Response of tree growth and wood structure of Larix kaempferi, Kalopanax septemlobus and Betula platyphylla saplings to elevated CO2 concentration for 5 years exposure in a FACE system

Watanabe, Yoko; Wakabayashi, Keita; Kitaoka, Satoshi; Satomura, Takami; Eguchi, Norikazu; Watanabe, Makoto; Nakaba, Satoshi; Takagi, Kentaro; Sano, Yuzou; Funada, Ryo; Koike, Takayoshi

Response of tree growth and wood structure of Larix kaempferi, Kalopanax septemlobus and Betula platyphylla saplings to elevated CO2 concentration for 5 years exposure in a FACE system

Watanabe, Yoko; Wakabayashi, Keita; Kitaoka, Satoshi et al.

Trees : structure and function, 2016, 30(5), 1569-1579

Permalink : https://hdl.handle.net/2115/67224

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アクセス権	open access
URI	https://hdl.handle.net/2115/67224
タイトル	Response of tree growth and wood structure of Larix kaempferi, Kalopanax septemlobus and Betula platyphylla saplings to elevated CO2 concentration for 5 years exposure in a FACE system
著者	Watanabe, Yoko ; Wakabayashi, Keita ; Kitaoka, Satoshi ; Satomura, Takami ; Eguchi, Norikazu ; Watanabe, Makoto ; Nakaba, Satoshi ; Takagi, Kentaro ; Sano, Yuzou ; Funada, Ryo ; Koike, Takayoshi
e-Rad_Researcher 30532452 著者名 Watanabe, Yoko
著者名 Wakabayashi, Keita
著者名 Kitaoka, Satoshi
著者名 Satomura, Takami
著者名 Eguchi, Norikazu
e-Rad_Researcher 50612256 著者名 Watanabe, Makoto
著者名 Nakaba, Satoshi
e-Rad_Researcher 20322844 著者名 Takagi, Kentaro
e-Rad_Researcher 90226043 著者名 Sano, Yuzou
著者名 Funada, Ryo
e-Rad_Researcher 10270919 著者名 Koike, Takayoshi
言語	英語
キーワード	Elevated CO2
	FACE
	Tree growth
	Water-conducting cells
	Dye injection
発行日	2016-10
出版者	Springer
収録物名	Trees : structure and function
巻(号)	30(5)
ページ	1569-1579
抄録	Elevated CO (2) concentration affected biomass partitioning in above-ground biomass, but size and number of water-conducting cells were unchanged in Larix kaempferi, Kalopanax septemlobus and Betula platyphylla. Using a Free-Air CO2 Enrichment (FACE) system, we studied the effect of elevated CO2 on the growth, leaf gas exchange and xylem anatomy of a conifer, Larix kaempferi, and two angiospermous tree species, Kalopanax septemlobus and Betula platyphylla. Two-year-old seedlings were grown at control sites (ambient; 370 ppm) and FACE sites (elevated; 500 ppm) for 5 years. We measured the lumen area and number of water-conducting cells, as well as biomass and leaf gas exchange, and visualized the functional region of water transport using a dye injection experiment. Elevated CO2 did not induce any significant changes in growth or in leaf gas exchange or lumen area of earlywood tracheids in L. kaempferi relative to ambient CO2. In two other tree species, elevated CO2 was found to enhance tree height and total leaf area (LA), with no change in stomatal conductance. In K. septemlobus, there were no changes in lumen area or number of earlywood vessels, or in the functional region of water transport. B. platyphylla also underwent no changes in lumen area or number of vessels, although there was a yearly variation in the size of the vessels. Our results show that 5 years of CO2 exposure did not notably affect the anatomical features of water-conducting cells. This finding suggests that, under elevated CO2, trees respond to changes in water balance due to changes in LA by extending the hydraulically active area of xylem.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	The final publication is available at link.springer.com.
PISSN	0931-1890
NCID	AA10681941
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1007/s00468-016-1390-9