大叶相思材积和生物量表的编制*

为探索大叶相思生物量和材积表编制方法，本文根据薪材林研究中收集的一些样木资料，选用Ｗ（Ｖ）１＝ａＤｂ（下称１式）和Ｗ（Ｖ）２＝ａ（Ｄ２Ｈ）ｂ（下称２式）两种模型，经回归分析推导出两组干、枝、叶和总生物量及材积的回归方程。对两组回归方程分析比较结果，１式自变量Ｄ容易测定且精度高，故以１式作为编表模式，编制成材积表和各组分的生物量表。

EStablishment of Biomass and Volume Tables for Acacia auriculiformis

In order to find out the simple method for estimation of biomass and volumeprdocuction of Acacia auriculiformis plantations, this paper selected two models of W(V)1=aDb and W(V)2=a(D2H)b to establish two groups of regression equations that can be usedfor the estimation of the biomass,components(stem,branch and leaf),total above groundbiomass and volume production based on the data of sample trees collected in the fuelwoodresearch.Comparison of the two groups of equations showed that the first model was thebest fit model.Its precision was high and its independent variable(D)was an easy-to-mea-sure parameter that can further improve the precision of estimation.So the biomass andvolume tables were established based on the regression equation drawn from the first model.