Phycology Laboratory, Department of Botany, Biological Sciences Center, Federal University of Santa Catarina, Florianopolis, Santa Catarina, Brazil.
CCMAR - Centre of Marine Sciences, University of Algarve, Faro, Portugal.
Sci Total Environ. 2020 Aug 10;729:138745. doi: 10.1016/j.scitotenv.2020.138745. Epub 2020 Apr 17.
Marine climate change mitigation initiatives have recently attracted a great deal of interest in the role of natural carbon sinks, particularly on coastal systems. Brown seaweeds of the genus Sargassum are the largest canopy-forming algae in tropical and subtropical environments, with a wide global distribution on rocky reefs and as floating stands. Because these algae present high amounts of biomass, we suggest their contribution is relevant for global carbon stocks and consequently for mitigating climate change as CO remover. We modelled global distributions and quantified carbon stocks as above-ground biomass (AGB) with machine learning algorithms and climate data. Sargassum AGB totaled 13.1 Pg C at the global scale, which is a significant amount of carbon, comparable to other key marine ecosystems, such as mangrove forests, salt marshes and seagrass meadows. However, specific techniques related to bloom production and management, or the utilization of biomass for biomaterials, should be fostered.
海洋气候变化缓解倡议最近引起了人们对自然碳汇作用的极大兴趣，特别是在沿海系统中。马尾藻属的褐藻是热带和亚热带环境中最大的冠层形成藻类，在岩石礁和漂浮物上广泛分布。由于这些藻类具有大量的生物量，我们认为它们的贡献与全球碳储量有关，因此可以作为 CO 去除剂来缓解气候变化。我们使用机器学习算法和气候数据来模拟全球分布并量化地上生物量 (AGB)。全球范围内的马尾藻 AGB 总量为 13.1 Pg C，这是一个相当大的碳储量，与其他关键海洋生态系统（如红树林、盐沼和海草草甸）相当。然而，应该促进与藻华产生和管理相关的特定技术，或者利用生物质生产生物材料。
