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Journal of Wood Science

Official Journal of the Japan Wood Research Society

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Radial variations of wood properties of an endangered species, Pinus armandii var. amamiana

Journal of Wood Science volume 54, pages 443–450 (2008)Cite this article

Abstract

A dead tree of Pinus armandii Franch. var. amamiana (Koidz.) Hatusima (abbreviated to PAAm) was obtained from a natural habitat on Tanega-shima Island and various properties of its wood were investigated. Grain angle was measured and soft X-ray analysis was undertaken to obtain the density in each annual ring. Unit shrinkage and dynamic properties were measured by shrinkage, bending, and compression tests. Variations of wood properties in the radial direction, relationships of wood properties to density, and annual ring width were examined. Roughly speaking, variations in the radial direction of the grain angle, twist angle by drying, Young’s modulus and strength in static bending, absorbed energy in impact bending, compressive Young’s modulus, compressive strength, and compressive proportional limit corresponded to the variation of annual ring width. As a result, it was determined that if PAAm is afforested artificially for the purposes of lumber production and conservation, the annual rings of logs should not be too widely spaced. Wood properties of PAAm were similar to those of Japanese black pine (Pinus thunbergii Parl.), which is another representative pine on Tanegashima Island.

References

  1. Hatusima S (1938) Taxonomic study on Pinus armandii Franch. and Pinus amamiana Koidz. (in Japanese). Jpn J For Soc 20:392–400

    Google Scholar 

  2. Yahara T, Ohba H, Murata J, Iwatsuki K (1987) Taxonomic review of vascular plants endemic to Yakushima Island, Japan. J Fac Sci Univ Tokyo III 14:69–119

    Google Scholar 

  3. Kanetani S, Gyokusen K, Saito A, Yoshimaru H (2001) The distribution of an endangered tree species, Pinus armandii Franch. var. amamiana (Koidz.) Hatusima in Tanega-shima Island (in Japanese). For Tree Breed special issue:34–37

  4. Kanetani S, Kawahara T, Kanazashi A, Yoshimaru H (2004) Diversity and conservation of genetic resources of an endangered five-needle pine species, Pinus armandii Franch. var. amamiana (Koidz.) Hatusima. USDA Forest Service Proceedings, RMRS-P-32:188–191

  5. Terashita T, Matsumoto K (1986) Pathogenicity of the pine wood nematode to Pinus armandii var. amamiana (in Japanese). Trans 39th Meet Kyushu Br Jpn For Soc 159–160

  6. Kanetani S, Akiba M, Nakamura K, Gyokusen K, Saito A (2001) The process of decline of an endangered tree species, Pinus armandii Franch. var. amamiana (Koidz.) Hatusima, on the southern slope of Mt. Hasa-dake in Yaku-shima Island. J For Res 6:307–310

    Article  Google Scholar 

  7. Hayashi S, Umata H, Takahashi Y (1984) Forest genetic studies on Yakutanegoyo (Pinus armandii Franch. var. amamiana Hatusima) for prevention of its extermination I. The actuality of the Yakutanegoyo (in Japanese with English summary). Bull Kagoshima Univ For 12:67–77

    Google Scholar 

  8. Kanazashi A, Nakashima K, Kawahara T (1998) A study for genetic resources conservation of Pinus armandii Franch. var. amamiana (Koidz.) Hatusima (in Japanese). For Tree Breed 188:24–28

    Google Scholar 

  9. Chigira O (1995) Seed fertility of Pinus armandii Franch. var. amamiana Hatusima, one of the vulnerable species in Japan (in Japanese). Trans Jpn For Soc 106:303–304

    Google Scholar 

  10. Ito S, Kanetani S, Gyokusen K (1996) Habitats Pinus armandii var. amamiana seedlings in Mt. Hasha-dake in Yaku-shima Island (in Japanese). Trans 49th Meet Kyushu Br Jpn For Soc 75–76

  11. Kanetani S, Gyokusen K, Saito A, Ito S (1996) Cone and seed production of Pinus armandii Franch. var. amamiana Hatusima found around Mt. Hasha-dake in Yaku-shima Island (in Japanese). Trans 49th Meet Kyushu Br Jpn For Soc 49–50

  12. Kanetani S, Gyokusen K, Ito S, Saito A (1997) The distribution pattern of Pinus armandii Franch. var. amamiana Hatusima around Mt. Hasa-dake in Yaku-shima Island (in Japanese). J Jpn For Soc 79:160–163

    Google Scholar 

  13. Kanetani S, Hosoyamada S, Gyokusen K, Saito A (1998) Seed dispersal of Pinus armandii Franch. var. amamiana Hatusima at Terayama Station for Education and Research on Nature, Faculty of Education, Kagoshima University (in Japanese with English summary). Bull Fac Edu Kagoshima Univ Nat Sci 49:95–104

    Google Scholar 

  14. Nakamura K, Akiba M, Kanetani S (2001) Pine wilt disease as promising causal agent of mass mortality of Pinus armandii Franch. var. amamiana (Koidz.) Hatusima in the field. Ecol Res 16:795–801

    Article  Google Scholar 

  15. Akiba M, Nakamura K (2005) Susceptibility of adult trees of the endangered species Pinus armandii var. amamiana to pine wilt disease in the field. J For Res 10:3–7

    Article  Google Scholar 

  16. Kanetani S, Tetsuka K, Ikegame H (2005) The threatened tree species in Japan - Yakutane-goyo (Pinus armandii var. amamiana) (in Japanese). For Tree Breed 214:27–30

    Google Scholar 

  17. Environment Agency of Japan (2000) Threatened wildlife of Japan - Red data book, 2nd edn, vol 8, Vascular Plants Island (in Japanese). Japan Wildlife Research Center, Tokyo, Japan, p 271

    Google Scholar 

  18. Shiozaki M, Ishii M, Nishimura K, Fuyuno S (2005) After a project of emergency measure for reproduction and restoration in Yakutane-goyo (Pinus armandii var. amamiana) (in Japanese). For Tree Breed 215:34–42

    Google Scholar 

  19. Ishii K, Hosoi Y, Maruyama E, Kanetani S, Koyama T (2004) Plant regeneration from mature embryos of endangered species Pinus armandii Faranch. var. amamiana (Koidz.) Hatusima (in Japanese with English Summary). J Soc High Tech Agric 16:71–79

    Article  CAS  Google Scholar 

  20. Ishii K, Maruyama E, Hosoi Y, Kanetani S (2005) In vitro propagation of three endangered species in Japanese forests. Propag Ornament Plant 5:173–178

    Google Scholar 

  21. Farjon A (1984) Pines: drawings and descriptions of the genus Pinus. Brill, Leiden, Netherlands, p 270

  22. Kanetani S (2002) Encouledegement for use of an endangered species, Pinus armandii var. amamiana (in Japanese). Kagoshima Woodytec Forum 21:32–35

    Google Scholar 

  23. Tetsuka K (2006) The conservation activities for an endangered species, Pinus armandii var. amamiana (in Japanese). For Tree Breed 220:13–14

    Google Scholar 

  24. Mikami S, Nagasaka K (1975) Spiral grain in Larix leptolepis Gord. Bull Gov For Exp Sta 276:1–22

    Google Scholar 

  25. Wood Technological Association of Japan (1955) Outline of Japanese important wood. Pinus thunbergii Parlatore. Wood Ind 10

  26. Nakatane Town Museum of History and Folklore (1983) The last canoe made from Pinus armandii var. amamiana in Tanega-shima Island. Nakatane Town, p 26

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Authors and Affiliations

  1. Forestry and Forest Products Research Institute, 1 Matsunosato, Tsukuba, 305-8687, Japan

    Yoshitaka Kubojima, Seiichi Kanetani, Takeshi Fujiwara, Youki Suzuki, Mario Tonosaki & Hiroshi Yoshimaru

  2. Tanega-shima Yakutane-goyo Conservation Group, Nishinoomote, Kagoshima, 891-3221, Japan

    Hiroharu Ikegame

Authors
  1. Yoshitaka Kubojima
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  2. Seiichi Kanetani
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  3. Takeshi Fujiwara
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  4. Youki Suzuki
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  5. Mario Tonosaki
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  6. Hiroshi Yoshimaru
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  7. Hiroharu Ikegame
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Correspondence to Yoshitaka Kubojima.

Additional information

This study was presented in part at the 56th Annual Meeting of the Japan Wood Research Society, Hiroshima, August 2007

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Kubojima, Y., Kanetani, S., Fujiwara, T. et al. Radial variations of wood properties of an endangered species, Pinus armandii var. amamiana . J Wood Sci 54, 443–450 (2008). https://doi.org/10.1007/s10086-008-0986-0

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  • DOI: https://doi.org/10.1007/s10086-008-0986-0

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