Effects of biochar and litter on water relations of Japanese black pine (Pinus thunbergii) seedlings

Fujita, Saki; Watanabe, Hanami; Marozas, Vitas; Tamai, Yutaka; Satoh, Fuyuki; Koike, Takayoshi

Effects of biochar and litter on water relations of Japanese black pine (Pinus thunbergii) seedlings

Fujita, Saki; Watanabe, Hanami; Marozas, Vitas et al.

Journal of Forest Research, 2020, 25(2), 76-82

Permalink : https://hdl.handle.net/2115/80488

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アクセス権	open access
URI	https://hdl.handle.net/2115/80488
タイトル	Effects of biochar and litter on water relations of Japanese black pine (Pinus thunbergii) seedlings
著者	Fujita, Saki ; Watanabe, Hanami ; Marozas, Vitas ; Tamai, Yutaka ; Satoh, Fuyuki ; Koike, Takayoshi
著者名 Fujita, Saki
著者名 Watanabe, Hanami
著者名 Marozas, Vitas
著者名 Tamai, Yutaka
著者名 Satoh, Fuyuki
e-Rad_Researcher 10270919 著者名 Koike, Takayoshi
言語	英語
キーワード	Robinia pseudoacacia
	xylem water potential
	ectomycorrhizal symbiosis
	fine roots
	biochar
発行日	2020-02-25
出版者	Taylor & Francis
収録物名	Journal of Forest Research
巻(号)	25(2)
ページ	76-82
抄録	Biochar is gaining increasing attention in the fields of forest rehabilitation, agriculture, etc. For evaluating biochar application to improve the rhizosphere environment of Japanese black pine (Pinus thunbergii) at harsh coastal environments, a pot experiment was carried out with a focus on ectomycorrhizal (ECM) symbiosis and water relations of seedlings. Another characteristic recently observed at coastal forests is the invasion of the locust (Robinia pseudoacacia), which can potentially increase soil nitrogen. In this study, four treatments were examined (biochar addition, litter addition, biochar and litter addition, and no addition [control]) to determine the effects of biochar and/or nitrogen-rich locust (Robinia pseudoacacia) litter application. Although effects of biochar and litter addition were not observed on ECM symbiosis rate and species composition, treatments with biochar addition, maintained xylem water potential (XWP) of needles for up to 2 weeks without irrigation, independent of litter addition. As biochar increased relative fine root biomass (fine root biomass/total root biomass), it can be considered that biochar was able to maintain needle XWP through increasing the relative amount of fine roots that can obtain water. Overall, these findings suggest that biochar application can help to maintain water relations of Japanese black pine by enhancing fine root growth.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	This is an Accepted Manuscript of an article published by Taylor & Francis in Journal of Forest Research on 25 Feb 2020, available online: http://www.tandfonline.com/10.1080/13416979.2020.1731071.
PISSN	1341-6979
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1080/13416979.2020.1731071