The tree species structure optimizing result: broadleaved species ascend from 27% to about 50%, needle species decreased, P. Thunbergii area lowed from 62.85% to 33.10%, the integrate proportion of needle and broadleaved species is closed to balance.

• 树种结构优化决策结果是扩大了阔叶树种比重；由原来的27%25左右上升到50%25左右; 降低了针叶树种比重；黑松树种占的面积由原来的62.；85%25下降到33