Research Article
Hydrochemical Characteristics and Formation Mechanism of Strontium-Rich Groundwater in Shijiazhuang, North China Plain
Figure 1
Study area and sampling locations: (1) water abundance of groundwater <10 m3/h·m; (2) water abundance of groundwater is between 10 and 30 m3/h·m; 3) water abundance of groundwater is between 30 and 50 m3/h·m; (4) water abundance of groundwater is between 50 and 70 m3/h·m; (5) water abundance of groundwater >70 m3/h·m; (6) boundary of the drainage area; (7) villages; (8) sampling points of shallow groundwater; and (9) sampling points of deep groundwater.