基于非线性度量误差的杉木相容性生物量模型

Compatible Tree Biomass Models for Chinese Fir Plantations Based on Nonlinear Measurement Error

以福建将乐国有林场人工杉木生物量实测数据为基础,利用非线性度量误差模型,建立了地上生物量与干材、干皮、树枝和树叶的相容性方程,并对模型的精度和适用性进行了检验。结果表明:非线性度量误差模型方法有效解决了生物量总量与分量之间的相容性问题,建立的相容性方程拟合效果好,预估精度高,可以较全面、客观地反映各分量之间生物量的分配关系。

Based on the tree above-ground biomass data of Chinese fir （ Cunninghamia ianceolata） plantations of Jiangle Forest Farm in Fujian Province, we constructed the compatible tree above-ground biomass equations of tree trunks, bark, bran- ches and foliage by nonlinear measurement error model, and we verified the accuracy and applicability of models. The tree biomass compatibility between total and component was solved effectively by using nonlinear measurement error model. The compatible biomass model for a single tree had a simple structure and high prediction accuracy.The model could completely and objectively reflect the distribution relationship of biomasses among various components.