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首页> 外文期刊>Hydrological Processes >Hydrological controls on the evolution of the Yellow River Delta: An evaluation of the relationship since the Xiaolangdi Reservoir became fully operational
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Hydrological controls on the evolution of the Yellow River Delta: An evaluation of the relationship since the Xiaolangdi Reservoir became fully operational

机译：黄河三角洲演变的水文控制：小浪底水库全面投入运营以来的关系评价

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摘要

The Xiaolangdi Reservoir, which was constructed in the trunk of the Yellow River, has controlled the flow process into the mouth of the Yellow River to a significant degree since it began fully operating in late 2002. To evaluate the relationship between the new hydrological process and the evolution of the Yellow River estuary, this study presents a detailed investigation of the morphodynamic adjustment in the river mouth using remote sensing satellite images. It was shown that the mouth channel rapidly extended in length from 2002 to 2004, although it was shrinking during 1999-2001, and then it expanded very slowly with considerable shifts at the place where the river flow mixes with seawater. In late 2007, an avulsion occurred on the northern bank of the mouth channel, far upstream from where the river water mixes with seawater. During 2008-2012, the new mouth channel extended its length into the sea at a slow pace, whereas since late 2013, it has divided into two branches that alternately discharge the main flow into the sea. Although both the water and the sediment input in the new hydrological process are much smaller in quantity than before, the geomorphic adjustments still manifest an excessive input of both. Moreover, after the avulsion, the seasonal pattern of land accretion in the river mouth has been characterized, with erosion occurring mostly in the wet seasons and accretion mostly occurring in the dry seasons.
机译：小浪底水库始建于黄河干流，自2002年底全面投入运营以来，已在很大程度上控制了黄河入海口的水流过程。在黄河口的演变过程中，本研究使用遥感卫星图像对河口的形态动力调节进行了详细研究。结果表明，从2002年到2004年，尽管1999-2001年间河道不断缩小，但河道的长度迅速扩大，然后在河水与海水混合的地方非常缓慢地发生了很大的变化。 2007年底，河口河北岸发生撕裂，距河水与海水混合的上游很远。在2008年至2012年期间，新的入海口通道以缓慢的速度延伸入海，而自2013年底以来，它已分成两个分支，交替地将主要水流排入海中。尽管新水文过程中的水和泥沙输入量都比以前少得多，但地貌调整仍显示两者都输入过多。此外，在撕裂之后，已经表征了河口土地增生的季节性模式，侵蚀主要发生在湿季，而增生主要发生在旱季。

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  • 来源
    《Hydrological Processes》 |2018年第24期|3633-3649|共17页
  • 作者

    Zhou Yuanyuan; Huang He Qing; Ran Lishan; Shi Changxing; Su Teng;

  • 作者单位

    Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China;

    Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China;

    Univ Hong Kong, Dept Geog, Hong Kong, Hong Kong, Peoples R China;

    Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China;

    Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Water Cycle & Related Land Surface Proc, Beijing 100101, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    dam operation; estuarine evolution; hydrological process change; remote sensing; Yellow River Delta;

    机译：大坝运行;河口演变;水文过程变化;遥感;黄河三角洲;

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