Core Viewpoint - Hainan is innovatively implementing a three-dimensional layered rights allocation for marine areas, transforming the traditional flat usage model into a more efficient and harmonious coexistence of various marine projects, thereby unlocking new dimensions for marine economic development [2][4]. Group 1: Innovative Marine Space Management - The new approach allows for the division of marine space into four layers: water surface, water body, seabed, and subsoil, enabling different projects to coexist without conflicts over space [4][5]. - The implementation of this layered rights allocation is seen as a necessary choice to improve resource utilization efficiency and resolve conflicts in marine usage [5][6]. Group 2: Practical Applications and Benefits - The first project under this new model is the Hainan seabed data center, which occupies only 14.46 hectares across three layers, leaving the seabed space available for other uses [3][7]. - Other projects, such as the cross-Ningyuan River connection and the municipal connection project in Sanya, have successfully utilized layered marine space, marking a significant advancement in marine management practices [7]. Group 3: Regulatory Framework and Future Directions - The new regulations, effective from May 1, provide a solid legal foundation for the layered rights allocation, promoting a shift from two-dimensional to three-dimensional marine management [5][6]. - Future plans include further research and the establishment of mechanisms for the exit of inefficient marine usage, aiming for sustainable development of marine resources [7].

Core Viewpoint - The article emphasizes the importance of marine ecological environment protection and the need for multi-layered and comprehensive utilization of marine resources in China, highlighting the shift from a flat management approach to a three-dimensional development model [4][6][7]. Group 1: Policy and Development Initiatives - The Central Financial Committee meeting chaired by General Secretary Xi Jinping called for enhanced marine ecological protection and comprehensive governance of key sea areas [4]. - The exploration of multi-layered marine usage rights began with pilot projects in Jiangsu and Fujian provinces to address overlapping marine usage needs [6][7]. - The Ministry of Natural Resources issued a notice in November 2023 to promote the exploration of layered marine usage rights for various projects, marking a significant shift in marine management practices [7]. Group 2: Economic Impact and Growth - China's marine economy is projected to exceed 10 trillion yuan in 2024, accounting for 7.8% of the national GDP [8]. - Guangdong's new marine industries are expected to generate an added value of 41.1 billion yuan, while Zhejiang has approved 180 layered marine usage projects covering approximately 165,000 acres [8]. - The innovative development strategy of the 1 million-kilowatt offshore photovoltaic project in Shandong combines solar power generation with shellfish farming, enhancing space utilization and overall development returns [8].