尾叶桉类树种二元立木材积模型的编制

Establishment of the Standard Models for Eucalyptus

采用151株建模样本,以山本式固定参数方程和可变参数方程建立了广东省尾叶桉类树种二元立木材积模型,模型自检及59株检验样木验证表明,固定参数模型和可变参数模型两精度符合要求,能满足生产需要,但后者具有更优的适用性能。

The standard models with fixed paramneter equation and variable pmmneters equation of Eucalyptus were established with 151 sampled modeling trees in Guangdong Province. the tested result from 59 sampled trees showed that the precision of the two models based on the fixed parameters or the variable parameters were so high that they can been applied in practice. Furthermore, the variable parameters equation was more effective than the fixed parameters equation.