書誌事項
- タイトル別名
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- Influence of flushing on the estuarine tidal flat ecosystem developed in the mouth of Ohtagawa flood way
説明
The Ohtagawa flood way is connected with Ohtagawa river via Gion floodgate. Under the normal times, the discharge water volume for the Ohtagawa flood way is maintained to keep its structure and functions, such as biological productions, however flushing is carried out in the case of a heavy rain which may cause flooding of Ohtagawa river. The flushing inevitably disturbs the tidal flat ecosystem developed in the flood way. This research was carried out to investigate how the flushing disturbs the estuarine tidal flat ecosystem developed in the mouth of Ohta flood way. The flushing caused runoff of the tidal flat surface soil and/or macrobenthos, of which degrees were dependent on the water volume and the period of flushing. The measurement of the tidal flat surface level revealed that about 10 cm of the surface soil was run off by the flushing in 2006 with 5.57m of water level measured at Yaguchi-daiichi observing station, while that with 8.81 m in 2005 vanished 50% of the macrobenthic population. After the flushing, the level of the tidal flat surface and macrobenthic population were finally recovered to the original conditions.
収録刊行物
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- 環境工学研究論文集
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環境工学研究論文集 45 59-64, 2008
公益社団法人 土木学会
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詳細情報 詳細情報について
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- CRID
- 1390001204112273280
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- NII論文ID
- 130003949576
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- ISSN
- 1884829X
- 13415115
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- 本文言語コード
- ja
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- データソース種別
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- JaLC
- CiNii Articles
- KAKEN
- Crossref
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- 抄録ライセンスフラグ
- 使用不可