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一、林木直径分布的作用林木株数随径阶分布(以下简称直径分布)资料不仅在计算林分蓄积方面有重要的作用,而且在林木生长量、枯损量、材种计算转换和设计森林经营模型方面也是必不可少的。近年来利用电算技术建立起来的森林资源数据库,为了模拟林分的生长、枯损以及进行森林资源数据更新,预估森林的发展等也需要具备有林木直径分布的信息。
First, the role of forest diameter distribution The number of trees with diameter distribution (hereinafter referred to as the diameter distribution) data not only in the calculation of stand volume accumulation has an important role, but also in the growth of trees, the amount of losses, timber conversion and design of forest management The model is also essential. In recent years, the database of forest resources, which was established by using computer technology, also needs to have the information of the distribution of tree diameter in order to simulate the growth and loss of forest and update the data of forest resources and predict the development of forest.