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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Relationships of anatomical characteristics versus shrinkage and collapse properties in plantation-grown eucalypt wood from China

Journal of Wood Science volume 52, pages 187–194 (2006)Cite this article

Abstract

To explore the influence of the basic density on collapse-type shrinkage properties and to quantify the relationships of the main anatomical features with shrinkage and collapse properties, all above-mentioned parameters were determined and analyzed for three species of collapse-susceptible eucalypts, Eucalyptus urophylla, Eucalyptus grandis, and E. urophylla × E. grandis, planted in South China. The correlation coefficients were also determined and the corresponding regression equations were established with the anatomical parameters measured by using multiple linear regression. The results indicated that: (1) basic density was strongly positively linearly related to both unit tangential shrinkage (r = 0.970) and unit radial shrinkage (r = 0.959), weakly positively related to total shrinkage (r = 0.656 and 0.640 for tangential and radial, respectively), and weakly negatively related to residual collapse (r = 0.632 and 0.616 for tangential and radial, respectively). (2) The main factors affecting unit shrinkage were cell wall proportion (WP), microfibril angle (MFA), and double fiber cell wall thickness (DWT); factors playing an important role in total shrinkage were WP, ray parenchyma proportion (RP), and MFA, while RP had the highest effect on residual collapse (r = 0.949 and 0.860 for tangential and radial, respectively). (3) All corresponding regression models obtained were very suitable for the evaluation of relationships between the anatomical parameters and unit shrinkage, total shrinkage, and residual collapse, as measured using a moisture content of 28% as the fiber saturation point for all specimens.

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Authors and Affiliations

  1. United Graduate School of Agricultural Sciences, Ehime University, Matsuyama, 790-8566, Japan

    Yi-Qiang Wu

  2. Department of Forest Resources, Faculty of Agriculture, Ehime University, Tarumi, Matsuyama, 790-8566, Japan

    Kazuo Hayashi & Masatoshi Sugimori

  3. Department of Wood Science and Technology, Central South Forestry University, Changsha, 410000, P.R. China

    Yuan Liu

  4. Department of Wood Science and Technology, College of Material Science and Engineering, Northeast Forestry University, Harbin, 150040, P.R. China

    Yingchun Cai

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  1. Yi-Qiang Wu
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  2. Kazuo Hayashi
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  3. Yuan Liu
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  4. Yingchun Cai
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  5. Masatoshi Sugimori
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Correspondence to Kazuo Hayashi.

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Wu, YQ., Hayashi, K., Liu, Y. et al. Relationships of anatomical characteristics versus shrinkage and collapse properties in plantation-grown eucalypt wood from China. J Wood Sci 52, 187–194 (2006). https://doi.org/10.1007/s10086-005-0751-6

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  • DOI: https://doi.org/10.1007/s10086-005-0751-6

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