• Journal of Geographical Sciences
  • Vol. 30, Issue 3, 468 (2020)
Yanjun WANG, Baosheng WU*, and Deyu ZHONG
Author Affiliations
  • State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing 100084, China
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    DOI: 10.1007/s11442-020-1738-3 Cite this Article
    Yanjun WANG, Baosheng WU, Deyu ZHONG. Adjustment in the main-channel geometry of the lower Yellow River before and after the operation of the Xiaolangdi Reservoir from 1986 to 2015[J]. Journal of Geographical Sciences, 2020, 30(3): 468 Copy Citation Text show less
    Figure 1
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    Figure 5
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    Fig. 7. Figure 7
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    Fig. 10. Figure 10
    Figure 11
    Fig. 11. Figure 11
    Figure 12
    Fig. 12. Figure 12
    Figure 13
    Fig. 13. Figure 13
    ReachAbove HYKHYK-JHTJHT-GCGC-SKSK-TCPTCP-ASSK-ASAS-LKLK-LJ
    River length (km)103.17100.8072.63118.2035.6328.2463.87101.84167.80
    Number of cross-sections111071397161322
    Table 1.

    The distribution of the cross-section in different reaches in the LYR

    YearMain-channel width (m)Main-channel depth (m)Main-channel cross-sectional geomorphic coefficient (m-0.5)
    Above HH-JJ-GG-SS-AA-LL-liAbove HH-JJ-GG-SS-AA-LL-liAbove HH-JJ-GG-SS-AA-LL-li
    19861575248919058626244934621.721.781.952.823.644.523.9323.0627.9822.3410.396.864.915.47
    19871621239319078716294904631.621.701.842.793.444.383.8024.9128.8323.7110.567.305.065.66
    19881184168411266756114694411.852.082.353.093.604.814.1118.6319.7514.288.426.874.505.11
    19891362194010676856144644371.771.692.332.813.394.413.7020.9026.1314.049.327.324.885.64
    1990116516049697125894634391.781.592.082.693.304.273.5419.1825.2314.949.917.365.045.92
    1991131014329006785834654381.571.542.052.723.124.053.3023.1124.6214.609.597.735.326.34
    199285912267075564374133862.331.672.323.233.334.213.6712.6020.9111.477.316.284.835.36
    199397814797815354503963782.171.532.002.913.404.123.2614.4025.1714.017.966.254.835.96
    199487812457755584554023782.191.471.922.873.223.862.9413.5124.0214.478.246.635.196.61
    199584010208005464574003751.951.651.872.472.963.692.8714.8519.3315.149.467.225.426.75
    199610209787475684604073782.161.902.402.583.164.103.3914.7816.4411.389.236.804.925.73
    19978509345595534574103781.951.671.822.102.763.442.9714.9518.2913.0111.187.755.886.55
    19987979066044914103783582.141.841.942.262.963.833.1513.1916.3812.689.816.855.086.00
    19998787785734984193743571.771.741.792.032.653.532.9116.7416.0313.3411.027.735.476.49
    20009058456054714283623522.461.921.651.922.563.362.8712.2315.1614.9311.318.075.676.54
    20019818286364684223653472.672.061.761.822.643.362.8211.7413.9614.3211.867.795.696.59
    20028539556494554213563333.212.251.882.162.743.563.319.1013.7313.579.877.495.305.51
    20038548416364674163583283.832.962.532.693.184.193.907.639.799.988.046.414.514.65
    20049109096664434323623433.752.933.092.913.324.484.018.0410.308.347.226.274.254.62
    200595110957064534413613453.643.113.213.113.544.894.458.4810.638.276.855.933.884.17
    200695712737224574503643534.072.823.073.433.614.664.307.5912.648.766.245.884.094.36
    2007110011377334724623663574.183.683.243.603.684.854.487.949.168.356.035.853.954.22
    2008120111667274914643673583.953.363.383.793.894.824.538.7710.157.985.845.543.974.18
    2009122512757645174723663604.003.403.434.023.944.914.628.7510.528.075.665.523.904.11
    2010125813587635214683713634.123.393.534.094.095.094.768.6110.877.825.585.293.784.00
    2011129914437735234673743654.223.493.794.274.305.254.888.5410.897.345.365.033.683.91
    2012122414668455254683773684.343.513.644.354.575.414.948.0610.907.995.264.743.593.88
    2013126114888705344623843724.363.533.564.464.625.574.938.1410.938.295.184.663.523.92
    2014125914808735474713843724.363.913.774.524.615.525.118.149.847.835.174.713.553.78
    2015128015228795694723873774.554.083.854.464.695.634.977.869.577.695.364.633.503.90
    Table 1.

    Annual post-flood main-channel cross-sectional geometry parameters for different sub-reaches of the lower Yellow River from 1986-2015

    PeriodsVariablesAbove HYKHYK-JHTJHT-GCGC-SKSK-ASAS-LKLK-LJ
    1986-1999${{y}_{{{B}^{0.5}}}}$0.750.560.550.760.820.870.88
    ${{y}_{H}}$1.030.980.920.720.730.780.74
    ${{y}_{\xi }}$0.730.570.601.061.131.121.19
    ${{y}_{{{B}^{0.5}}}}\text{-}1$-0.25*-0.44*-0.45*-0.24-0.18-0.13-0.12
    ${{y}_{H}}\text{-}1$0.03-0.02-0.08-0.28*-0.27*-0.22*-0.26*
    2000-2015${{y}_{{{B}^{0.5}}}}$1.211.401.241.071.061.021.03
    ${{y}_{H}}$2.572.342.152.201.771.591.71
    ${{y}_{\xi }}$0.470.600.580.490.600.640.60
    ${{y}_{{{B}^{0.5}}}}\text{-}1$0.210.400.240.070.060.020.03
    ${{y}_{H}}\text{-}1$1.57*1.34*1.15*1.20*0.77*0.59*0.71*
    Table 2.

    Statistical parameters of the cross-sectional geometry of the main channel before and after the XLDR began operation

    Yanjun WANG, Baosheng WU, Deyu ZHONG. Adjustment in the main-channel geometry of the lower Yellow River before and after the operation of the Xiaolangdi Reservoir from 1986 to 2015[J]. Journal of Geographical Sciences, 2020, 30(3): 468
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