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Interrelation between hydrogeomorphic and vegetative processes in rivers.

Research Project

Project/Area Number 11650531
Research Category

Grant-in-Aid for Scientific Research (C)

Allocation TypeSingle-year Grants
Section一般
Research Field 水工水理学
Research InstitutionThe University of Tokushima

Principal Investigator

OKABE Takeshi  The University of Tokushima, Fac. of Engineering, Prof., 工学部, 教授 (10035652)

Co-Investigator(Kenkyū-buntansha) KITANO Toshikazu  Nagoya Industrial Univ., Fac. of Engineering, Lecturer, 工学部, 講師 (00284307)
KAMADA Mahito  The University of Tokushima, Fac. of Engineering, Associate Prof., 工学部, 助教授 (40304547)
NAKANO Susumu  The University of Tokushima, Fac. of Engineering, Associate Prof., 工学部, 助教授 (50198157)
TAKEBAYASHI Hiroshi  The University of Tokushima, Fac. of Engineering, Assistant Prof., 工学部, 助手 (70325249)
YUUKI Toyokatsu  Anan Technical College, Associate Prof., 助教授 (50158333)
Project Period (FY) 1999 – 2001
Project Status Completed (Fiscal Year 2001)
Budget Amount *help
¥3,400,000 (Direct Cost: ¥3,400,000)
Fiscal Year 2001: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 2000: ¥600,000 (Direct Cost: ¥600,000)
Fiscal Year 1999: ¥2,100,000 (Direct Cost: ¥2,100,000)
Keywordsriver morphology / alternate bar / tidal flat / river bed variation / plant community / colonization success / sediment transport / data base / 河床変動計算 / 浮遊砂濃度 / GISデータベース / 河床変動計算法 / 乱流モデル / 植生分布・動態モデル / 流砂量
Research Abstract

1) Analysis of long-term riverbed variation : Regard to the Yoshino River, Shikoku, Japan, a data base of riverbed geometry was composed, with respect to the past 40 years. The cross-sectional shapes of individual measuring were represented by fixed 101 points. The geomorphic process was analised with the aid of empirical orthogonal function method. As a result, remarkable bed aggradation was observed and its major modes were identified.
2) Vegetative and hydro-geomorphic river survey and analysis : Regarding to the Naka and Yoshino River, vegetation survey on sediment bars was were widely carried out. In addition, colonization success of riverine vegetation was observed referring to aerial photographs. Colonization traits were quantitatively related to historical hydro-geomorphic conditions of the reivers.
3) Numerical reproduction of meshed vegetation maps of alternate bars : Detailed meshed vegetation maps of alternate bars formed in a downstream reach of the Yoshino River were produced by field surveys with the aid of an low aerial photography technique. A preference curve model and a neural network model were applied to judge dominant vegetation types of mesh areas from physical habitat attributes. The both models showed similar accuracy of slightly higher and lower than 70 %, however, significant difference was found in the resultant maps.
4) Improvement of simulation model for riverbed variation : Mechanism of sediment suspension in flows passing vegetated areas was experimentally clarified, and its simulation model was developed. In addition, characteristics of self-formed streams and alternate bars of mixed sediment were investigated based on numerical simulation.

Report

(4 results)
  • 2001 Annual Research Report   Final Research Report Summary
  • 2000 Annual Research Report
  • 1999 Annual Research Report
  • Research Products

    (44 results)

All Other

All Publications (44 results)

  • [Publications] 岡部 健士: "砂州上の植物群落立地の物理環境特性とこれを利用した群落分布の予測"環境システム研究. Vol.27. 323-329 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 鎌田 磨人: "吉野川の砂州上におけるヤナギ群落およびアキグミ群落の分布と立地特性"環境システム研究. Vol.27. 331-337 (1999)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 湯城 豊勝: "那賀川下流における樹木群落成立とその水理学的影響"水工学論文集. Vol.44. 843-848 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 郡 麻里: "吉野川河道内の砂州上におけるアキグミ群落の分布状況と立地特性"環境システム研究論文集. Vol.28. 353-358 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 荒木健太郎: "那賀川中・下流域における樹木群落の分布と立地特性"環境システム研究論文集. Vol.28. 247-254 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takeshi Okabe: "Experimental study on hydrodynamic structure of flow on vegetated riverbeds"Proc. of Twelfth Congress of the APD-IAHR. Vol.1. 311-319 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 岡部 健士: "樹木状植生を持つ河床上の流れの乱流構造とその数値解析法"水工学論文集. Vol.45. 847-852 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hiroshi Takebayashi: "STREAM FORMATION PROCESS BETWEEN CONFINING BANKS OF STRAIGHT WIDE CHANNELS"Proc. 2nd IAHR Symposium on River, Coastal and Estuarine Morphodynamics. Vol.2. 575-584 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takeshi Okabe: "Relationship between willow community establishment and hydrogeomorphic process in a reach of alternate bars"Proc. of XXIX IAHR Congress, Beijing, Theme B. Vol.1. 340-345 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 荒木 健太郎: "那賀川中・下流域における物理的環境の変化と樹木の分布拡大パターン"環境システム研究論文発表会講演集. Vol.29. 51-56 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 古東 哲: "砂州上の植物群落分布の再現モデル"環境システム研究論文集. Vol.29. 171-178 (2001)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 湯城 豊勝: "樹木状植生を持つ河床上における浮遊砂濃度の形成機構"水工学論文集. Vol.46. 701-706 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 古東 哲: "河状履歴指標による砂州上の植物群落分布の再現"水工学論文集. Vol.46. 935-940 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 竹林 洋史: "網状流路の時空間的な変動特性"水工学論文集. Vol.46. 737-742 (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 中野 晋: "統計的手法による吉野川下流部の長期地形変動解析"徳島大学工学部研究報告. No.47(印刷中). (2002)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] 中野 晋: "噴流による細砂混合底泥の洗掘限界"水工学論文集. Vol.44. 671-676 (2000)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Okabe,T., Y. Ueda, M. Kamada and H. Umeoka: "Physical condition in plant communities on a sand-bar and modeling of their distribution patterns"Environmental System Research. 27. 323-329 (1999)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nakano S., and T. Ohkawa: "Critical scour condition of mud bed mixed with silt and fine sand due to submerged inpinged Jet"Annual Journal of Hydraulic Engineering, JSCE. 44. 671-676 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Araki, K., Kamada, M., Yuuki, T., Okabe, T.: "Distribution of woody plant communities in relation to habitat characteristics in middle and lower reaches of the Naka River, Shikoku, Japan"Environmental System Research. 28. 247-254 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kohri, M., Kamada, M., Okabe, T., Nakagoshi, N.: "Distribution pattern of Elaeagnus umbellata communities on the gravel bars in relation to hydrogeomorphic factors in the Yoshino River, Shikoku. Japan"Environmental System Research. 28. 353-358 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Okabe, T., Hamai, N., Yuuki, T.: "Experimental study on hydrodynamic structure on flow on vegetated river beds"Proc. of XX-th Congress of APD-IAHR, Bangkok. 311-319 (2000)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yuuki, T., Okabe,T., Hamai, N.: "Hydrodynamic structure and numerical method of flows on riverbeds vegetated by woody plants."Annual Journal of Hydraulic Engineering, JSCE. 45. 847-852 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takebayashi, H., Egashira, S., Okabe, T.: "Stream formation process between confining banks of straight channels"Proc. of 2nd IAHR Symposium on River coastal and Estuarine Morphodynamics. 575-584 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Okabe, T., Anase, Y., Kamada, M.: "Relationship between willow community establishment and hydrogeomorphic process in a reach of alternate bars"Proc. of XXIX Congress of IAHR, Beijing, Theme B. 340-345 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Kotoh, S., T.Kishimoto, T. Okabe,T. and M. Kamada: "Numerical modeling of plant-community distribution in riverine gravel bars"Environmental System Research. 29. 171-178 (2001)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Yuuki, T., Okabe, T.: "Hydrodynamic mechanism of suspended load on riverbeds vegetated by woody plants"Annual Journal of Hydraulic Engineering, JSCE. 46. 701-706 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Takebayashi, H., Egashira, S., Okabe, T.: "Temporal and spatial variation characteristics of braided streams"Annual Journal of Hydraulic Engineering, JSCE. 46. 737-742 (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Nakano, S. and T. Okabe: "Statistical analysis of long-term topography change in lower reaches of the Yoshino River"Bulletin of Faculty of Engineering, The University of Tokushima. 47 (in press). (2002)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      2001 Final Research Report Summary
  • [Publications] Hiroshi Takebayashi: "Stream formation process between confining banks of straight wide Channels"Proc. 2nd IAHR Symposium on River Coastal and Estuarine Mophodynamics, Obihiro, Japan. 575-584 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] Takeshi Okabe: "Relationship between willow community establishment and hydrogeomorphic process in a reach of alternate bars"Proc. XXIX IAHR Congress, Beijing, Theme B : Environmental Hydraulics and Eco-Hydraulics. 1. 340-345 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 古東哲: "砂州上の植物群落分布の再現モデル"環境システム研究論文集. 29. 171-178 (2001)

    • Related Report
      2001 Annual Research Report
  • [Publications] 中野晋: "統計的手法による吉野川下流部の長期地形変動解析"徳島大学工学部研究報告. 47(印刷中). (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 湯城豊勝: "樹木状植生を持つ河床上における浮遊砂濃度の形成機構"水工学論文集. 46. 701-706 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] 古東哲: "河状履歴指標による砂州上の植物群落分布の再現"水工学論文集. 46. 935-940 (2002)

    • Related Report
      2001 Annual Research Report
  • [Publications] Takeshi Ckabe: "Experimental study on hydrodynamic structure of flow on vegetated riverbeds"Proc.of APD-IAHR, BANGKOK. Vol.1. 311-319 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 湯城豊勝: "樹木状植生をもつ河床上の乱流構造とその数値解析法"水工学論文集. Vol.45. 847-852 (2001)

    • Related Report
      2000 Annual Research Report
  • [Publications] 郡麻里: "吉野川河道内の砂州上におけるアキグミ群落の分布状況と立地特性"環境システム研究論文集. Vol.28. 353-358 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 荒木健太郎: "那賀川中・下流域における樹木群落の分布と立地特性"環境システム研究論文集. Vol.28. 247-254 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 宇野宏司: "四国地方における稀小種「シオマネキ」の生息環境特性"地球環境シンポジウム講演論文集. 第8巻. 99-104 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] Hiroshi takebayashi: "Formative condition of self-formed stream in straight channel"Proc.of APD-IAHR, BANGKOK. Vol.1. 227-236 (2000)

    • Related Report
      2000 Annual Research Report
  • [Publications] 中野 晋: "吉野川下流部の地形変動と洪水による河口砂州変形計算"海岸工学論文集. Vol.46. 641-645 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 岡部 健士: "砂州上の植物群落立地の物理環境特性とこれを利用した群落分布の予測"環境システム研究. Vol.27. 323-329 (1999)

    • Related Report
      1999 Annual Research Report
  • [Publications] 岡部 健士: "吉野川の最近の河状と植生"学会誌 吉野川. 第3号. 85-89 (2000)

    • Related Report
      1999 Annual Research Report
  • [Publications] 湯城 豊勝: "那賀川下流における樹木群落成立とその水理学的影響"水工学論文集. Vol.44. 843-848 (2000)

    • Related Report
      1999 Annual Research Report

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Published: 1999-04-01   Modified: 2016-04-21  

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