Figure 6. Contour of groundwater level for 1470 days of pumping
the piedmont plain area is no longer recharged to the wetland, and the
amount of water recharged from the wetland to the piedmont plain aquifer
was 2702.9 m3/d. This process is the third process of
wetland–aquifer interaction. Figures 7 and 8 show the relationship
between base flow and induced infiltration with time. In the next
numerical simulation, the third process is continued, and the induced
infiltration from the wetland to the piedmont plain aquifer gradually
increases. The induced infiltration increases to 6386.4
m3/d at 7200 days.
To visually observe the groundwater divide formed between the piedmont
plain and the wetland due to groundwater exploitation, three calculation
points are set up to observe the water level change between the piedmont
plain and the wetland in order to determine the specific location of the
groundwater divide. The coordinates of the five calculation points are
shown in Table 2.
Table 2 Location of head observation wells