globalchange  > 气候变化与战略
DOI: 10.1029/2017GB005863
论文题名:
Cycling and Budgets of Organic and Black Carbon in Coastal Bohai Sea, China: Impacts of Natural and Anthropogenic Perturbations
作者: Fang Y.; Chen Y.; Tian C.; Wang X.; Lin T.; Hu L.; Li J.; Zhang G.; Luo Y.
刊名: Global Biogeochemical Cycles
ISSN: 0886-6236
EISSN: 1944-9224
出版年: 2018
卷: 32, 期:6
语种: 英语
英文关键词: anthropogenic effect ; atmospheric deposition ; biogeochemical cycle ; black carbon ; carbon budget ; carbon cycle ; carbon flux ; coastal zone ; dust ; human activity ; marine ecosystem ; organic carbon ; perturbation ; river water ; seawater ; source-sink dynamics ; storm ; terrestrial ecosystem ; Bohai Sea ; Pacific Ocean ; Yellow Sea
学科: black carbon ; Bohai Sea ; coastal seas ; cycling and budgets ; organic carbon ; spring dust storms
中文摘要: Organic carbon (OC) cycling in coastal seas that connect terrestrial and open oceanic ecosystems is a dynamic and disproportionately important component of oceanic and global carbon cycles. However, OC cycling in coastal seas needs to be better constrained, particularly for geochemically important black carbon (BC). In this study, we conducted multimedium sampling campaigns, including atmospheric deposition, river water, seawater, and sediments in coastal Bohai Sea (BS) in China. We simultaneously quantified particulate OC (POC), particulate BC (PBC), dissolved OC (DOC), and dissolved BC (DBC) and investigated the cycling and budgets of OC and BC. The cycling and budgets of each individual particulate phase (i.e., POC versus PBC) and dissolved phase (i.e., DOC versus DBC) displayed similar patterns, but there were some distinct differences between the particulate and dissolved phases. In the particulate phases, atmospheric and riverine delivery dominated exogenous inputs (>80%), sequestration to sediments dominated removal (~70%), and exchanges in the Bohai Strait resulted in net export. In the dissolved phases, exchanges in the Bohai Strait dominated both import and export and were in a relatively dynamic equilibrium. We found that both natural perturbations, such as spring dust storms, and anthropogenic activity, exerted significant impacts on BS carbon cycling. The integration of regional and global source-to-sink process databases made it clear that future BC studies should calculate PBC and DBC fluxes independently. Continuous field observational studies, more details of the biogeochemical processes involved, and consistent BC quantification methods are urgently needed to elucidate coastal OC and BC cycling. ©2018. American Geophysical Union. All Rights Reserved.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/160222
Appears in Collections:气候变化与战略

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作者单位: Key Laboratory of Cities' Mitigation and Adaptation to Climate Change in Shanghai, College of Environmental Science and Engineering, Tongji University, Shanghai, China; State Key Laboratory of Organic Geochemistry, Guangzhou Institute of Geochemistry, Chinese Academy of Sciences, Guangzhou, China; Shanghai Institute of Pollution Control and Ecological Security, Shanghai, China; Key Laboratory of Coastal Environmental Processes and Ecological Remediation, Yantai Institute of Coastal Zone Research, Chinese Academy of Sciences, Yantai, China; State Key Laboratory of Environmental Geochemistry, Guiyang Institute of Geochemistry, Chinese Academy of Sciences, Guiyang, China; Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, State Oceanic Administration, Qingdao, China; Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao, China

Recommended Citation:
Fang Y.,Chen Y.,Tian C.,et al. Cycling and Budgets of Organic and Black Carbon in Coastal Bohai Sea, China: Impacts of Natural and Anthropogenic Perturbations[J]. Global Biogeochemical Cycles,2018-01-01,32(6)
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