【摘 要】
：
河口两侧实施围垦工程改变了河口形态和动力环境,对河口污染物输运也将产生-定影响.以连云港市赣榆县沙枉河口为例,采用平面二维扩散输运模型对河口两侧高滩围垦工程实施前后
【机 构】
：
连云港港30万吨级航道建设指挥部,连云港市赣榆县水利局,江苏省水利厅,南京水利科学研究院
【基金项目】
：
国家重点研发计划项目（2016YFC0401505）,国家自然科学基金资助项目（51309157）
论文部分内容阅读
河口两侧实施围垦工程改变了河口形态和动力环境,对河口污染物输运也将产生-定影响.以连云港市赣榆县沙枉河口为例,采用平面二维扩散输运模型对河口两侧高滩围垦工程实施前后沙枉河口污染物输运的影响范围进行了数值计算,分析了河口两侧浅滩围垦工程对河口污染物输运范围的影响.分析结果表明,河口两侧浅滩实施围垦工程使得河口过流通道缩窄,具有排放口向深水迁移的效应,有利于河口受污水体向动力较强的深水区稀释;但围垦工程实施使得通道和前沿区域动力改变,当两侧围垦工程前沿水流减弱时,动力变化不利于污染物输运;相反,围垦工程促使前
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