杉木短轮伐期工业材物理力学性质预测模型的研究

Directive Culture Forecasting Patterns of Physical and Mechanical Chinese Fir Wood

以应用正交试验设计方法对不同林龄、不同立地条件和不同林分密度下人工杉木林木材物理力学性质变异规律的研究为基础，采用多元线性回归方法，建立了用林龄、林分密度、地位指数 ３ 因子预测杉木短轮伐期工业林木材物理力学性质指标的一系列回归方程，并经回归显著性检验。

In view of the study of the law of variation in the physical and mechanical properties of Chinese fir wood from plantations with different ages and densities and grown in diffrent sites by using orthogonal design, the method of pluralistic linear regression was used to establish a series of regressive equations to forecast the index of these properties. Meanwhile, remarkable tests on these regressive equations were carried out. The conclusions provide a scientific basis for directive culture of the quality of short cycled industrial Chinese fir wood.