In china, many estuarine and coastal areas are covered by fine silts and mud, and there are a lot of sediments to be suspended and transported under the action of tidal current and wind waves.

• 我国河口海岸多为粉沙淤泥覆盖,在风浪掀沙和水流输沙的作用下,有较多泥沙悬浮和输移。