The specialty of river protection and engineering includes the design and implementation of methods to manage, protect and improve the ecological and hydrological functions of rivers and water environments. This field investigates and controls erosion and sedimentation factors, stabilization of river bed and walls, and protection of related ecosystems. Key activities in this specialty include the design and implementation of protective structures, such as seawalls and seawalls, flood and seasonal flow management, and restoration of natural habitats to preserve biodiversity. Also, this field has contributed to the sustainable use of water resources and reduction of natural hazards, including floods and landslides, and plays an important role in sustainable development and environmental protection.