GEOLOGICAL PERSPECTIVE OF GROUNDWATER AND SURFACE WATER INTERACTIONS AND ITS RESOURCE-ENVIRONMENTAL IMPACTS
This research investigates groundwater-surface water interactions from a geological perspective, emphasizing their resource-environmental impacts across diverse systems. Four interconnected subtopics are explored: (1) lacustrine groundwater discharge (LGD) in maar lakes, highlighting groundwater’s role in lake formation and maintenance; (2) crustal-scale LGD in geothermal dominated basins, revealing its efficacy on lithium exports and enrichments; (3) LGD as a driver of greenhouse gas emissions in thermokarst lakes, addressing permafrost-carbon feedbacks under climate change; and (4) LGD in Lake Baikal, unraveling comprehensive LGD components in world-largest freshwater lake system. Employing isotopic tracers, geophysical techniques, and numerical modeling, this study quantifies LGD fluxes, elucidates nutrient and greenhouse gas transport mechanisms. Findings contribute to fundamental knowledge of groundwater-surface water interactions from shallow weathering to crustal scales, offering scalable frameworks for global applications.
By bridging geological, hydrological, and eco-environmental perspectives,
this research addresses pressing challenges in water resource management,
climate adaptation, and resource exploration, underscoring the critical role of groundwater in sustaining aquatic systems amid escalating environmental changes.
Additional information: Mr. ZUO Jinchao, jczuo@connect.hku.hk