闽北天然阔叶林生长模型的研制及应用

Construction and Application of Stand Growth Model for Natural Broad-leaved Forests in North Fujian

以闽北地区无人为干预的天然阔叶林为对象建立林分生长模型并提出预估方法。当森林经理调查获得小班各林分因子后 ,应用作者研制的林分生长模型及预估方法 ,可以对无人为干预的天然阔叶林小班森林资源数据进行连续预估和动态更新。还以最大密度林分株数和平均胸径存在的幂函数关系为依据 ,提出了林分相对密度指标 ,并从理论上推导出一个自然稀疏模型 ,为掌握林分密度动态和应用生长模型、实现无人为干扰林分的动态预估提供了一条切实可行的途径。

Basing on the natural broad-leaved forest which was not intervened by human beings in the north of Fujian,the growth model for the stand was established and the forecast method was put forwarded.After obtaining each stand factor of the subcompartment in forestry management investigation,the subcompartment forestry resource dates of the former stand can be forecasted continually and renewed dynamically by using the model and the method,the stand relative density index was posed and a natural thin model was put forwarded academically basing on the power function relationship between the stand individual of the maximum density and average breast-height diameter,a practical and possible way was afforded to master the dynamical density of the stand and use the growth model to forecast that stand dynamically.