通过对立木及各组径级水平级的划分，分析了成过熟阔叶林分的资源分布状况及林分状态，为采伐优化设计特别是采伐强度的确定提供了一种有效的方法．结果表明：蓄积量相同的林分，其林分状态差异很大；各组径级水平级、特别是大径木和过熟木径级水平级是确定采伐强度的关键因素 Based on the classification of different stands and the diameter classes, the distribution of resources and stand status of over-mature broad-leaved forest were analyzed, which provided an effective method for the optimization of harvesting design, especially the harvesting intensity. The results showed that: Stands with the same amount of stand had very different stand states; and the runoff level of each grade, especially the large-diameter wood and the over-ripe wood-grade level, were the key factors in determining the harvesting intensity