Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Sampling locations in the alluvial-pluvial plain of Hutuo River (APPHR) in Shijiazhuang City (G3 and G4 share the same area in the horizontal direction, but are located in different depths in the vertical direction). G1: Fissure and pore water unit in the valley in Gangnan Reservoir and Huangbizhuang Reservoir, G2: Pore water unit in the top APPHR, G3: Shallow pore water unit in the middle APPHR, G4: a Deep pore water unit in the middle APPHR.
