林分价值的密度效应模型及其应用

在同一生长阶段上 ,林分价值随密度增加而上升 ,当密度增加到某一值时达到最高 ,尔后随立木密度的增加而下降 ,这种密度对林分价值的效应规律可用二次效应模型表示。以林分价值的密度二次效应模型为基础 ,采用连续状态的动态规划方法建立林分经营密度模型 ,符合人工林林分生长规律 ,可在林分密度控制和管理中推广应用

A Model of the Density Effect of Stand Value and it''s Application

In the same growth phase, stand value increases with an increase in forest density.When the density reaches a certain level the stand value reaches its highest level,a consequent increase in the density will cause a decrease in stand value.We can use a secondary effect model to show this type of density vs stand value.We can use the secondary effect model as a basis to determine stand value.We use a successive state dynamic programming method to establish a forest management density model.In accordance with artificial forest stand growth law,it can be extended to the application of stand density control and management.