Research Article

Hydrochemistry and Isotope Hydrology for Groundwater Sustainability of the Coastal Multilayered Aquifer System (Zhanjiang, China)

Figure 3

Groundwater level contour maps for the multilayered aquifer system: (a) the unconfined aquifer, (b) the middle confined aquifer, and (c) the deep confined aquifer.
(a)
(b)
(c)