Twenty years of community dynamics in a mixed conifer : broadleaved forest under a selection system in northern Japan

Yoshida, Toshiya; Noguchi, Mahoko; Akibayashi, Yukio; Noda, Masato; Kadomatsu, Masahiko; Sasa, Kaichiro

Twenty years of community dynamics in a mixed conifer : broadleaved forest under a selection system in northern Japan

Yoshida, Toshiya; Noguchi, Mahoko; Akibayashi, Yukio et al.

Canadian journal of forest research, 2006, 36(6), 1363-1375

Permalink : https://hdl.handle.net/2115/14458

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アクセス権	open access
URI	https://hdl.handle.net/2115/14458
タイトル	Twenty years of community dynamics in a mixed conifer : broadleaved forest under a selection system in northern Japan
著者	Yoshida, Toshiya ; Noguchi, Mahoko ; Akibayashi, Yukio ; Noda, Masato ; Kadomatsu, Masahiko ; Sasa, Kaichiro
e-Rad_Researcher 60312401 著者名 Yoshida, Toshiya
著者名 Noguchi, Mahoko
著者名 Akibayashi, Yukio
著者名 Noda, Masato
著者名 Kadomatsu, Masahiko
e-Rad_Researcher 70125318 著者名 Sasa, Kaichiro
言語	英語
キーワード	temperate deciduous forest
	sitka spruce stands
	boreal forest
	dwarf bamboo
	regeneration process
	natural disturbance
	western hemlock
	early response
	gap dynamics
	canopy gaps
発行日	2006-06
出版者	NATL RESEARCH COUNCIL CANADA
収録物名	Canadian journal of forest research
巻(号)	36(6)
ページ	1363-1375
抄録	Single-tree selection has been employed widely in northern Japanese mixed forests, but management-induced changes in forests are not well understood. This study examined demographic parameters of major tree species during a 20-year study of a 68 ha stand in which single-tree selection has been conducted since 1971. Results showed that growth and survival of conifers (mostly Abies sachalinensis (Fr. Schm.) Masters) was the most strongly positively affected by the treatment. Nevertheless, recruitment of conifers was not sufficiently improved, suggesting their decreased dominance over the longer term. Instead, shade-intolerant broad-leaved species (mainly Betula ermanii Cham.) will gradually increase because of their higher recruitment rates after the treatment. Shade-tolerant broad-leaved species (mainly Acer mono Maxim. and Tilia japonica (Miq.) Simonkai) appeared to experience the most distinct negative effects, especially on survival. These trends differed markedly from those reported in previous papers concerning partial harvesting systems, which predicted an increase in dominance of shade-tolerant species. The results shown here should be generalized carefully because we have investigated only one stand without repetition of the control area. Nevertheless, trends described in this large-scale, long-term study could provide a basis for simulating stand dynamics. We discussed possible reasons for the observed patterns and provided implications for sustainable management in the region.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	copyright 2006 NRC Canada
PISSN	0045-5067
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1139/X06-041