Sediment transport in estuarine and coastal is not only one of import problems when the human explore the natural, but also the one of major contents of Land and Sea Interactions in the Coastal Zone.

• 河口海岸的泥沙问题涉及到人类开发河口海岸自然资源的活动，并且是陆海相互作用研究的重要组成内容之一，对它的研究具有重要的科学意义和应用价值。