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].