E

This session explores hydrological and biogeochemical processes across the lake, sediment, and bedrock continuum and their roles in carbon dynamics and greenhouse gas emissions to the atmosphere. By integrating perspectives from hydrology, limnology, geology, geochemistry, ecology, and micrometeorology, the session aims to advance fundamental scientific understanding that contributes to climate change prediction and the achievement of carbon neutrality. We welcome studies addressing hydrological processes across the lake, sediment, and bedrock continuum, the coupled transfer of heat and solutes mediated by groundwater flow, and the interactions between biological communities and carbon cycling, from catchment to global scales. Contributions based on diverse approaches, including field observations, isotopic and geochemical tracers, mineralogical and petrological analyses, environmental DNA, remote sensing, and numerical simulations, are encouraged. Main topics expected in this session are Material formation and diagenetic processes in lake sediments and underlying bedrock, Hydrological controls on the transport of carbon, nutrients, and heat, Mineralogical and petrological processes governing water and rock interactions, Roles of aquatic vegetation and microbial communities in regulating carbon dynamics and greenhouse gas fluxes, Application of advanced methodologies such as isotope tracers, environmental DNA, and remote sensing, Implications of lake and subsurface science for next generation energy use, disaster mitigation, and environmental management.