Variation in wood physical properties and effects of climate for different geographic sources of Chinese fir in subtropical area of China

Abstract Chinese fir is one of the most important commercial timber species in China, with many geographic sources. However, little is known of the variation in wood physical properties among them. To explore the differences in wood physical properties and their influencing factors, five geographic...

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Autores principales:	Ren You, Ninghua Zhu, Xiangwen Deng, Jing Wang, Fei Liu
Formato:	article
Lenguaje:	EN
Publicado:	Nature Portfolio 2021
Materias:	Medicine R Science Q
Acceso en línea:	https://doaj.org/article/26d59ea0c41444dc99f6bdc933e96979
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spelling	oai:doaj.org-article:26d59ea0c41444dc99f6bdc933e969792021-12-02T13:35:05ZVariation in wood physical properties and effects of climate for different geographic sources of Chinese fir in subtropical area of China10.1038/s41598-021-83500-w2045-2322https://doaj.org/article/26d59ea0c41444dc99f6bdc933e969792021-02-01T00:00:00Zhttps://doi.org/10.1038/s41598-021-83500-whttps://doaj.org/toc/2045-2322Abstract Chinese fir is one of the most important commercial timber species in China, with many geographic sources. However, little is known of the variation in wood physical properties among them. To explore the differences in wood physical properties and their influencing factors, five geographic sources of Chinese fir were selected. The variance inflation factor, stepwise regression, and principle component analysis were used to reduce multicollinearity and dimensions of the 19 wood physical properties (including density, shrinkage, and mechanical properties). The results showed that the wood density differed significantly among five geographic sources. The tangential shrinkage rate and radial shrinkage rate reached maximum values in black-heart Chinese fir (HNYX-T) but accompanied by the lowest value for difference dry shrinkage. The wood density and mechanical properties of HNYX-T was exceeded to that of others geographic sources. Fast-growth Chinese fir (FJYK-P) had the lowest value for all mechanical properties. The precipitation and temperature had significant correlations with the wood physical properties of this five geographic sources. The temperature in summer was mainly positive correlated with physical properties, while precipitation was negatively correlated with them. HNYX-T had the highest comprehensive score of PCA, followed by JXCS-R, emerged as higher-quality geographic source, which is important for selecting and utilizing geographic sources in forest management.Ren YouNinghua ZhuXiangwen DengJing WangFei LiuNature PortfolioarticleMedicineRScienceQENScientific Reports, Vol 11, Iss 1, Pp 1-11 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	Medicine R Science Q
spellingShingle	Medicine R Science Q Ren You Ninghua Zhu Xiangwen Deng Jing Wang Fei Liu Variation in wood physical properties and effects of climate for different geographic sources of Chinese fir in subtropical area of China
description	Abstract Chinese fir is one of the most important commercial timber species in China, with many geographic sources. However, little is known of the variation in wood physical properties among them. To explore the differences in wood physical properties and their influencing factors, five geographic sources of Chinese fir were selected. The variance inflation factor, stepwise regression, and principle component analysis were used to reduce multicollinearity and dimensions of the 19 wood physical properties (including density, shrinkage, and mechanical properties). The results showed that the wood density differed significantly among five geographic sources. The tangential shrinkage rate and radial shrinkage rate reached maximum values in black-heart Chinese fir (HNYX-T) but accompanied by the lowest value for difference dry shrinkage. The wood density and mechanical properties of HNYX-T was exceeded to that of others geographic sources. Fast-growth Chinese fir (FJYK-P) had the lowest value for all mechanical properties. The precipitation and temperature had significant correlations with the wood physical properties of this five geographic sources. The temperature in summer was mainly positive correlated with physical properties, while precipitation was negatively correlated with them. HNYX-T had the highest comprehensive score of PCA, followed by JXCS-R, emerged as higher-quality geographic source, which is important for selecting and utilizing geographic sources in forest management.
format	article
author	Ren You Ninghua Zhu Xiangwen Deng Jing Wang Fei Liu
author_facet	Ren You Ninghua Zhu Xiangwen Deng Jing Wang Fei Liu
author_sort	Ren You
title	Variation in wood physical properties and effects of climate for different geographic sources of Chinese fir in subtropical area of China
title_short	Variation in wood physical properties and effects of climate for different geographic sources of Chinese fir in subtropical area of China
title_full	Variation in wood physical properties and effects of climate for different geographic sources of Chinese fir in subtropical area of China
title_fullStr	Variation in wood physical properties and effects of climate for different geographic sources of Chinese fir in subtropical area of China
title_full_unstemmed	Variation in wood physical properties and effects of climate for different geographic sources of Chinese fir in subtropical area of China
title_sort	variation in wood physical properties and effects of climate for different geographic sources of chinese fir in subtropical area of china
publisher	Nature Portfolio
publishDate	2021
url	https://doaj.org/article/26d59ea0c41444dc99f6bdc933e96979
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Variation in wood physical properties and effects of climate for different geographic sources of Chinese fir in subtropical area of China

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