气候变化领域集成服务门户(CCPortal): Misconceptions of the marine biological carbon pump in a changing climate: Thinking outside the export box

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DOI	10.1111/gcb.17124
	Misconceptions of the marine biological carbon pump in a changing climate: Thinking outside the export box
	Frenger, Ivy; Landolfi, Angela; Kvale, Karin; Somes, Christopher J.; Oschlies, Andreas; Yao, Wanxuan; Koeve, Wolfgang
发表日期	2024
ISSN	1354-1013
EISSN	1365-2486
起始页码	30
结束页码	1
卷号	30 期号:1
英文摘要	The marine biological carbon pump (BCP) stores carbon in the ocean interior, isolating it from exchange with the atmosphere and thereby coregulating atmospheric carbon dioxide (CO2). As the BCP commonly is equated with the flux of organic material to the ocean interior, termed export flux, a change in export flux is perceived to directly impact atmospheric CO2, and thus climate. Here, we recap how this perception contrasts with current understanding of the BCP, emphasizing the lack of a direct relationship between global export flux and atmospheric CO2. We argue for the use of the storage of carbon of biological origin in the ocean interior as a diagnostic that directly relates to atmospheric CO2, as a way forward to quantify the changes in the BCP in a changing climate. The diagnostic is conveniently applicable to both climate model data and increasingly available observational data. It can explain a seemingly paradoxical response under anthropogenic climate change: Despite a decrease in export flux, the BCP intensifies due to a longer reemergence time of biogenically stored carbon back to the ocean surface and thereby provides a negative feedback to increasing atmospheric CO2. This feedback is notably small compared with anthropogenic CO2 emissions and other carbon-climate feedbacks. In this Opinion paper, we advocate for a comprehensive view of the BCP's impact on atmospheric CO2, providing a prerequisite for assessing the effectiveness of marine CO2 removal approaches that target marine biology.
英文关键词	atmospheric CO2; biological carbon pump; carbon cycle; climate change; export flux; marine carbon sequestration; marine carbon storage; ocean circulation
语种	英语
WOS研究方向	Biodiversity & Conservation ; Environmental Sciences & Ecology
WOS类目	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS记录号	WOS:001137525000001
来源期刊	GLOBAL CHANGE BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/289220
作者单位	Helmholtz Association; GEOMAR Helmholtz Center for Ocean Research Kiel; Consiglio Nazionale delle Ricerche (CNR); Istituto di Scienze Marine (ISMAR-CNR); GNS Science - New Zealand
推荐引用方式 GB/T 7714	Frenger, Ivy,Landolfi, Angela,Kvale, Karin,et al. Misconceptions of the marine biological carbon pump in a changing climate: Thinking outside the export box[J],2024,30(1).
APA	Frenger, Ivy.,Landolfi, Angela.,Kvale, Karin.,Somes, Christopher J..,Oschlies, Andreas.,...&Koeve, Wolfgang.(2024).Misconceptions of the marine biological carbon pump in a changing climate: Thinking outside the export box.GLOBAL CHANGE BIOLOGY,30(1).
MLA	Frenger, Ivy,et al."Misconceptions of the marine biological carbon pump in a changing climate: Thinking outside the export box".GLOBAL CHANGE BIOLOGY 30.1(2024).