My research focuses on elucidating the natural and anthropogenic contributions to the changes in global hydrological and biogeochemical cycles. My expertise encompasses the global methane (CH4) modelling in lakes, process-based modelling, global terrestrial nitrogen (N) modelling, model-data fusion approaches, and machine learning models. My detailed research areas include: (1) Biogeochemical cycles (in particular, C, N and CH4) in lakes and reservoirs; (2) Resilience analysis and optimal control of water-energy-food-environment nexus; and (3) Reservoir operations under changing climate.