A large quantities of the Changjiang riverine, sediments expanded out of the estuary and entered the adjacent Qiantanjiang estuary and Jiangu coastal zone, when the estuary was filled.

• 河口湾被充填之后，长江带来的河流泥沙随之溢出河口湾，进入相邻的河口海岸地区，影响相邻沉积体系的形成和发育。