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Scientific sustainable design of river embayment environment based on DO transfer mechanics

Research Project

Project/Area Number 17H03311
Research Category

Grant-in-Aid for Scientific Research (B)

Allocation TypeSingle-year Grants
Section一般
Research Field Hydraulic engineering
Research InstitutionKyoto University

Principal Investigator

Sanjou Michio  京都大学, 工学研究科, 准教授 (80362458)

Co-Investigator(Kenkyū-buntansha) 原田 守啓  岐阜大学, 流域圏科学研究センター, 准教授 (00647042)
永山 滋也  岐阜大学, 流域圏科学研究センター, 研究員 (70540558)
岡本 隆明  京都大学, 工学研究科, 助教 (70599612)
大石 哲也  国立研究開発法人土木研究所, 土木研究所(つくば中央研究所), 研究員 (10355886)
Project Period (FY) 2017-04-01 – 2020-03-31
Project Status Completed (Fiscal Year 2019)
Budget Amount *help
¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2019: ¥780,000 (Direct Cost: ¥600,000、Indirect Cost: ¥180,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥3,770,000 (Direct Cost: ¥2,900,000、Indirect Cost: ¥870,000)
Keywordsワンド / DO輸送 / 河川環境 / 環境水理 / ワンド環境 / ガス輸送 / 水理実験 / フィールド観測 / 環境水理学 / 野外計測 / 野外観測
Outline of Final Research Achievements

We compared quantitatively two sources of DO into the embayment, in order to acquire basic knowledge for the scientific design. Then the DO level in the main-channel is found to play a key role to control the embayment DO level. Hence, Hence this project study lead theoretical equation of developing concentration boundary layer in open-channel flow, and we measured streamwise variation of concentration boundary layer thickness by using an extrafine needle-type DO probe. It suggested the local gas transfer is controlled by two significant terms, i.e., streamwise gradient of mean velocity and relative intensity of turbulence diffusion. Focusing on the open-channel flows including partly submerged strip roughness zone, we could explain formation mechanism of concentration boundary layer by comparison with the present theory.
Therefore, turbulence promotion of permeable roughness and accelerating by contraction are found to increase locally DO level.

Academic Significance and Societal Importance of the Research Achievements

ワンドやたまりに代表される閉鎖水域における物質輸送,さらには関連する諸現象の解明は水理水工学に求められる重点研究項目である.
基礎科学知見に基づいたDO 輸送動態モデルの構築と永続可能な河川ワンドのインテリジェントデザインという未知の課題に挑戦する独創的な特進プロジェクトである.全体構想を着実に遂行するために,水路実験と野外観測における科学的知見によって強固な学術基盤を築く.これらの成果が得られれば,河川水理のガス輸送分野と河川環境工学に関する研究促進の突破口になり,環境水理学や応用生態学の進展に大きく貢献するものと考える.

Report

(4 results)
  • 2019 Annual Research Report   Final Research Report ( PDF )
  • 2018 Annual Research Report
  • 2017 Annual Research Report
  • Research Products

    (34 results)

All 2020 2019 2018 2017

All Journal Article (15 results) (of which Peer Reviewed: 11 results,  Open Access: 1 results) Presentation (17 results) (of which Int'l Joint Research: 4 results,  Invited: 4 results) Book (2 results)

  • [Journal Article] Experimental study on DO transfer into a local embayment connected to an open-channel flow2020

    • Author(s)
      Sanjou, M., Okamoto, T. and Sugihara, Y.
    • Journal Title

      Proc. of Riverflow 2020

      Volume: CD-ROM

    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DO RECOVERY PROCESS IN A SQUARE EMBAYMENT CONNECTED TO AN OPEN-CHANNEL FLOW2020

    • Author(s)
      Sanjou, M., Okamoto, T.
    • Journal Title

      Proc. of APD-IAHR 2020

      Volume: CD-ROM

    • Related Report
      2019 Annual Research Report
  • [Journal Article] FUNDAMENTAL STUDY ON LOCAL GAS TRANSFER PROPERTY IN OPEN-CHANNEL TURBULENCE2019

    • Author(s)
      山上路生 岡本隆明
    • Journal Title

      Journal of Japan Society of Civil Engineers, Ser. B1 (Hydraulic Engineering)

      Volume: 75 Issue: 1 Pages: 100-111

    • DOI

      10.2208/jscejhe.75.100

    • NAID

      130007709886

    • ISSN
      2185-467X
    • Related Report
      2019 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 河道内氾濫原と水田域におけ るカエル類の生息状況の比較2019

    • Author(s)
      田和康太・永山滋也・萱場祐一・中村圭吾
    • Journal Title

      応用生態工学

      Volume: 22(1) Pages: 19-33

    • NAID

      130007705211

    • Related Report
      2019 Annual Research Report
  • [Journal Article] Research priorities for freshwater mussel conservation assessment2019

    • Author(s)
      Ferreira-Rodr,Nagayama Shigeya et al.
    • Journal Title

      Biological Conservation

      Volume: 231 Pages: 77-87

    • Related Report
      2019 Annual Research Report
  • [Journal Article] イシガイ類に着目 した河道内における氾濫原水域環境の汎用的評価手法の検討2019

    • Author(s)
      永山滋也・加藤康充・宮脇成生・原田守啓・萱場祐一
    • Journal Title

      応用生態工学

      Volume: 22(1) Pages: 135-144

    • NAID

      130007630014

    • Related Report
      2019 Annual Research Report
  • [Journal Article] 自動水文観測を実現するロボット流速・流量計の 2 研究 -中小直線河道における実証試験-2019

    • Author(s)
      山上路生、磯部駿佑、重田明日香、岡本隆明、戸田圭一
    • Journal Title

      自然災害科学

      Volume: 38

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] イシガイ類に着 目した河道内における氾濫原水域環境の汎用的評価手法の検討2019

    • Author(s)
      永山滋也・加藤康充・宮脇成生・原田守啓・萱場祐一
    • Journal Title

      応用生態工学

      Volume: 21(2) Pages: 135-144

    • NAID

      130007630014

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] DO transfer in Side-cavity connected to Straight Open-channel2018

    • Author(s)
      Sanjou, M. and Okamoto, T.
    • Journal Title

      Proc. Annual conference of engineering and applied science 2018

      Volume: USB-ROM Pages: 425-431

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] The significance of meandering channel to habitat diversity and fish assemblage: a case study in the Shibetsu River, northern Japan2018

    • Author(s)
      Nagayama S., Nakamura F
    • Journal Title

      Limnology

      Volume: 19(1) Pages: 7-20

    • NAID

      120006551575

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Effect of aquatic vegetation on gas transfer velocity in open-channel flows,2018

    • Author(s)
      Okamoto, T. and Sanjou, M.
    • Journal Title

      Proc. of 12th ISE 2018 Congress, Tokyo

      Volume: S8-10-2

    • Related Report
      2018 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Experimental study on fluid energy reduction through a flood protection forest2018

    • Author(s)
      Sanjou, M., Okamoto, T. and Nezu, I.
    • Journal Title

      J.Flood Risk Management

      Volume: 11 Issue: 4

    • DOI

      10.1111/jfr3.12339

    • NAID

      120006863501

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] 橋脚周辺における流木の3次元的集積に関して2018

    • Author(s)
      岡本隆明、山上路生、橿原義信
    • Journal Title

      水工学論文集

      Volume: 74

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Journal Article] Development of autonomous boat-type robot for automated velocity measurement in straight natural river2017

    • Author(s)
      Michio Sanjou and Tsuyoshi Nagasaka
    • Journal Title

      Water Resources Research

      Volume: 53 Issue: 11 Pages: 9089-9105

    • DOI

      10.1002/2017wr020672

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed / Open Access
  • [Journal Article] Surface velocity divergence model of air / water interfacial gas transfer in open-channel flows2017

    • Author(s)
      Sanjou, M., Nezu, I. and Okamoto, T.
    • Journal Title

      Physics of Fluids

      Volume: 29 Issue: 4 Pages: 045107-045107

    • DOI

      10.1063/1.4981228

    • NAID

      120006863491

    • Related Report
      2017 Annual Research Report
    • Peer Reviewed
  • [Presentation] 新技術による今後のイタセンパラ保全の展望”:第10回記念大 会「イタセンパラの勉強会~木曽川水系イタセンパラ保全の10年の歩み~」2020

    • Author(s)
      永山滋也
    • Organizer
      木 曽川水系イタセンパラ保護協議会(環境省中部地方環境事務所・国土交通省中部 地方整備局)
    • Related Report
      2019 Annual Research Report
  • [Presentation] 「環境DNAを用い たイタセンパラの季節的移動の解明とワンド環境特性との関係」2019

    • Author(s)
      永山滋也
    • Organizer
      第2回環境DNA 学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 木曽川におけるイシガイ 科二枚貝類生息環境の10年変化~生息場シフトの重要性と営力依存の限界2019

    • Author(s)
      永山滋也
    • Organizer
      応 用生態工学会第23回大会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 揖斐川・長良川の高水敷掘削後の土砂再堆積傾向の違いとその要因の分析2019

    • Author(s)
      原田守啓
    • Organizer
      応用生態工学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] 木曽三川扇状地区間の物理環境はどう違うのか?2019

    • Author(s)
      10.鈴木崇史・ 冨田浩生・吉川敦希・原田守啓・永山滋也
    • Organizer
      応用生態工学会
    • Related Report
      2019 Annual Research Report
  • [Presentation] DO transfer in Side-cavity connected to Straight Open-channel2018

    • Author(s)
      Sanjou, M.
    • Organizer
      Annual conference of engineering and applied science 2018, Osaka
    • Related Report
      2018 Annual Research Report
    • Int'l Joint Research
  • [Presentation] 「木曽川ワンド・たまりにお けるイタセンパラ稚魚の環境DNA検出精度の検証」2018

    • Author(s)
      永山滋也
    • Organizer
      第1回環境DNA学会.東京
    • Related Report
      2018 Annual Research Report
  • [Presentation] Reasonability of cyclic floodplain rejuvenation for strategic biodiversity conservation in Japanese lowland rivers2018

    • Author(s)
      Nagayama S.
    • Organizer
      2th International Symposium on Ecohydraulics (ISE2018). Tokyo.
    • Related Report
      2018 Annual Research Report
  • [Presentation] 橋脚周辺における流木の3次元的集積に関して2018

    • Author(s)
      岡本隆明
    • Organizer
      2018年度水工学講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] Recent works of hydraulics laboratory in Kyoto University2017

    • Author(s)
      山上路生
    • Organizer
      YTU-MES-JSCE joint seminar 2017, Yangon(招待講演)(国際学会)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research / Invited
  • [Presentation] Experimental study on drag force and pitching moment stability of drifting object2017

    • Author(s)
      山上路生
    • Organizer
      International Symposium on Engineering and Applied Science, Osaka(国際学会)
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] easonability of cyclic floodplain rejuvenation for biodiversity and flood management in Japanese lowland rivers2017

    • Author(s)
      永山滋也
    • Organizer
      th Asian Wetland Symposium (AWS2017); Wetlands for Sustainable Life -. Saga
    • Related Report
      2017 Annual Research Report
    • Int'l Joint Research
  • [Presentation] “木曽川の歴史を踏まえ今できること,今後やれること”2017

    • Author(s)
      永山滋也
    • Organizer
      応用生態工学会名古屋 フィールドシンポジウムin木曽川「河川環境の保全・再生を目指して」.応用生 態工学会名古屋支部
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] “河川,都市,農地における淡水生物保全の事例”2017

    • Author(s)
      永山滋也
    • Organizer
      2017年度日本魚類学会年会シ ンポジウム「淡水魚保全における河川行政との連携」.日本魚類学会
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Presentation] 洪水時における礫州上への種子着床に関する検討2017

    • Author(s)
      大石哲也
    • Organizer
      平成29年度全国大会第72回年次学術講演会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 河川植生の維持管理~基本と実践~2017

    • Author(s)
      大石哲也
    • Organizer
      第53回水工学に関する夏期研修会
    • Related Report
      2017 Annual Research Report
  • [Presentation] 洪水に伴う礫州内への種子供給と土砂移動特性の関係性とそれが初期の植物相に与える影響について2017

    • Author(s)
      大石哲也
    • Organizer
      河川環境保全を力学的視点から考える集い
    • Related Report
      2017 Annual Research Report
    • Invited
  • [Book] 河道内氾濫原の保全と再生,第2章 劣化する河道内氾濫原2019

    • Author(s)
      応用生態工学会編 永山滋也 原田守啓(分担執筆)
    • Total Pages
      216
    • Publisher
      技法堂
    • ISBN
      9784765534758
    • Related Report
      2019 Annual Research Report
  • [Book] 河川生態系の調査・分析方法2019

    • Author(s)
      永山滋也 (分担執筆)
    • Total Pages
      448
    • Publisher
      講談社
    • ISBN
      9784065169995
    • Related Report
      2019 Annual Research Report

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Published: 2017-04-28   Modified: 2021-02-19  

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