气候变化领域集成服务门户(CCPortal): Fate of dissolved black carbon in the deep Pacific Ocean

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DOI	10.1038/s41467-022-27954-0
	Fate of dissolved black carbon in the deep Pacific Ocean
	Yamashita Y.; Nakane M.; Mori Y.; Nishioka J.; Ogawa H.
发表日期	2022
ISSN	2041-1723
卷号	13 期号:1
英文摘要	Black carbon (BC), a byproduct of biomass and fossil fuel combustion, may impact the climate because it can be stored on Earth’s surface for centuries to millennia. Dissolved BC (DBC) occurs ubiquitously in the ocean. However, the DBC cycle in the ocean has not been well constrained. Here, we show the basin-scale distribution of DBC in the Pacific Ocean and find that the DBC concentrations in the deep Pacific Ocean decrease along with deep-ocean meridional circulation. The DBC concentration is negatively correlated with apparent oxygen utilization, a proxy of the integrated flux of sinking particles, in the deep Pacific Ocean, implying that DBC is removed from the deep ocean to abyssal sediments through sorption onto sinking particles. The burial flux of BC to abyssal sediments is estimated to be 0.040–0.085 PgC yr−1, corresponding to 1.5–3.3% of the anthropogenic CO2 uptake by the ocean. © 2022, The Author(s).
语种	英语
scopus关键词	black carbon; climate conditions; flux measurement; fossil fuel; human activity; Pacific Ocean; Pacific Ocean
来源期刊	Nature Communications
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/251256
作者单位	Faculty of Environmental and Earth Science, Hokkaido University, Sapporo, Japan; Graduate School of Environmental Science, Hokkaido University, Sapporo, Japan; Pan-Okhotsk Research Center, Institute of Low Temperature Science, Hokkaido University, Sapporo, Japan; Atmosphere and Ocean Research Institute, The University of Tokyo, Kashiwa, Japan
推荐引用方式 GB/T 7714	Yamashita Y.,Nakane M.,Mori Y.,et al. Fate of dissolved black carbon in the deep Pacific Ocean[J],2022,13(1).
APA	Yamashita Y.,Nakane M.,Mori Y.,Nishioka J.,&Ogawa H..(2022).Fate of dissolved black carbon in the deep Pacific Ocean.Nature Communications,13(1).
MLA	Yamashita Y.,et al."Fate of dissolved black carbon in the deep Pacific Ocean".Nature Communications 13.1(2022).