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云冷杉林是我国重要的森林资源之一，长白山区是云冷杉林类型最多而且分布较广泛的区域，但对它们的结构与动态研究较少。文章根据长白山北坡地区不同海拔高度云冷杉林的２００块标准地资料，对林分的胸径和树高与结构随海拔高度增加而发生变化的状况以及林分林木直径、林木树高与林木株数之间的关系进行了探讨与分析。结果表明：林木直径与林木株数之间存在着幂指数关系，林木树高与林木株数之间亦呈幂指数关系，为今后进一步开展云冷杉林的研究提供一些参考资料，最后对云冷杉林的经营提出了建议。
Spruce-fir forest is one of the most important forest resources in China. Changbai Mountain is the most abundant and widely distributed area of spruce-fir forest, but its structure and dynamics are few. According to 200 standard data of spruce fir forest at different altitudes in northern slope area of Changbai Mountain, the change of DBH and height of tree stand and structure with increasing altitude are analyzed, as well as the change of stand diameter, tree height and number of trees The relationship between the discussion and analysis. The results showed that there was a power-exponential relationship between the diameter of forest tree and the number of forest trees, the exponential relationship between tree height and the number of trees, which provided some reference materials for further research on spruce-fir forest. Finally, Management made recommendations.