[1]Key Laboratory of Shale Gas and Geoengineering;
Institute of Geology and Geophysics;
Chinese Academy of Sciences;
Beijing 100029;
China.;
[2]University of Chinese Academy of Sciences;
Beijing 100049;
China.;
[3]Bureau of Hydrology (Center of Water Resources Information);
The Ministry of Water Resources of the People's Republic of China;
Beijing 100053;
China.;
[4]Groundwater Monitoring Center;
the Ministry of Water Resources of the People's Republic of China;
Beijing 100053;
China.;