<正>通过对活立木采用Pilodyn无损检测仪进行野外测试，并与用实验室测定的木材基本密度、木材管胞长度和宽度比较。结果表明：华山松南北方向上Pilodyn探测值没有显著差异，与木材外侧基本密度、木材基本密度得到的检验结果一致。探测值与木材外侧基本密度及木材基本密度实测值间存在极显著的相关关系；多元线性回归方程中，木材密度的贡献率最大52.86％～63.74％。通过一元线性回归方法建立Pilodyn探测值估测木材密度的模型。Pilodyn测定值不仅能估测华山松外侧木材基本密度，同时也能够估测华山松整个径向的木材基本密度。

According to the purpose of forest ecosystem management, the six spatial structure were created. The decision model on forest ecosystem management was constructed to reach the goal of climax community and meet the purpose of maintaining health and functions standing of forest ecosystems. The characters of uniform distribution of trees in forest ecosystems was set in the model. In practice, the spatial structures, health and functions of forest ecosystem could be improved intensively by the decision model.