozyme loci and their applications in forest trees were reviewed.
但森林削减坡面径流与侵蚀的效益与森林树种自身的生物、生态学特性及其林分结构状况等密切相关。
However, the reducing benefits of runoff and erosion of forests has a highly correlation with the tree species' biological, ecological property and its stands structural status.
秀木依依、树种繁多的原始森林是一座真正的宝库，从缅因州向南一直延伸至乔治亚州。
The virgin forest with its richness and variety of trees was a veritable real treasure-house which extended from Maine all the way down to Georgia.
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