The effect is mainly as follows: blocking the flowout of ancient channel water, causing the fluctuation of ground water level, and inducing the interconnection between groundwater and lakewater.

• 这种潜在影响主要表现在三个方面：阻滞地下水的排泄，引起地下水位的升降，诱发玄武湖水与古河道水的贯通。