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[1] Altaner, Clemens[2]

第一作者：李彦杰

通信作者：Altaner, Clemens

机构：[1] Research Institute of Subtropical Forestry, Chinese Academy of Forestry, Hangzhou, Zhejiang, 311400, China; [2] School of Forestry, University of Canterbury, Private Bag 4800, Christchurch, New Zealand

年份：2019

卷号：73

期号：6

起止页码：537-545

外文期刊名：Holzforschung

收录：EI(收录号：20190406426020);Scopus(收录号：2-s2.0-85060381908)

语种：英文

外文关键词：Discriminant analysis - Forestry - Infrared devices - Least squares approximations - Mean square error - Near infrared spectroscopy - Solvent extraction - Timber

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. ? 2019 Walter de Gruyter GmbH, Berlin/Boston 2019.