| タイトル |
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| その他のタイトル |
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RESEARCH ON THE EFFECT OF INTRODUCING WATER FOR WATER QUALITY IMPROVEMENT IN A COLD REGION
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| 作成者 |
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| 権利情報 |
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| 主題 |
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Other
導水
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Other
水質
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Other
生態系モデル
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Other
茨戸川
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Water Conveyance
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Other
Water Quality
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Other
Ecosystem model
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Other
Barato River
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NDC
517
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| 内容注記 |
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Other
In the Barato River, eutrophication has been occurring because of urban effluent and river cutoff improvements. To improve the water quality, additional water has been conveyed into the Barato River since 2007. This study aims to evaluate the effects of such conveyance on water quality. At the Jyobukobon, BOD was found to increase by conveyance from the Sosei River and to decrease by conveyance from the Ishikari River. At the Tarukawa-Goryumae, BOD was found to decrease slightly by water conveyance from the Sosei River but to show no clear changes in the year after conveyance from the Ishikari River. To evaluate the effects of water conveyance,an ecosystem model was developed that enables year-round predictions, including for the freezing season. A water quality simulation for four consecutive years estimated a decrease in BOD by about 1.0 mg/L at the Jyobukobon and about 0.6 mg/L at the Tarukawa-Goryumae. Also, nitrogen density was estimated to decrease by water conveyance.
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| 出版者 |
土木学会
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| 日付 |
Created2019-03-12
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Issued2012
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| 言語 |
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| 資源識別のタイプ |
journal article |
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VoR |
| 資源識別子 |
URI
http://hdl.handle.net/10258/00009737
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| 関連 |
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isIdenticalTo
DOI
https://doi.org/10.2208/jscejhe.68.I_1639
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NAID
130004557914
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isVersionOf
URI
https://www.jstage.jst.go.jp/article/jscejhe/68/4/68_274/_pdf/-char/ja
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| 収録誌情報 |
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NCID
AA12373113
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ISSN
2185-467X
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土木学会論文集B1（水工学） = Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
68(4), I_1639-I_1644
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| ファイル |
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| コンテンツ更新日時 |
2021-04-13 |
