基于森林资源清查资料的林分生物量相容性线性模型

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

摘要: 该文以甘肃省小陇山锐齿栎林分为例,通过图形分析、相关分析和回归分析,结果表明:小陇山锐齿栎林分乔木层各组分生物量(W)与林分活立木蓄积量(V)、与林分平均胸径、平均树高和林分密度(D²HN)均存在极其显著的线性相关关系.采用代数和法,分2级控制,建立了林分乔木层各组分生物量(W)与林分活立木蓄积量(V)与林分平均胸径、平均树高和林分密度(D²HN)两种形式的生物量相容性线性模型,以95%的可靠性估计,两种形式的模型对锐齿栎林分各组分生物量的预估精度均在98%以上.

Abstract: 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.