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The Within-tree Variation in Wood Density and Mechanical Properties and Their Relationship in Juniperus polycarpos

Majid Kiaei|Reza Bakhshi|Mohsen Saffari|Sadegh Allameh
산림과학연구소 (The institute of forest science, kangwon national university)|2015.11|Journal of forest and environmental science|제31권 제4호|pp. 267-271

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참고문헌

키워드

densitymodulus of elasticityJuniperus polycarposmodulus of rupture

초록

The variations of wood density and mechanical properties of Juniperus polycarpos trees were studied in a natural forest in Iran. Sample disks were taken from each tree to examine wood density and mechanical properties (MOE and MOR) from pith to bark at breast height, 50%, and 75% of total tree height. The analysis of variance (ANOVA) indicated that radial position and height significantly affected all wood properties. The wood density, MOE and MOR were decreased along horizontal position from the pith to the bark and vertical direction from base upwards. Regression analysis showed that modulus of elasticity (MOE) and modulus of rupture (MOR) had a positive correlation with wood density.

Abstract

The variations of wood density and mechanical properties of Juniperus polycarpos trees were studied in a natural forest in Iran. Sample disks were taken from each tree to examine wood density and mechanical properties (MOE and MOR) from pith to bark at breast height, 50%, and 75% of total tree height. The analysis of variance (ANOVA) indicated that radial position and height significantly affected all wood properties. The wood density, MOE and MOR were decreased along horizontal position from the pith to the bark and vertical direction from base upwards. Regression analysis showed that modulus of elasticity (MOE) and modulus of rupture (MOR) had a positive correlation with wood density.

참고문헌 (30)

  1. Ayobi E, "Heartwood and Sapwood Properties of Quercus castaneaefolia in the Iranian Forests", Middle-East Journal of Scientific Research, 8, pp.669~673 (2011)
  2. Bamber RK, "Sapwood and heartwood : a review", Forest Products Abstracts, 46, pp.567~580 (1985)
  3. Bao FC, "Differences in wood properties between juvenile wood and mature wood in 10 species grown in China", Wood Science and Technology, 35, pp.363~375 (2001)
  4. Beaulieu J, "Comparison be tween genetic and environmental influences on lumber bending properties in young white spruce", Wood and Fiber Science, 38, pp.553~564 (2006)
  5. Bosshard HH, "On the formation of facultatively colored heartwood in Beilschmiedia tawa", Wood science and technology, 2, pp.1~12 (1968)
  6. Cave LD, "Stiffness of wood in fast-grown plantation softwoods : the influence of microfibril angle", Forest Products Journal, 44, pp.43~48 (1994)
  7. Diavanshir K, "Problems of regeneration of Juniperus polycarpos C. Koch in the forests of Iran", Silvae Genetica, 23, pp.106~108 (1974)
  8. Donaldson LA, "Clonal variation of wood density variables in Pinus radiata", New Zealand Journal of Forestry Science, 25, pp.175~188 (1995)
  9. Emami SA, "Antioxidant Activity of the Essential Oils of Different Parts of Juniperus excelsa M. Bieb. subsp. excelsa and J. excelsa M. Bieb. subsp. polycarpos(K. Koch)Takhtajan(Cupressaceae)", Iran J Pharm Res, 10, pp.799~810 (2011)
  10. Fadaei H, "Relationship between tree density and vegetation index of juniper forest in the northeast of Iran", Proceedings of the 30th Asian Conference on Remote Sensing, pp.137~144 (2009)
  11. Giménez AM, "Variación longitudinal de los elementos del leño en Schinopsis quebracho colorado (Schelcht.)Barkl. et Meyer Anacardiaceae", Madera y Bosques, 8, pp.27~38 (2002)
  12. Harvald C, "The variation of the basic density within the juvenile wood of Sitka spruce(Picea sitchensis)", Scandinavian Journal of Forest Research, 2, pp.525~537 (1987)
  13. Haygreen JC, "Forest Products and Wood Science: An introduction", pp.490~ (1996), Iowa State University Press
  14. Kliger IR, "Bending properties of Norway spruce timber. Comparison between fast-and slow-grown stands and influence of radial position of sawn timber", Annals of Forest Science, 55, pp.349~358 (1998)
  15. Liphschitz N, "Dendrochronological investigations in Iran", Tree-Ring Bulletin, 39, pp.39~45 (1979)
  16. Machado JS, "Within stem variation of maritime pine timber mechanical properties", Holz Als Roh-und Werkstoff, 63, pp.154~159 (2005)
  17. Medina AA, "Variación radial y axial de longitud de fibras y elementos de vaso en Nothofagus nervosa(Nothofagaceae)de la Patagonia Argentina", Madera y Bosques, 19, pp.7~19 (2013)
  18. Merela M, "Mechanical properties of sapwood versus heartwood, in three different oak species", Drvna Industrija, 64, pp.323~334 (2013)
  19. Mitchell HL, "Specific gravity variation in North American conifers", pp.30~ (1963), Forest Products Laboratory, Forest Service, U.S. Department of Agriculture
  20. Mitchell MD, "Variation in density of Picea sitchensis in relation to within tree trends in tracheid diameter and wall thickness", Forestry, 70, pp.47~60 (1997)
  21. Panshin AJ, "Textbook of wood technology", pp.722~ (1980), Mc Graw-Hill
  22. Pearson RG, "Effect of fast growth-rate on the mechanical properties of loblolly pine(Pinus taeda)", Forest Products Journal, 30, pp.47~57 (1980)
  23. Saderi SM, "Wood formation in juniperus excelsa SSP. Polycarpos in the high mountains of north-east Iran", Journal of Tropical Forest Science, 25, pp.421~428 (2013)
  24. Simpson HL, "Variation of ring width and specific gravity within trees from unthinned Sitka spruce spacing trial in Clocaenog, North Wales", Forestry, 70, pp.31~45 (1997)
  25. Taylor AM, "Heartwood formation and natural durability-a review", Wood and Fiber Science, 34, pp.587~611 (2002)
  26. Townsend CC, "Flora of Iraq. Volume 2" (1966), Ministry of Agriculture Republic of Iraq
  27. Tsoumis GT, "Science and technology of wood: structure, properties, utilization" (1991), Van Nostrand Reinhold
  28. Zhang SY, "Wood specific gravity-mechanical property relationship at species level", Wood Sci Tech, 31, pp.181~191 (1997)
  29. Zimmermann MH, "Trees - structure and function" (1971), Springer Verlag
  30. Zobel B, "Wood variation: its causes and control", pp.363~ (1989), Springer Verlag

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