中国边缘海沉积物有机碳分布及其储碳潜力研究进展

doi:10.11978/2024223

Abstract

Abstract:

Carbon participates in the global carbon cycle in various forms in the ocean, with total organic carbon (TOC) buried in marine sediments playing a crucial role. As a transition zone characterized by high physical energy and productivity, marginal seas store more than 80% of the organic carbon in the global ocean. Covering a total area of about 4.7 million square kilometers, China’s marginal seas possess significant carbon storage capacity and potential. With the implementation of China’s “Dual Carbon” initiative, research on marine carbon storage has become a prominent topic in recent years. This review summarizes the distribution characteristics of organic carbon in the sediments of China’s marginal seas, revealing a decreasing tendency from the Bohai Sea to the South China Sea. Notably, organic carbon content in coastal waters and near estuaries is significantly higher than in the deep sea. In addition, the main sources, influencing factors, and storage potential of organic carbon are analyzed. Moreover, the review provides an outlook on potential future research directions, aiming to offer insights for the related work on marine carbon storage and the carbon cycle in China’s marginal seas.

Key words: marginal seas, total organic carbon, rivers, currents, carbon storage potential

CLC Number:

P744.9

XU Weihai, ZHONG Qiuyan, YAN Wen, LI Gang. Research advances on organic carbon distribution and storage potential of sediments in the Chinese marginal seas[J].Journal of Tropical Oceanography, 2025, 44(5): 1-11.

Figures/Tables 3

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海域	沉积物有机碳含量/%	海域DIC 碳库/Tg	海域DOC 碳库/Tg	海域POC 碳库/Tg	整个海域固碳潜力/(Tg·a⁻¹)	参考文献
渤海	0.12~1.13	36.95	4.51	0.52	8.66	陈彬等(2011); 刘军等(2015); Wang等(2018a)
黄海	0.4~1.8	422.01	31.07	7.22	78.09	高学鲁等(2009); 商荣宁(2011)
东海	0.5~3.5	844.50	33.57	6.91	222.99	李宁等(2011); Chou等(2013)
南海	0.3~3.3	162872.64	3390.34	117.95	545.06	Dai等(2013); Huang等(2017)
中国边缘海		164176.10	3459.49	132.60	854.76	焦念志等(2018)

Research advances on organic carbon distribution and storage potential of sediments in the Chinese marginal seas

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