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首页> 外文会议>International Symposium on Flood Defence vol.1; 20020910-13; Beijing(CN) >Cause analysis of the exceptional flood water elevation rise in the hinterland of Pearl River Delta
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Cause analysis of the exceptional flood water elevation rise in the hinterland of Pearl River Delta

机译：珠江三角洲腹地洪水超标升高的原因分析

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摘要

Pearl River Delta is one of the most developed areas in the southeast coast of China. The flood control security of the delta plays an important role in the regional social and economic development. Because of the complex constitute of rivers and river mouths and the collective hydrodynamic influences of run-off and tide, the flood flow in the delta shows extremely complex hydrodynamic characteristics temporally and spatially. The floodwater elevation in the hinterland of the delta exceptionally rises since 90's because of the out-of-order exploitation of water-and-soil resources since 80's, and therefore the flood control safety of area has been seriously threatened. Based on the exceptional rise phenomena during "94.6" and "98.6", this paper analyzes the interior and exterior causes for the exceptional flood elevation rise in the hinterland so as to provide the foundation of flood countermeasures for the area.
机译：珠江三角洲是中国东南沿海最发达的地区之一。三角洲的防洪安全在区域社会经济发展中发挥着重要作用。由于河流和河口的复杂构成以及径流和潮汐的共同水动力影响，三角洲的洪水在时间和空间上显示出极其复杂的水动力特征。由于自80年代以来对水土资源的无序开采，三角洲腹地的洪水高度自90年代以来异常上升，因此该地区的防洪安全受到严重威胁。基于“ 94.6”和“ 98.6”期间异常上升现象，分析了内陆异常高程上升的内外原因，为该地区的洪水对策提供基础。

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