Keywords sediment transport;turbidity maximum;river mouth bar;subaqueous delta;coastline;tidal flats and tidal creeks;remote sensing;human activities;box-counting dimension;

• 泥沙输移;最大浑浊带;河口拦门沙;水下三角洲;岸线;潮滩潮沟;遥感;人类活动;盒子维;