Water resources management; Technical services, technology development, technical consultation, technology exchanges, technology transfer, technology promotion; Water conservancy related consulting services; Environmental consulting services; Water pollution control; Water environment pollution prevention and control services; Engineering and technical research and experimental development; Development of intelligent water system; Research and development of unconventional water source utilization technology; R&D of resource recycling technology; Soil erosion control services; Environmental emergency management services; Information system operation and maintenance services; Soil pollution control and remediation services; Satellite remote sensing application system integration; Hydrological services; Planning and design management.