Linear models with compatibility of stand biomass based on the forest resource inventory data

Graphic analysis,correlative analysis and regression analysis about Quercus aliena var.acuteserrata plantations in Xiaolong Mountains,Gansu Province were carried out.The results showed that there existed a prominent linear relationship between tree biomass composition(W) and growing stock volume(V) as well as the average trunk diameter,average tree height and stand density(D²HN) of Q. aliena var.acuteserrata plantations in Xiaolong Mountains.Using algebraic sum method,the two linear models with compatibility between W and V as well as average trunk diameter,average tree height and stand density(D²HN) were built from two layers.With 95% reliability estimates,the two models about the wood biomass of Q.aliena var.acuteserrata were over 98% precision in the preliminary estimates.