国有林场树种结构调整及稳定性分析--以湖南省国有武冈林场为例

运用目标规划模型对湖南省国有武冈林场的森林树种结构进行优化,得到其理想的树种结构,然后计算出理想树种结构的信息熵和信息熵相对值,用于评价该场的树种结构稳定性.评价结果表明:该场1990～1999年的树种结构信息熵变化不大,稍有增势,比理想的树种结构信息熵偏小,这说明该场现有的树种结构处于过于有序状态,即,人工干扰过大,会损失某些利用功能.该评价结果可为其森林经营结构的调整提拱科学的参考依据.

Tree Species Structure and Stability Analysis of Wugang State-own Tree Farm

The tree species structure optimization for Hunan State-own Wugang Forest Farm was made by employing objective planning model, and an ideal tree species structure was turn out, and then the informative entropy value and relative information entropy value were calculated to evaluate the forest fram's tree species structure stability. The resuls show that the informative entropy value of the tree species structure changed slightly from 1990 to 1999, and were less than the ideal value, and the existing tree species structure in this tree fram is under over orderly state, i.e. the artificial interference is too heavy, and the forest system may lose some utilizable functions. The results can provide a scientific reference basis for the tree fram in adjusting the forest management structure.