摘要
该文通过530林杨树立木调查资料,分别采用8种模型进行回归拟合,经过误差比较与精度分析,选出V+C1+C2D+C3D2+C4DH+C5D3H+C6H作为杨树二元立木材积方程模型,供编制立木材积表与科研生产中使用。
Abstract Based on the data of 530,Stumpages we have compared the errors and precisions among the usedeight sorts of model, and select cul the model V + C1 +C2D+ C2D2 + C4DH + C5D2H + C6H as the volumeequation of South Poplar stumpage.Subject Words: Poplar, Stumpape Volume,fitting
出处
《湖北林业科技》
北大核心
1996年第2期30-32,共3页
Hubei Forestry Science and Technology