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Title
  • ja 寒冷地水域の水質改善のための導水効果の検証
  • en RESEARCH ON THE EFFECT OF INTRODUCING WATER FOR WATER QUALITY IMPROVEMENT IN A COLD REGION
Creator
    • ja 杉原, 幸樹 en SUGIHARA, Koki ja-Kana スギハラ, コウキ
    • ja 中津川, 誠 en NAKATSUGAWA, Makoto ja-Kana ナカツガワ, マコト
Accessrights open access
Rights
  • ja © copyright 2012 土木学会
Subject
  • NDC 517
  • Other ja 導水
  • Other ja 水質
  • Other ja 生態系モデル
  • Other ja 茨戸川
  • Other en Water Conveyance
  • Other en Water Quality
  • Other en Ecosystem model
  • Other en Barato River
Description
  • Other application/pdf
  • Abstract en 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.
Publisher ja 土木学会
Date
    Issued2012
Language
  • jpn
Resource Type journal article
Version Type VoR
Identifier HDL http://hdl.handle.net/10258/00009737 , URI https://muroran-it.repo.nii.ac.jp/records/9788
Relation
  • isIdenticalTo NAID 130004557914
  • isIdenticalTo DOI https://doi.org/10.2208/jscejhe.68.I_1639
  • isVersionOf URI https://www.jstage.jst.go.jp/article/jscejhe/68/4/68_274/_pdf/-char/ja
Journal
    • PISSN 2185-467X
    • NCID AA12373113
      • ja 土木学会論文集B1（水工学） en Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)
      • Volume Number68 Issue Number4 Page StartI_1639 Page EndI_1644
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Oaidate 2023-12-15