Disturbance legacy of a 100-year flood event : large wood accelerates plant diversity resilience on gravel-bed rivers

Uchida, Kei; Okazaki, Azumi; Akasaka, Takumi; Negishi, Junjiro N.; Nakamura, Futoshi

Disturbance legacy of a 100-year flood event : large wood accelerates plant diversity resilience on gravel-bed rivers

Uchida, Kei; Okazaki, Azumi; Akasaka, Takumi et al.

Journal of Environmental Management, 2022, 317, 115467

Permalink : https://hdl.handle.net/2115/93045

このアイテムのアクセス数:190件（2026-08-14 10:37 集計）

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アクセス権	open access
URI	https://hdl.handle.net/2115/93045
タイトル	Disturbance legacy of a 100-year flood event : large wood accelerates plant diversity resilience on gravel-bed rivers
著者	Uchida, Kei ; Okazaki, Azumi ; Akasaka, Takumi ; Negishi, Junjiro N. ; Nakamura, Futoshi
e-Rad_Researcher 40747234 著者名 Uchida, Kei
著者名 Okazaki, Azumi
e-Rad_Researcher 40748357 著者名 Akasaka, Takumi
e-Rad_Researcher 90423029 著者名 Negishi, Junjiro N.
e-Rad_Researcher 90172436 著者名 Nakamura, Futoshi
言語	英語
キーワード	Climate change
	Plants
	Plant richness
	Recovery
	Regional biodiversity
	Retention management
	Soil nutrients
発行日	2022-09-01
出版者	Elsevier
収録物名	Journal of Environmental Management
巻(号)	317
ページ	115467
抄録	Understanding biodiversity resilience after a major disturbance is a key issue in basic and applied science. Plant diversity in gravel-bed rivers is affected by flood events, which are one of the most effective disturbance agents in the flow regime, affecting species distribution, and ecosystem dynamics. Although disturbance plays a critical role in community assembly mechanisms, how plant diversity recovers after a severe disturbance, such as a 100 year flood event remains unknown. The present study examined how the disturbance legacy of large wood in gravel-bed river ecosystems contributes to the resilience of plant diversity. The present study demonstrated that the resilience of plant species in disturbance legacy sites, namely deposited large wood sites, was higher than that in open habitat sites. Indicator species analysis revealed that perennial plants were the most important indicator species of disturbance legacy sites. These results suggest that perennial species richness contributes to the resilience of high plant diversity across the disturbance legacy sites in this region. After major flood events, land managers often remove large wood and debris jams to avoid secondary disasters, such as embankment collapse. However, we suggest that large wood should be retained on the gravel beds to aid the recovery of biodiversity and ecosystems. Furthermore, understanding the relationships between disturbance legacies and ecosystem resilience can contribute to the formulation of strategies for sustainable ecosystem management and biodiversity conservation in the future.
資源タイプ	学術雑誌論文
出版タイプ	Accepted Manuscript
権利情報	Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International
権利情報	© 2022. This manuscript version is made available under the CC-BY-NC-ND 4.0 license https://creativecommons.org/licenses/by-nc-nd/4.0/
PISSN	0301-4797
関連情報 (isVersionOf)	出版社版DOI https://doi.org/10.1016/j.jenvman.2022.115467