| 1. |
Oppong Jerry Adutwum,Hiroki Sakagami,Shinya Koga,Junji Matsumura, An application of mixed-effects model to evaluate the role of age and size on radial variation in wood specific gravity in teak (Tectona grandis), Journal of Wood Science, 10.1186/s10086-023-02076-3, 69, 9, 2-15, 2023.02. |
| 2. |
Oppong Jerry Adutwum,Hiroki Sakagami,Shinya Koga,Junji Matsumura, Space-time analysis of the longitudinal variation in wood specific gravity of teak and its effect on tree growth and development, BioResources, 10.15376/biores.18.2.2670-2692, 18, 2, 2670-2692, 2023.02. |
| 3. |
Eiko Megan Uchida, Ayumi Katayama, Yuok Yasuda, Tsutomu Enoki, Kyoichi Otsuki, Shinya Koga, Yasuhiro Utsumi, Age-related changes in culm anatomy on the respiration of Phyllostachys pubescens culms, Frontiers in Forests and Global Change. section Tropical Forests, 10.3389/ffgc.2022.868732, 5, 868732, 2022.03. |
| 4. |
G. Kim, B.J. Park, P.S. Yeon, S. Lee, D. Joung, C. Park, S. Koga, Development of a prediction model for NVOC concentration with changing microclimate in Camellia japonica temple forest, Journal of Faculty of Kyushu University, 62, (2), 2021.03. |
| 5. |
Yuko Yasuda, Yasuhiro Utsumi, Tsutomu Enoki, Shinya Koga, High frequency of discontinuous rings in evergreen and deciduous hardwood species in a temperate forest, Forest Ecology and Management, 10.1016/j.foreco.2018.08.041, 430, 526-532, 2018.12. |
| 6. |
Yuko Yasuda, Yasuhiro Utsumi, Xianfang Tan, Naoaki Tashiro, Kenji Fukuda, Shinya Koga, Suppression of growth and death of meristematic tissues in Abies sachalinensis under strong shading
comparisons between the terminal bud, the terminally lateral bud and the stem cambium, Journal of Plant Research, 10.1007/s10265-018-1051-8, 131, 5, 817-825, 2018.09. |
| 7. |
Yuko Yasuda, Yasuhiro Utsumi, Naoaki Tashiro, Shinya Koga, Kenji Fukuda, Cessation of annual apical growth and partial death of cambium in stem of Abies sachalinensis under intensive shading, Journal of Plant Research, 10.1007/s10265-017-0984-7, 131, 2, 261-269, 2018.03. |
| 8. |
Kana Kamimura, Barry A. Gardiner, Shinya Koga, Observations and predictions of wind damage to Larix kaempferi trees following thinning at an early growth stage, Forestry: An International Journal of Forest Research, 4, 530–540, 2017.10. |
| 9. |
Toshihiro Umebayashi, Yasuhiro Utsumi, Shinya Koga, Ikue Murata, Kenji Fukuda, Differences in drought- and freeze-induced embolisms in deciduous ring-porus plant species in Japan, Planta, 10.1007/s00425-016-2564-9, 244, 3, 753-760, 2016.09. |
| 10. |
Yoshio Kijidani, Shinya Koga, Sakgami Hiroki, Hiroshi Matunaga, Effects of application of trans-zeatin on tracheid differentiation in mature sugi (Cryptomeria japonica) tree, Journal of Wood Science, 62, 4, 370-376, 2016.09. |
| 11. |
Sakgami Hiroki, Atsuro Tokunaga, Noboru Fujimoto, Shinya Koga, Isao Kobayashi, Ikuo Momohara, Effects of drying temperature for Cryptomeria japonica on the permeability of wood preservative. II: The permeability of dried, split log pieces, BioResources, 11, 3, 6896-6908, 2016.05. |
| 12. |
Sakgami Hiroki, Atsuro Tokunaga, Noboru Fujimoto, Shinya Koga, Isao Kobayashi, Ikuo Momohara, Effects of drying temperature for Cryptomeria japonica on the permeability of wood preservative. I: The permeability of dried logs, BioResources, 11, 2, 4781-4793, 2016.05. |
| 13. |
Geonwoo Kim, Bum-Jin Park, Poung-Sik Yeon, Dong-Geol Yeom, Shinya Koga, Case study on the changes in the physical environment in forest healing spaces, Journal of Faculty of Kyushu University, 61, (2), 375-381, 2016.09. |
| 14. |
Geonwoo Kim, Bum-Jin Park, Dawou Joung, Dong-Geol Yeom, Shinya Koga, Healing environments of major tree species in Kyushu University Forests: A Case Study, Journal of Faculty of Kyushu University, 60, (2), 477-483, 2015.09. |
| 15. |
Geonwoo Kim, Bum-Jin Park, Dawou Joung, Dong-Geol Yeom, Shinya Koga, Primary concentration measurements of natural volatile organic compounds in atmosphere using the headspace solid-phase microextraction method within the forest, Journal of Faculty of Kyushu University, 60, (2), 471-476, 2015.09. |
| 16. |
Shinya Koga, Kimio Kanayama, Hideaki Tsuchihashi, Hiromu Baba, Tomomi Sugawara, Drying on the board- and boxed heart squares-larch lumbers within an opaque solar drying house covered by a composite surface, Energy Procedia, 10.1016/j.egypro.2014.10.332, 57, 2966-2975, 2014.11. |
| 17. |
Yoshio Kijidani, Naoki Ohshiro, Junji Matsumura, Shinya Koga, Effects of crown length on indole acetic acid (IAA) amounts in cambial region tissues in lower and upper trunks of sugi cultivars (Cryptomeria japonica) in September, Journal of Wood Science, 10.1007/s10086-014-1400-8, 60, 4, 235-242, 2014.08. |
| 18. |
Yoshio Kijidani, Naoki Ohshiro, Daisuke Iwata, Masanori Nagamine, Taiga Nishiyama, Junji Matsumura, Shinya Koga, Variations of indole acetic acid (IAA) amounts in cambial region tissues in 7 and 24-year-old sugi (Cryptomeria japonica) trees, Journal of Wood Science, 10.1007/s10086-014-1394-2, 60, 3, 177-185, 2014.06. |
| 19. |
Yoshio Kijidani, Noriko Sakai, Keita Kimura, Yoshitake Fujisawa, Yuichiro Hiraoka, Junji Matsumura, Shinya Koga, Termite resistance and color of heartwood of hinoki (Chamaecyparis obtusa) trees in 5 half-sib families in a progeny test stand in Kyushu, Journal of Wood Science, 10.1007/s10086-012-1285-3, 58, 6, 471-478, 2012.12. |
| 20. |
Toshihiro Umebayashi, Yasuhiro Utsumi, Shinya Koga, Susumu Inoue, Yasuki Shiiba, Hisami Nagasawa, Shigeru Osaki, Katsuyoshi Kubota, Sachiko Inoue Junji Matsumura, Kazuyuki Oda, Green moisture content and basic density of 95 woody species growing in Kyushu University Forests, Japan, Bulletin of the Kyushu University Forest, 92, 33-44, 2011.03. |
| 21. |
Koga, S., Kakada, K., Muthavy, P., Chan, C., Mizoue, N. and Yoshida, Wood properties of rubber tree (Hevea brasiliensis) planted in Cambodia, The International Forestry Review, 12, 5, 203, 2010.08. |
| 22. |
Toshihiro Umebayashi, Yasuhiro Utsumi, Shinya Koga, Susumu Inoue, Junji Matsumura, Kazuyuki Oda, Seizo Fujikawa, Keita Arakawa and Kyoichi Otsuki, Xylem water-conducting pattern of 34 broadleaved evergreen species in southern Japan, Trees – structure and function- , 10.1007/s00468-010-0428-7, 24, 571-583, 2010.07. |
| 23. |
Kimio Kanayama, Hiromu Baba, Shinya Koga and Tomoyoshi Sugawara, Developing Research on a Fully Passive Solar Lumber Drying Apparatus - Creation of a new concept and establishment of a soft technology, Current Applied Physics, 10.1016/j.cap.2009.11.030, 10, 249-253, 2010.03. |
| 24. |
Takaaki Fujimoto and Shinya Koga, An application of mixed-effects model to evaluate the effects of initial spacing on radial variation in wood density in Japanese larch (Larix kaempferi), Journal of Wood Science, 10.1007/s10086-009-1045-1, 56, 7-14, 2010.02. |
| 25. |
Shinya Koga, Khun Kakada, Pheng Muthavy, Chhek Chan, Nobuya Mizoue and Shigejiro Yoshida, Wood quality assessment of rubber tree (Hevea brasiliensis) planted in Cambodia, Proceedings of Asia Forest Workshop 2008, p.9, 2008.11. |
| 26. |
Khun Kakada, Nobuya Mizoue, Pheng Muthavy, Lim Khan Tiva, Koichiro Gyokusen, Shinya Koga, Akira Shigematsu, Shigejiro Yoshida and Yin Song, Multiple functions of rubber plantation as forest and wood resources, Proceedings of Asia Forest Workshop 2008, p.4, 2008.11. |
| 27. |
Shinya Koga, Kimio Kanayama, Hiromu Baba, Tomoyoshi Sugawara, Masahiro Nakajima, Akira Yaegashi and Zenbei Komiyama, Development of all-weather type solar dryer for wood pellet material., Renewable energy 2008 Proceedings, p.308, 2008.11. |
| 28. |
Kimio Kanayama, Hiromu Baba, Shinya Koga and Tomoyoshi Sugawara, Developing research on a fully passive solar lumber drying apparatus – Creation of a new concept and establishment of a soft technology, Renewable energy 2008 Proceedings, p.70, 2008.11. |
| 29. |
Toshihiro Umebayashi, Yasuhiro Utsumi, Shinya Koga, Susumu Inoue, Seizo Fujikawa, Keita Arakawa, Junji Matsumura and Kazuyuki Oda, Xylem water conducting pathways of deciduous broadleaved trees growing in a northern temperate zone, IAWA Journal, 29 (3):247-263, 2008.09. |
| 30. |
Kakada Khun, Nobuya Mizoue, Koichiro Gyokusen, Shinya Koga, Muthavy Pheng, CHan Chhek, Shigejiro Yoshida, Below- and above-ground biomass of Hevea culture in Cambodia, Proceedings of CRRI & IRRDB International Rubber Conference 2007, 223, 2007.11. |
| 31. |
Toshihiro Umebayashi, Yasuhiro Utsumi, Shinya Koga, Susumu Inoue, Yasuki Shiiba, Kazuyuki Oda, Optimal condition for visualizing the water-conducting pathway in living trees by dye injection, Tree Physiology, 27:993-999, 2007.06. |
| 32. |
Yasuhiro Utsumi, Shinya Koga, Naoaki Tashiro, Atsushi Yamamoto, Yukiie Saitoh, Takanori Arima, Hirokazu Yamamoto, Masahiko Kadomatsu, Nao Sakanoue, Effect of the decortication of bark (bark decortication) to produce hiwada on xylem and phloem formation in Chamaecyparis obtusa Endl, Journal of Wood Science, 52:477-482, 2006.12. |
| 33. |
Baba, H., Kanayama, K., H., Sugawara, T., Koga S., Nakajima, M., Development of a Continuous Ogako-Drying Apparatus using Belt Conveyor in an Improved Green-House, Renewable Energy 2006 Proceeding , 596-599, 2006.10. |
| 34. |
Kanayama, K., Baba, H., Sugawara, T., Koga S., Nakajima, M., Developing Research on an Active-Passive type Solar Lumber Drying House, Renewable Energy 2006 Proceedings, 509-512, 2006.10. |
| 35. |
Koga, S., Tsushima, S., Matsumura, J., Oda, K. and Shiraishi, S, Modelling growth and wood properties of Japanese cedar (Cryptomeria japonica): the effects of cultivars and initial spacing, Proceedings of Fifth workshop "Connection between forest resources and wood quality: modelling approaches and simulation software", (in press), 2007.12. |
| 36. |
Effects of initial spacing on growth and wood properties of sugi (Cryptomeria japonica) cutting cultivars.. |
| 37. |
Growth and wood properties of sugi cultivars grown in Kyushu Regions.. |
| 38. |
Kumagai, T., Nagasawa, H., Mabuchi, T., Ohsaki, S., Kubota, K., Kogi, K., Utsumi, Y., Koga, S. and Otsuki, K., Sources of error in estimating stand transpiration using allometric relationships between stem diameter and sapwood area for Cryptomeria japonica and Chamaecyparis obtusa., Forest Ecology and Management, 10.1016/j.foreco.2004.10.066, 206, 1-3, 191-195, 206:191-195, 2005.01. |
| 39. |
Koga, S. and Zhang, S.Y., Inter-tree and intra-tree variation in ring width and wood density components in balsam fir (Abies balsamea)., Wood Science and Technology, 37:625-642, 2004.04. |
| 40. |
Koga, S., Mitsuda, Y., Yoshida, S., Imada, M. and Okano, T., Wood properties of Japanese larch: modelling and integration with a stand level growth simulator., Proceedings of Fourth workshop "Connection between forest resources and wood quality: modelling approaches and simulation software",(Edited by Gerard Nepveu), p.553-561, 2004.03. |
| 41. |
Koga, S., Mitsuda, Y., Yoshida, S., Imada, M. and Okano, T., Modelling basic wood properties of Japanese larch (Larix kaempferi) and integration with a stand level growth simulator., Proceedings of the IAWSP 2003 International conference on forest products "Better utilization of wood for human, earth and future"(Edited by Hwa Hyoung Lee and Sang Sik Jang), Vol.2:970-976, 2003.05. |
| 42. |
Koga, S., Zhang, S.Y.and Begin, L., Effect of precommercial thinning on annual radial growth and wood density in balsam fir (Abies balsamea)., Wood and Fiber Science, 34(4):625-642, 2002.10. |
| 43. |
Koga, S. and Zhang, S.Y., Relationships between ring width and wood density components in balsam fir (Abies balsamea)., Wood and Fiber Science, 34(1):146-157, 2002.01. |
| 44. |
Studies of producing "hiwada" in Kyushu.. |
| 45. |
Oda, K. and Koga, S., Wood properties of sugi (Cryptomeria japonica) cultivars, Proceedings of China-Japan Symposium "Forming and Utilization of fast-growing trees", pp.43-46, 1999.02. |
| 46. |
Takata, K., Koga, S. and Teraoka, Y., A new forest-stand database with wood quality and genotype data of trees, Proceedings of International Symposium on Global Concerns for Forest Resource Utilization -Sustainable Use and Management-., pp.861-865, 1998.10. |
| 47. |
Koga, S., Oda, K. and Tsutsumi, J., Variation in basic wood properties of sugi (Cryptomeria japonica) Cultivars, Proceedings of the CTIA/IUFRO International Wood Quality Workshop "Timber Management Toward Wood Quality and End-Product Value", pp.VIII-11-16, 1997.08. |
| 48. |
Koga, S., Oda, K., Tsutsumi, J. and Fujimoto, T., Effect of thinning on annual ring structure of Japanese larch (Larix leptolepis), IAWA Journal, 18(3): 277-286, 1997.10. |
| 49. |
Koga, S., Oda, K., Tsutsumi, J. and Fujimoto, T., Effect of thinning on basic density and tracheid length of karamatsu (Larix leptolepis, Mokuzai Gakkaishi, 42(6): 605-611, 1996.06. |
| 50. |
Effect of crown volume on growth and wood proerties of Japanese larch.. |
