Group 1: Marine Ecological Restoration - The Ministry of Natural Resources has initiated a campaign to collect typical cases of marine ecological protection and restoration, with the blue bay restoration action in Putian City being selected as a notable example [2] - The blue bay restoration project has restored 16.72 kilometers of coastline and 534 hectares of coastal wetlands, significantly enhancing the ecological resilience of the coastal area and promoting sustainable marine economic development [2][4] Group 2: Mazu Cultural and Economic Development - The Mazu City beach camp project, with a total investment of 120 million yuan, aims to integrate marine culture with economic development, featuring various recreational and dining facilities [4] - The project includes ecological restoration and reinforcement of the Mazu City seawall, focusing on biodiversity recovery and coastal protection [4][5] Group 3: Ecological Landscape and Biodiversity - The Ziyu Lake wetland restoration project, with an investment of 35 million yuan, aims to create diverse habitats and improve water quality, covering an area of 9.11 hectares [8] - After restoration, Ziyu Lake has transformed into an ecological landscape area, providing recreational opportunities for residents and enhancing local biodiversity [9] Group 4: Environmental Improvement and Economic Benefits - The restoration efforts have led to a 60% increase in the diversity index of benthic organisms and a 20% increase in bird diversity at the Mulan River estuary [14] - The ecological improvements have also benefited local aquaculture, with an increase of over 800 mu in seaweed cultivation area due to better water quality [14]

Core Viewpoint - The article highlights the successful implementation of the "Blue Bay" restoration initiative in Haikou, Hainan Province, which has significantly improved the marine ecological environment and biodiversity in the region [3][4]. Group 1: Project Overview - The "Blue Bay" restoration project was approved in 2019 and aims to enhance the environmental quality of nearshore waters and restore ecological functions over a two-year period [3]. - The project includes three sub-projects: ecological restoration of Haikou's West Coast, Haikou Bay, and the Dongzhai Port National Nature Reserve [3][4]. Group 2: Achievements - By the end of September 2022, all construction components of the "Blue Bay" project were completed and passed acceptance inspection, leading to significant improvements in the marine ecological environment [4]. - The project has restored important marine biological resources and habitats, achieving the goal of "clear water, green shores, clean beaches, beautiful bays, and lovely islands" [4]. Group 3: Specific Measures - The West Coast ecological restoration project involved measures such as sand replenishment, construction of ecological reefs, and removal of abandoned platforms, resulting in the restoration of 4.6 kilometers of coastline and an increase in dry beach area to 243,000 square meters [5]. - A total of 152,510 cubic meters of sand replenishment was completed, and 5,147 square meters of ecological reefs were constructed [5]. Group 4: Community Impact - The restoration has led to wider beaches and clearer waters, attracting more tourists and enhancing the local recreational experience [6]. - The West Coast park has been upgraded to create a coastal ecological leisure space, featuring a series of scenic spots that enhance the area's aesthetic appeal [6].