Dr. Liu has broad research interests in the fields of hydrology/hydrogeology, limnology, landscape ecology, environmental science and sustainability. His research group and collaborators are dedicated to developing new research ideas to solve critical water resources problems in regions and countries around the world. Specific examples of his research themes include:
• Influence of climatic variability/change on water resources and wetland habitats;
• Closed-basin lakes and paleoclimates;
• Watershed processes and modeling: predictions of ungauged river basins with integrated modeling and geospatial (remote sensing and GIS) technologies; watershed contaminant transport, etc.;
• Complexity of interacting surface-water and groundwater systems;
• Groundwater flow and mass transport in hydrogeological systems; and
• Inverse/optimization problems.