调水调沙以来黄河尾闾河道冲淤演变及其影响因素
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刘清兰, 陈俊卿, 陈沈良
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Spatiotemporal evolution of Yellow River estuarine channel and its influencing factors since the water-sediment regulation scheme
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LIU Qinglan, CHEN Junqing, CHEN Shenliang
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表2 2002—2017年黄河尾闾河道水沙变化及冲淤特征
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Tab. 2 Scour and siltation related with water and sediment changes in the Yellow River estuarine channel
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| 年份 | 年来水量(亿m3) | 年来沙量(亿t) | 年冲淤量(106 t) | 冲淤占比(%) | 汛期冲淤量(106 t) | 汛期冲刷效率(kg/m3) | | 2002 | 41.9 | 0.54 | -23.88 | -43.98 | -22.10 | -6.67 | | 2003 | 192.7 | 3.69 | -31.51 | -8.54 | -33.45 | -2.66 | | 2004 | 198.8 | 2.58 | 2.85 | 1.11 | -12.57 | -0.82 | | 2005 | 206.8 | 1.91 | -22.59 | -11.83 | -28.23 | -1.87 | | 平均 | 160.1 | 2.18 | 14.46 | -15.81 | -24.089 | -3.00 | | 2006 | 191.7 | 1.49 | 9.65 | 6.48 | -2.565 | -0.17 | | 2007 | 204.0 | 1.47 | -3.51 | -2.39 | -12.335 | -0.78 | | 2008 | 145.6 | 0.77 | -1.99 | -2.59 | -7.68 | -0.75 | | 2009 | 132.9 | 0.56 | -8.21 | -14.63 | -13.86 | -1.45 | | 2010 | 193.0 | 1.67 | 2.97 | 1.78 | -7.88 | -0.49 | | 2011 | 184.2 | 0.93 | -10.86 | -11.73 | -15.75 | -1.29 | | 2012 | 282.5 | 1.83 | 1.36 | 0.74 | 1.28 | 0.06 | | 2013 | 236.9 | 2.73 | -1.43 | -0.52 | -9.67 | -0.55 | | 2014 | 114.3 | 0.30 | -4.25 | -14.12 | -5.59 | -0.82 | | 平均 | 187.2 | 1.31 | -1.39 | -4.12 | -8.23 | -0.69 | | 2015 | 133.6 | 0.31 | 7.58 | 24.14 | 7.44 | 0.88 | | 2016 | 81.9 | 0.11 | 7.56 | 71.32 | 1.42 | 0.27 | | 2017 | 89.6 | 0.08 | -4.86 | -63.14 | 1.59 | 0.33 | | 平均 | 101.7 | 0.17 | 2.64 | 10.77 | 3.48 | 0.50 |
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