大型海藻在蓝碳中的作用及研究进展

白泽文, 刘正一, 赵燕, 张金浩, 秦松, 钟志海

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海洋湖沼通报 ›› 2025, Vol. 47 ›› Issue (2) : 193-201. DOI: 10.13984/j.cnki.cn37-1141.2025.02.024
研究综述

大型海藻在蓝碳中的作用及研究进展

  • 白泽文1,2,3, 刘正一2,3, 赵燕1, 张金浩4, 秦松2,3, 钟志海2,3*
作者信息 +

Roles and research progresses of macroalgae in blue carbon

  • BAI Zewen1,2,3, LIU Zhengyi2,3, ZHAO Yan1, ZHANG Jinhao4, QIN Song2,3, ZHONG Zhihai2,3
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摘要

通过海洋活动及海洋生物捕获碳的活动称为蓝碳。大型海藻可通过光合作用吸收水体中的无机碳,并将其转化为有机碳,实现CO2的固定。在生长过程中,藻体也会持续不断向水体中释放溶解性有机碳(DOC)和颗粒性有机碳(POC),对近海碳循环有着重要意义。大型海藻在蓝碳中的作用可通过碳核算来评估,即估算大型海藻的固碳量与储碳量,固碳量即为藻体本身碳含量与生长过程中释放的DOC、POC量的总和,储碳量为埋藏的碳量和惰性有机碳的和。本文从海洋碳酸盐系统、大型海藻光合作用及有机碳去向、碳核算、大型海藻蓝碳面临的挑战等四方面进行综述,以期为后续研究提供参考。

Abstract

The activity of capturing carbon through marine activities and marine organisms is called blue carbon. Macroalgae can convert inorganic carbon into organic carbon in seawater through photosynthesis and realize CO2 fixation. During the growth process, macroalgae continuously release dissolved organic carbon (DOC) and particulate organic carbon (POC) into seawater. The contribution amount of macroalgae in blue carbon can be evaluated through carbon accounting, that is, estimating the carbon sequestration and storage of macroalgae. The carbon sequestration is the sum of the carbon content of macroalgae, DOC and POC. The carbon storage is the sum of the buried carbon and inert organic carbon. In order to provide supports for future research, in this paper, we reviewed the marine carbonate system, photosynthesis and fate of organic carbon, carbon accounting, and the challenges faced by macroalgae blue carbon.

关键词

蓝碳 / 大型海藻 / 光合作用 / 碳核算

Key words

blue carbon / macroalga / photosynthesis / carbon accounting

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白泽文, 刘正一, 赵燕, 张金浩, 秦松, 钟志海. 大型海藻在蓝碳中的作用及研究进展. 海洋湖沼通报. 2025, 47(2): 193-201 https://doi.org/10.13984/j.cnki.cn37-1141.2025.02.024
BAI Zewen, LIU Zhengyi, ZHAO Yan, ZHANG Jinhao, QIN Song, ZHONG Zhihai. Roles and research progresses of macroalgae in blue carbon. Transactions of Oceanology and Limnology. 2025, 47(2): 193-201 https://doi.org/10.13984/j.cnki.cn37-1141.2025.02.024

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基金

国家自然科学青年基金(42006110);烟台市科技计划(2020MSGY058);山东省自然科学青年基金(ZR2019QD017)
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