桉树人工林单木材种出材率表的研制

Development of Eucalyptus Robusta Single Timber Species Outturn Table

将在福建省桉树种植区采集的553株样木中2/3样木作为建模样本,1/3样木作为检验样本。以最佳削度方程为基础,结合去皮胸径预估模型、树高级指数模型、去皮材积比模型编制桉树单木材种出材率表。检验样本的适用性检验表明,基于削度方程编制的桉树人工林材种出材率表精度满足要求,可为林业生产应用提供参考依据。

Two thirds of the 553 samples collected from Eucalyptus planting area in Fujian Province were used as modeling samples and one third as testing samples.Based on the best cutting degree equation,combined with the prediction model of DBH,the advanced index model and the volume ratio model of peeled eucalyptus,the yield table of Eucalyptus single wood species was compiled.The applicability of the test sample shows that the accuracy of Eucalyptus plantation timber yield table based on the taper equation meets the requirements,which can provide reference for forestry production and application.