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Individual growing conditions that affect diameter increment of tree saplings after selection harvesting in a mixed forest in northern Japan

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Title: Individual growing conditions that affect diameter increment of tree saplings after selection harvesting in a mixed forest in northern Japan
Authors: Miya, Hisashi Browse this author
Yoshida, Toshiya Browse this author →KAKEN DB
Noguchi, Mahoko Browse this author
Nakamura, Futoshi Browse this author →KAKEN DB
Keywords: Annual ring analysis
Canopy disturbance
Diameter growth
Single-tree selection
Issue Date: Oct-2009
Publisher: Springer Japan
Journal Title: Journal of Forest Research
Volume: 14
Issue: 5
Start Page: 302
End Page: 310
Publisher DOI: 10.1007/s10310-009-0136-6
Abstract: We analyzed temporal patterns in diameter growth of saplings following selection harvesting in an uneven-aged mixed stand dominated by Abies sachalinensis, Acer mono, Quercus crispula, and Betula ermanii in Hokkaido, northern Japan. We examined interspecific differences in growth responses to local growing conditions including harvesting intensity, crowding, stem size, and past duration of the small growth period. Consistent with expectations based on shade tolerance of the species, the age at which the individual reached a diameter at breast height of 12.5 cm was highest for A. sachalinensis and lowest for B. ermanii. The interspecific growth differences between saplings that had or had not experienced local harvesting increased gradually for A. sachalinensis and B. ermanii, but peaked at around 4-6 years after harvesting for Q. crispula. Generalized linear mixed model analysis clearly suggested that individual growth conditions required to enhance diameter growth of saplings differed considerably among species. For Q. crispula and B. ermanii, local harvesting intensity was most strongly and positively associated with diameter growth rate, whereas for A. sachalinensis and A. mono, stem size had the strongest negative effect. Abies sachalinensis saplings responded more to surrounding harvesting when they were relatively small, whereas A. mono showed a weak opposite response. The duration of the small growth period before harvesting had negative effect for A. sachalinensis, but not for the other species. Our study indicated that the influence of selection harvesting on growth of shade-tolerant species depends upon pre- and post-harvest growing conditions.
Rights: The original publication is available at
Type: article (author version)
Appears in Collections:農学院・農学研究院 (Graduate School of Agriculture / Faculty of Agriculture) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 宮 久史

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