东北林区天然混交林的随机生长与演替模拟系统研究

Study on Growth and Succession Imitate System of Natural Mixture Forest in Northeast Wood's Area

从固定样地资料出发 ,构造地位指数函数、胸径生长历程函数、林分枯损函数等基础模型。在林分状态结构的极限分布是在正态分布条件下 ,建立林分状态动态结构的Weibull分布模型。通过建立密度、地位阻尼因子 ,实现基础模型向现行密度、地位模型的非线性过渡。通过定义树种重叠效应系数 ,成功地解决混交林按纯林模型有机的复合。本文以完全或不完全的初始胸径结构文件 ,形成t时刻的各组成树种广义林分结构向量。通过智能化模拟技术 ,重现 16 0年间红松林生长和演替过程 ,并完成区域性森林资源动态实时预测。

Based on the permenent plot data, the basic models such as site index function, diameter growth function, mortality function were develeped. As the stand status limit distribution is normal distribution, Weibull distribution model was built. The basic models were non-linearly transferred to densiti and site model through density and site damp factor.Mixture forest combined with pure forest through species overlay-effect coefficient.General stand structure vector of composition species on t moment were constructed by complete and imcomplete original diameter structure files.Pines growth and succession process were recurred through intelligentize simulate technique and vegional forest resource dynamic was forcasted.