在海底种下一片“草原”——河北唐山曹妃甸修复全国面积最大海草床

Core Viewpoint - The article highlights the successful restoration efforts of the largest seagrass bed in China located in Caofeidian, Tangshan, which has led to improved biodiversity and ecological functions, while also addressing the challenges posed by climate change and human activities [3][7][14]. Group 1: Seagrass Bed Restoration - The Caofeidian seagrass bed covers an area of 4,427 hectares and has been significantly impacted by climate change and human activities, leading to fragmentation and degradation [6][7]. - Restoration efforts began in 2019 under the "Bohai Sea Comprehensive Governance Action Plan," focusing on improving water quality and restoring ecological functions [7][9]. - A multi-faceted approach combining natural recovery and artificial restoration has been implemented, including the removal of fishing nets over 500 hectares and the use of seedling transplantation techniques [10][11]. Group 2: Monitoring and Assessment - The restoration process includes a comprehensive monitoring system that tracks environmental parameters such as plant density, water quality, and sediment characteristics [6][12]. - As of now, 938 hectares of seagrass bed restoration has been completed, with significant increases in biodiversity, including an 85% rise in the number of benthic species [14]. - The establishment of a monitoring and evaluation system by the North Sea Bureau aims to assess the ecological, economic, and social benefits of the restoration efforts [15]. Group 3: Ecological and Economic Impact - The restored seagrass bed has provided habitats for various marine species, enhancing the overall marine ecosystem and improving carbon storage capabilities [14]. - The seagrass bed acts as a natural filter, reducing nutrient pollution and improving water quality, which is crucial for sustaining marine life [14]. - The integration of ecological restoration with economic development is being promoted to ensure long-term sustainability and benefits for local communities [15].