马尾藻场碳汇研究获新进展

Core Viewpoint - The research team from the South China Sea Institute of Oceanology has made significant progress in understanding the formation mechanism of large macroalgae's refractory dissolved organic carbon (RDOC) and its carbon sequestration capacity, with findings published in the journal Environmental Science & Technology [1] Group 1: Research Findings - The study highlights that marine carbon sinks, particularly large macroalgae ecosystems, have substantial carbon sequestration potential, which is crucial for mitigating climate change [1] - The research focused on the Sargassum ecosystem in Weizhou Island, Guangxi, utilizing a combination of field monitoring and laboratory experiments to investigate biomass changes throughout the lifecycle of Sargassum [1] - The results indicate that RDOC serves as a vital carrier for long-term carbon sequestration in the ocean, with Sargassum's metabolic activities playing a dominant role in the formation of RDOC [1] Group 2: Methodology and Implications - The research established a precise estimation method for the carbon sequestration capacity of Sargassum RDOC, providing new insights and methodologies for quantitative assessments of carbon sequestration by large macroalgae [1] - The findings reveal the significant role of large macroalgae in carbon sequestration, contributing to a better understanding of their impact on marine carbon sinks [1]