By comprehensive analysis of the control effects on saltwater intrusion and their impacts on flood control and drainage as well as influence on the south branch of the Yangtze River Estuary, the mediate narrowing scheme was recommended.

• 结果表明，综合咸潮倒灌的控制效果、防洪排涝影响及对南支的影响等，中束窄方案为本研究的推荐方案。