文献类型：期刊文献

英文题名：Calibration of near infrared spectroscopy (NIRS) data of three Eucalyptus species with extractive contents determined by ASE extraction for rapid identification of species and high extractive contents

作者：Li, Yanjie[2] Altaner, Clemens[1]

第一作者：李彦杰

通信作者：Altaner, C[1]

机构：[1]Univ Canterbury, Sch Forestry, Private Bag 4800, Christchurch, New Zealand;[2]Chinese Acad Forestry, Res Inst Subtrop Forestry, Hangzhou 311400, Zhejiang, Peoples R China

年份：2019

卷号：73

期号：6

起止页码：537-545

外文期刊名：HOLZFORSCHUNG

收录：;WOS:【SCI-EXPANDED(收录号:WOS:000469357200003)】；

基金：This work was funded by the New Zealand Ministry of Business, Innovation and Employment (MBIE) Partnership for Specialty Wood Products (contract FFRX1501).

语种：英文

外文关键词：Eucalyptus argophloia; E. bosistoana; E. globoidea; partial least squares regression (PLSR); PLS-discriminant analysis (PIS-DA); variable selection (sMC)

摘要：Plantations of naturally durable timber species could substitute unsustainably harvested wood from tropical forests or wood treated with toxic preservatives. The New Zealand Dryland Forests Initiative (NZDFI) has established a tree-breeding program to develop genetically improved planting stock for durable eucalyptus plantations. In this study the durable heartwood of Eucalyptus bosistoana, Eucalyptus globoidea and Eucalyptus argophloia was characterized by near infrared (NIR) spectroscopy and NIR data was calibrated with the extractives content (EC), determined by accelerated solvent extraction (ASE) extraction, by means of a partial least squares regression (PLSR) model. It was possible to predict the EC content in the range of 0.34-18.9% with a residual mean square error (RMSE) of 0.9%. Moreover, the three species could also be differentiated by NIR spectroscopy with 100% accuracy, i.e. NIR spectroscopy is able to segregate timbers from mixed species forest plantations.