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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Liquid penetration in different cells of two hardwood species

Journal of Wood Science volume 57, pages 179–188 (2011)Cite this article

Abstract

Two experimental techniques were used to test the water permeability of two Korean hardwood species: diffuse porous Populus tomentiglandulosa T. Lee (eunsasi poplar) and ring porous white oak, Quercus serrata Thunb (konara oak). The first technique measured the void volume filled at different moisture content (MC) levels. Samples were treated with water via a schedule of full-cell impregnation. A significant relation between MC and permeability (the fractional void volume) was found. A reduction in liquid permeability was observed at MC above the fiber saturation point (FSP), whereas the opposite result was observed at MC below FSP due to the effect of the voids available in the wood. However, the differences of increased permeability from MC level 20% to 0% were found satistically the same in either wood species. The second technique measured the speed of liquid penetration in vessels, fibers, and rays with no application of external pressure. In this method, liquid flow was captured via video and the penetration speed was measured. Vessels, fibers, and rays in poplar were found to be more permeable than those in oak. Different anatomical factors such as cell diameter, cell length, pit number, pit aperture area, and thickness of the pit membrane seemed to be responsible for the variation of liquid flow rate in different cells of the two hardwood species.

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Authors and Affiliations

  1. Department of Forest Biomaterials Engineering, College of Forest and Environmental Sciences, Kangwon National University, Gangwon-do, Chuncheon, 200-701, Republic of Korea

    Sheikh Ali Ahmed & Su Kyoung Chun

  2. USDA Forest Service, Forest Products Laboratory, Center for Wood Anatomy Research, Madison, WI, 53726-2398, USA

    Regis B. Miller

  3. Department of Forest Resources Utilization, Korea Forest Research Institute, Seoul, 130-712, Republic of Korea

    Song Ho Chong

  4. Kangwon National University, Gangwon-do, Chuncheon, 200-701, Republic of Korea

    Ae Ju Kim

Authors
  1. Sheikh Ali Ahmed
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  2. Su Kyoung Chun
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  3. Regis B. Miller
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  4. Song Ho Chong
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  5. Ae Ju Kim
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Correspondence to Su Kyoung Chun.

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Ahmed, S.A., Chun, S.K., Miller, R.B. et al. Liquid penetration in different cells of two hardwood species. J Wood Sci 57, 179–188 (2011). https://doi.org/10.1007/s10086-010-1168-4

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  • DOI: https://doi.org/10.1007/s10086-010-1168-4

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