Practice and Consideration on Restoration of Sandbar-Lagoon Geomorphology: A Case Study on Fudu Estuary Sandbar

Abstract With the development and construction of the coastal economic belt, the marine ecological environment is under great pressure. The typical river mouth sandbar - lagoon hydro-geomorphological system is facing unprecedented threats, and it is extremely urgent to restore this typical geomorphological system. Taking the Fudu River Mouth Sandbar as a case study, combining with the characteristics of surrounding marine resources and the current situation of exploitation and utilization of sea area, this paper puts forward various ecological restoration measures including the construction of landscape ecological corridor, sandbar maintenance, demolition of reclamation works and structures, landscape park construction, on-line water quality monitoring, fisherman wharf reconstruction, etc. to solve the major problems in this area. This paper also suggests that, during the implementation of marine ecological restoration, the following measures should be taken, including to establish a library of coastline remediation and restoration projects within the study area, give full play to the technological advantages of universities and research institutes at the national and provincial levels, strengthen scientific and technological support, and implement the target-oriented responsibility system for marine ecological remediation and restoration by taking marine ecological remediation and restoration targets as indicators to assess cadres’ performance