“立体”用海 多层受益

Core Insights - The Ministry of Natural Resources has released 12 typical cases of layered sea area usage rights, providing replicable and promotable practices for the utilization of marine areas nationwide [1] - Two cases from Dalian, namely Changhai County's layered aquaculture and Pulandian District's "fishing-solar complementary" project, have been selected as examples [1] Group 1: Changhai County Case - Changhai County has confirmed a sea area usage of 8.087 million acres, with 466,000 acres designated for layered aquaculture [2] - The layered usage rights allow aquaculture operators to cultivate shellfish, fish, and algae on the water surface and in the water body, while also breeding high-value species like abalone and sea cucumbers on the seabed [2] - The county's sea area usage fees have exceeded 380 million yuan for two consecutive years, with a projected fishery output of 732,000 tons and a fishery value of 10.09 billion yuan in 2024, reflecting a year-on-year growth of 3.7% [2] Group 2: Pulandian District Case - The "Dalian Coastal Tidal Flat Source Network and Energy Storage Integrated Demonstration Base Project" is the first coastal tidal flat power generation demonstration project in the province, covering an area of approximately 2,800 acres [2] - This project employs an innovative layered development model that integrates marine aquaculture with solar power generation, enhancing resource utilization and economic benefits [2] - The project emphasizes ecological protection, saving approximately 51,100 tons of standard coal annually and reducing carbon dioxide emissions by about 134,900 tons [3]