文献类型：期刊文献

英文题名：Physical and Mechanical Properties of Catalpa bungei Clones and Estimation of the Properties by Near-Infrared Spectroscopy

作者：Wang, Rui[1] Shi, Lanlan[1] Wang, Yurong[1]

第一作者：Wang, Rui

机构：[1] Research Institute of Wood Industry, Chinese Academy of Forestry, Beijing, 100091, China

年份：2022

卷号：10

期号：12

起止页码：3285-3302

外文期刊名：Journal of Renewable Materials

收录：EI(收录号：20222912377806);Scopus(收录号：2-s2.0-85134227618)

语种：英文

外文关键词：Cloning - Compressive strength - Density (specific gravity) - Forecasting - Infrared devices - Near infrared spectroscopy - Wood

摘要：Air-dry density, modulus of rupture (MOR), modulus of elasticity (MOE), compressive strength parallel to grain, and hardness of Catalpa bungei clones were investigated in this study with feasibility of predicting these properties by near-infrared (NIR) spectroscopy. The best candidate ‘Luoqiu 3’ has been selected from three clones based on wood physical and mechanical property indices. Lower values of wood physical and mechanical properties have been found in the corewood compared to the outerwood. There were significant positive correlations between the air-dry density and mechanical properties. Information from cross section for air-dry density, compressive strength parallel to grain, and hardness yielded prediction models with better effects, along with the best MOR and MOE modeling effects resulted from average sections’ spectra collection. Multiplicative scatter correction (MSC) + Savitzky-Golay (S-G) smoothing method has been proved to be the most applicable way. In addition, the predictions from five-point sampling method were slightly better than three-point one. Overall, results suggest NIR spectroscopy was viable to predict the physical and mechanical properties of C. bungei clones with methods developed in this study proved effective in preliminary screening. ? 2022, Tech Science Press. All rights reserved.