在开展海洋碳汇核算过程中，尚存在核算体系不完善、技术基础薄弱、市场机制不健全等问题。例 如，在海水养殖过程中产生的溶解有机碳等碳汇要素尚未纳入核算，容易造成碳汇能力低估；滨海湿地 外源碳输入与近海生态系统陆源碳通量缺乏统一规范，存在重复计算的可能；现有数据主要依赖局部试 点，尚未建立覆盖广泛且具高精度的海洋碳通量监测体系；微生物碳泵、贝藻类养殖固碳机制等关键过 程研究相对滞后，制约了核算方法与模型的系统构建与应用推广。同时，海洋碳汇市场需求明显低于森 林碳汇，难以形成有效的规模化交易，蓝色信贷等配套金融工具覆盖有限，缺乏对碳汇开发与运营的反 哺和激励。 探索开展海洋碳汇核算，应以标准制定为突破口，以科技创新为驱动，以市场机制为保障，尽快构 建起"核算—交易—增值"的全产业链体系。 完善核算标准。制定和完善具有约束力的国家级核算标准，明确不同类型海洋碳汇的核算边界、周 期与技术方法，确保核算的一致性与科学性。统一数据采集、报送与应用机制，推动多部门协同与信息 共享，为政策制定和蓝碳市场交易提供坚实的数据支持。 海洋的固碳能力远超陆地生态系统，海洋碳汇(又称"蓝碳")不仅涵盖红树林、盐沼、海草床、浮游 植物等通过 ...

Core Insights - The article highlights the transformation of fishermen in Xiangshan from selling marine products to trading carbon credits, marking a new revenue stream for fishing villages [1][3] - The first auction of blue carbon in China took place in Xiangshan, where 2,340.1 tons of blue carbon were sold at a price of 106 yuan per ton, showcasing the potential of marine carbon trading [3][4] Blue Carbon Trading - The blue carbon auction on February 28, 2023, was a milestone event, with over 70 rounds of bidding from more than 20 enterprises and institutions [3] - The carbon sequestration potential of local seaweed, such as seaweed and kelp, has been scientifically quantified, with estimates indicating that the salt marsh ecosystem in Xiangshan can sequester approximately 102,800 tons of carbon annually [3][4] Economic and Ecological Benefits - Xiangshan, known for its rich marine resources, has implemented industry standards for measuring and trading blue carbon, enhancing the economic viability of seaweed farming compared to traditional fish farming [5][6] - The local government is actively developing a blue carbon trading market and has completed several research reports to support this initiative [5][6] Innovative Financial Mechanisms - Xiangshan has established a comprehensive mechanism for ecological resource development, including a blue carbon ecological carbon account and innovative financing options for blue carbon projects [6] - The region has successfully completed its first blue carbon pledge financing deal worth 248,000 yuan, paving the way for financial support for marine carbon credit projects [6] Community Development and Shared Prosperity - The "three rights separation" reform in Huangbi'ao village has allowed local fishermen to benefit from marine resource management, leading to increased income and community development [9][10] - The integration of technology and reform has resulted in a thriving aquaculture industry, significantly improving the economic conditions of previously impoverished villages [10]

Core Viewpoint - Dongying City is actively developing its marine carbon sink resources, focusing on blue carbon ecosystems, which have significant ecological value and strategic importance for carbon sequestration [3][4]. Group 1: Marine Carbon Sink Development - Dongying City has a vast potential for marine carbon sink resources, primarily distributed in salt marshes and seagrass beds, contributing to ecological and carbon sink strategies [3]. - Since 2021, the Dongying Marine Development and Fisheries Bureau has conducted carbon storage surveys in key estuarine wetlands, establishing a baseline for the carbon storage capacity of the salt marsh ecosystem [3][4]. - The city is also involved in the development of technical standards for marine carbon sink monitoring, participating in the formulation of guidelines for measuring carbon sinks in coastal salt marshes and seagrass beds [3]. Group 2: Ecological Restoration and Carbon Sequestration - The implementation of marine ecological protection and restoration projects has enhanced the carbon sequestration capacity of coastal ecosystems, with significant restoration efforts including 4,316 hectares of salt marsh and 111.1 hectares of seagrass beds since 2019 [4]. - The successful trading of 1,811.8 tons of carbon credits from the restoration projects marks a significant step in realizing the economic value of marine carbon sinks [4]. Group 3: Future Plans and Strategic Focus - Moving forward, Dongying City aims to further explore its marine carbon sink potential and enhance its role in marine economic development through ongoing assessments and monitoring of carbon storage in the Yellow River Delta [5]. - The city plans to strengthen research on marine ecological protection and restoration, identifying suitable areas for carbon sequestration to provide pathways for enhancing carbon sinks in the region [5]. - There is a strategic focus on leveraging the unique advantages of the Yellow River Delta's marine resources to promote the development of marine carbon sink projects and explore their application in various scenarios [5].