(The following topics include but are not limited to)
water resource
Aquatic ecology
water environment
Water disaster management
water quality improvement
Utilization and Protection of Groundwater Resources
Basin ecological protection
Wetland protection and restoration
Desalination of seawater
sewage disposal
Biodiversity
Aquaculture
Aquaculture and Fisheries Engineering
Hydraulic Science
water conservancy project
Hydroelectric power generation
Flood control and sedimentation reduction in water conservancy hubs
Hydraulic machinery and its systems
Water and sand control
Comprehensive management of soil erosion
Hydrophysical Chemistry
Hydrogeology
Hydrological Cartography and Surveying
Marine Physical Chemistry
Marine Geography and Geology
Estuary Coast
Marine Surveying and Engineering
ocean resources
marine science 
Atmospheric Science
Solid state geophysics
Space Physics
Geochemistry
Geodesy