湖北省马尾松人工林结构模型的研究

STUDIES ON THE STRUCTURE MODLE OF MASSON PINE IN HUBEI PROVINCE

利用湖北省马尾松人工林的样地资料，选用Ｗｅｉｂｕｌ分布，采用参数预估法建立了湖北省马尾松人工林的直径分布模型；选用修正的Ｒｉｃｈａｒｄｓ函数，采用非线性二乘的Ｍａｒｇｕａｒｄｔ迭代法拟合出湖北省马尾松人工林的树高曲线方程。经检验，两模型精度较高。

On the basis of stand of masson pine in Hubei Province, a diameter distributions modle of masson pine in Hubei Province was established with parameter prodict models by the weibull distributions; based on the revised richards function and used the marquardt iteration, the tree height curve of masson pine in Hubei Province was formulated. Both models were shown to be highly accurate by the test.