globalchange  > 气候变化与战略
DOI: 10.1029/2019JG005307
论文题名:
Carbon Cycling in the World's Deepest Blue Hole
作者: Yao P.; Wang X.C.; Bianchi T.S.; Yang Z.S.; Fu L.; Zhang X.H.; Chen L.; Zhao B.; Morrison E.S.; Shields M.R.; Liu Y.N.; Bi N.S.; Qi Y.Z.; Zhou S.; Liu J.W.; Zhang H.H.; Zhu C.J.; Yu Z.G.
刊名: Journal of Geophysical Research: Biogeosciences
ISSN: 21698953
出版年: 2020
卷: 125, 期:2
语种: 英语
英文关键词: anoxia ; carbon cycling ; dissolved carbon ; radiocarbon ; sulfur cycling ; Yongle blue hole
Scopus关键词: anoxic conditions ; biogeochemistry ; carbon cycle ; concentration (composition) ; dissolved inorganic carbon ; dissolved organic carbon ; global change ; microbial community ; radiocarbon dating ; Pacific Ocean ; South China Sea
英文摘要: Blue holes are unique geomorphological features with steep biogeochemical gradients and distinctive microbial communities. Carbon cycling in blue holes, however, remains poorly understood. Here we describe potential mechanisms of dissolved carbon cycling in the world's deepest blue hole, the Yongle Blue Hole (YBH), which was recently discovered in the South China Sea. In the YBH, we found some of the lowest concentrations (e.g., 22 μM) and oldest ages (e.g., 6,810 years before present) of dissolved organic carbon, as well as the highest concentrations (e.g., 3,090 μM) and the oldest ages (e.g., 8,270 years before present) of dissolved inorganic carbon observed in oceanic waters. Sharp gradients of dissolved oxygen, H2S, and CH4 and changes in bacterially mediated sulfur cycling with depth indicated that sulfur- and/or methane-based metabolisms are closely linked to carbon cycling in the YBH. Our results showed that the YBH is a unique and easily accessible natural laboratory for examining carbon cycling in anoxic systems, which has potential for understanding carbon dynamics in both paleo and modern oceans—particularly in the context of global change. ©2020. American Geophysical Union. All Rights Reserved.
Citation statistics:
资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/159497
Appears in Collections:气候变化与战略

Files in This Item:

There are no files associated with this item.


作者单位: Frontiers Science Center for Deep Ocean Multispheres and Earth System, and Key Laboratory of Marine Chemistry Theory and Technology, Ministry of Education, Ocean University of China, Qingdao, China; Laboratory for Marine Ecology and Environmental Science, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China; College of Chemistry and Chemical Engineering, Ocean University of China, Qingdao, China; Department of Geological Sciences, University of Florida, Gainesville, FL, United States; College of Marine Geosciences, Ocean University of China, Qingdao, China; Sansha Track Ocean Coral Reef Conservation Research Institute, Sansha, China; College of Marine Life Sciences, Ocean University of China, Qingdao, China; Geochemical and Environmental Research Group, Texas A&M UniversityTX, United States

Recommended Citation:
Yao P.,Wang X.C.,Bianchi T.S.,et al. Carbon Cycling in the World's Deepest Blue Hole[J]. Journal of Geophysical Research: Biogeosciences,2020-01-01,125(2)
Service
Recommend this item
Sava as my favorate item
Show this item's statistics
Export Endnote File
Google Scholar
Similar articles in Google Scholar
[Yao P.]'s Articles
[Wang X.C.]'s Articles
[Bianchi T.S.]'s Articles
百度学术
Similar articles in Baidu Scholar
[Yao P.]'s Articles
[Wang X.C.]'s Articles
[Bianchi T.S.]'s Articles
CSDL cross search
Similar articles in CSDL Cross Search
[Yao P.]‘s Articles
[Wang X.C.]‘s Articles
[Bianchi T.S.]‘s Articles
Related Copyright Policies
Null
收藏/分享
所有评论 (0)
暂无评论
 

Items in IR are protected by copyright, with all rights reserved, unless otherwise indicated.