When the pumping time was 90 days, only the water level near five pumping wells dropped slightly, and a small groundwater flow to the wells could be observed, forming five small cones of depression, as shown in Figure 4. The water level at the location of the pumping wells was 8.0 m. The overall groundwater flow direction was still from west to east. According to the Zone Budget module, the base flow from zone 1 to zone 2 was 3023.1 m3/d, which is 100.6 m3/d less than the 3123.7 m3/d at the simulation time of 60 days. The reason is that the installation of intermediate pumping wells leads to a reduction in water flow to the wetland (zone 2), which can be described as reduced base flow. At this time, a groundwater divide has formed between the pumping wells and the wetland (Figure 4, red dotted line), the water level in the wetland and cone of depression