Karst groundwater cycle model, hydrochemical characteristics and tectonic controls of the Shuimocao karst spring basin in the Northern Taihang Mountains, China
Randomized trial investigates groundwater recharge sources and water cycle patterns in a karst spring basin, suggesting key implications for ecological conservation.
Key Points
This study aims to clarify recharge sources, water cycle mechanisms, and water-rock interaction in a karst spring basin.
Conducted a 1:50,000 hydrogeological survey and continuous monitoring of spring and river discharge.
Collected and analyzed 38 hydrochemical and 26 isotope samples for water quality assessment.
Implemented hydrochemical identification, isotope tracing, and hydrological dynamic analysis to explore basin features.
Identified primary groundwater recharge from Tongtian River (51.93%), followed by Sanhui River (28.79%) and Yebei runoff (19.29%).
Demonstrated anthropogenic activities significantly disturb spring water quality and contribute to drying events.
Revealed tectonically influenced water cycle patterns, highlighting surface water infiltration and fault regulation for spring discharge.