Journal of Geographical Sciences, Volume. 30, Issue 6, 1021(2020)

Accumulation phenomena in fluvial processes and the corresponding stochastic model

Huan JING1... Deyu ZHONG1,2,*, Hongwu ZHANG1, Xufang SHI3 and Yanjun WANG1 |Show fewer author(s)
Author Affiliations
  • 1. State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
  • 2. State Key Laboratory of Plateau Ecology and Agriculture, Qinghai University, Xining 810016, China
  • 3. School of Water Resources and Electric Power, Qinghai University, Xining 810016, China
  • show less
    Figures & Tables(11)
    Accumulated riverbed degradation in the studied cross-sections downstream of dams on the Colorado River
    Changes in channel width after dam construction in the studied cross-sections downstream of dams on the Missouri River
    Longitudinal adjustment of the studied channel reaches downstream of dams
    Accumulated sedimentation in the Sanmenxia Reservoir area and lower reaches of the Yellow River
    Diagram showing the accumulation effects of external disturbances in fluvial processes
    Comparison between the measured and calculated characteristic river variables in the studied cross-sections and channel reaches
    Changes in characteristic river variables following dam construction
    Relationships between α, α/vand relative variation in peak discharge before and after dam construction (1-Qpost /Qpre)
    • Table 1.

      Characteristic river parameters for the studied cross-sections and channel reaches (Williams and Wolman, 1987; Jia, 1992; Peng et al., 2016; Yang et al., 2017)

      View table
      View in Article

      Table 1.

      Characteristic river parameters for the studied cross-sections and channel reaches (Williams and Wolman, 1987; Jia, 1992; Peng et al., 2016; Yang et al., 2017)

      ProjectRiverAverage pre- dam daily discharge (m3/s)Average post- dam daily discharge (m3/s)Studied cross-section or reachDistance(km)VariableSurvey periodSurvey number
      HooverColorado520400CHD-1-CHD-310-36Riverbed degradation1935-194815
      Parker230340CPD-1-CPD-339-951938-197516
      Davis400340CDD-1-CDD-21-91948-197528
      Fort PeckMissouri200280MFP-1-MFP-39-75Channel width1936-19738
      Garrison600660MGD-1-MGD-332-541949-19766
      Gavins Point930740MGP-1-MGP-37-481955-19745
      DanjiangkouHanjiang13351091HJG-HZ3-270Water level1960-19766
      SanmenxiaYellow15221412XLD-LJ61-678Accumulated erosion and deposition amount1961-198421
      SZ-TG-1965-198420
      XiaolangdiYellow1266807XLD-LJ61-6782000-201516
      Three GorgesYangtze1402712873YC-HK30-8072003-201614
    • Table 2.

      Parameter values in equation (18)

      View table
      View in Article

      Table 2.

      Parameter values in equation (18)

      Vertical readjustmentαLateral readjustmentαOverall readjustment (entire reach)α
      CHD-1-CHD-30.30, 0.40, 0.30MGP-1-MGP-30.40, 0.45, 0.50SZ-TG0.40
      CPD-1-CPD-30.14, 0.22, 0.09MFP-1-MFP-30.18, 0.15, 0.05LYR (1968-1975)0.45
      CDD-1-CDD-20.17, 0.16MGD-1-MGD-30.60, 0.25, 0.40LYR (1976-1984)0.40
    • Table 3.

      Parameter values in equation (19)

      View table
      View in Article

      Table 3.

      Parameter values in equation (19)

      Longitudinal readjustmentα/v
      HJG-HZ (1965-1975)0.0160, 0.0120, 0.0090
      XLD-LJ (1961-1964)0.0065, 0.0060, 0.0042, 0.0038
      XLD-LJ (2003-2015)0.0100, 0.0050, 0.0050
      YC-HK (2003-2015)0.0033, 0.0033, 0.0025
    Tools

    Get Citation

    Copy Citation Text

    Huan JING, Deyu ZHONG, Hongwu ZHANG, Xufang SHI, Yanjun WANG. Accumulation phenomena in fluvial processes and the corresponding stochastic model[J]. Journal of Geographical Sciences, 2020, 30(6): 1021

    Download Citation

    EndNote(RIS)BibTexPlain Text
    Save article for my favorites
    Paper Information

    Received: Dec. 3, 2019

    Accepted: Feb. 8, 2020

    Published Online: Sep. 30, 2020

    The Author Email: ZHONG Deyu (zhongdy@mail.tsinghua.edu.cn)

    DOI:10.1007/s11442-020-1768-x

    Topics