中国强混合河口最大浑浊区成因研究
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摘要: 最大浑浊区在潮汐河口普遍存在,并对河床冲淤演变有重大影响.本文在笔者多年研究基础上,首次系统地探讨我国强混合河口最大浑浊区的形成机理.认为此类河口形成最大浑浊区的根本原因在于床面水流切应力(或流速)有规律地先沿程增强继而递减,而潮波不对称引起的相向净输沙是导致泥沙在最大浑浊区聚集的重要因子,絮凝沉降则加强了泥沙的这种滞留富集趋势.此外,细泥沙补给是最大浑浊区发育的物质基础,并主要控制其浓度和规模.
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