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标题：Effects of water turbulence on plant, sediment and water quality in reed (Phragmites australis) community
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作者：Keerthi Sri Senarathna Atapaththu ; Takashi Asaeda ; Masumi Yamamuro 等
期刊名称：Ekologia
电子版ISSN：1337-947X
出版年度：2017
卷号：36
期号：1
页码：1-9
DOI：10.1515/eko-2017-0001
语种：English
出版社：Walter de Gruyter GmbH
摘要：Even though the interaction between water movements and aquatic plant is crucial for the aquatic ecosystem management, the importance of water turbulence in this regard is not well documented. To add to our knowledge on the interaction between aquatic plant communities and water turbulence, this study examined turbulence, plant, sediment and water quality at the reed community (Phragmites australis) in the Lake Shinji, Japan. Observations were conducted along transects perpendicular to the shoreline. For each transect, reed communities were observed at land ward side, centre, water ward and the outside of the reed community. An elevated level of turbulence was observed outside compared to inside reed community, where the magnitude of turbulence decreased with distance into the community interior. A significant positive correlation was observed for turbulence and surface-dissolved oxygen where the latter was negatively correlated to reed density. Sediment composition was affected by water turbulence where the content of coarse particles positively correlated to turbulence. Accumulation of organic matter in anoxic sediments together with fine particles was observed under low turbulence. Our findings can offer insight into understanding the interactions between turbulence and aquatic plant communities.
关键词：turbulence ; Phragmites australis ; Lake Shinji ; sediments ; dissolved oxygen