气候变化领域集成服务门户(CCPortal): Carbon Budget of Tidal Wetlands, Estuaries, and Shelf Waters of Eastern North America

CCPortal

DOI	10.1002/2017GB005790
	Carbon Budget of Tidal Wetlands, Estuaries, and Shelf Waters of Eastern North America
	Najjar R.G.; Herrmann M.; Alexander R.; Boyer E.W.; Burdige D.J.; Butman D.; Cai W.-J.; Canuel E.A.; Chen R.F.; Friedrichs M.A.M.; Feagin R.A.; Griffith P.C.; Hinson A.L.; Holmquist J.R.; Hu X.; Kemp W.M.; Kroeger K.D.; Mannino A.; McCallister S.L.; McGillis W.R.; Mulholland M.R.; Pilskaln C.H.; Salisbury J.; Signorini S.R.; St-Laurent P.; Tian H.; Tzortziou M.; Vlahos P.; Wang Z.A.; Zimmerman R.C.
发表日期	2018
ISSN	0886-6236
EISSN	1944-9224
起始页码	389
结束页码	416
卷号	32 期号:3
英文摘要	Carbon cycling in the coastal zone affects global carbon budgets and is critical for understanding the urgent issues of hypoxia, acidification, and tidal wetland loss. However, there are no regional carbon budgets spanning the three main ecosystems in coastal waters: tidal wetlands, estuaries, and shelf waters. Here we construct such a budget for eastern North America using historical data, empirical models, remote sensing algorithms, and process-based models. Considering the net fluxes of total carbon at the domain boundaries, 59 ± 12% (± 2 standard errors) of the carbon entering is from rivers and 41 ± 12% is from the atmosphere, while 80 ± 9% of the carbon leaving is exported to the open ocean and 20 ± 9% is buried. Net lateral carbon transfers between the three main ecosystem types are comparable to fluxes at the domain boundaries. Each ecosystem type contributes substantially to exchange with the atmosphere, with CO2 uptake split evenly between tidal wetlands and shelf waters, and estuarine CO2 outgassing offsetting half of the uptake. Similarly, burial is about equal in tidal wetlands and shelf waters, while estuaries play a smaller but still substantial role. The importance of tidal wetlands and estuaries in the overall budget is remarkable given that they, respectively, make up only 2.4 and 8.9% of the study domain area. This study shows that coastal carbon budgets should explicitly include tidal wetlands, estuaries, shelf waters, and the linkages between them; ignoring any of them may produce a biased picture of coastal carbon cycling. ©2018. American Geophysical Union. All Rights Reserved.
英文关键词	carbon cycle; coastal zone; estuaries; shelf waters; tidal wetlands
语种	英语
scopus关键词	acidification; carbon budget; carbon cycle; carbon dioxide; coastal zone; error analysis; estuarine dynamics; gas exchange; open ocean; remote sensing; tidal flat; wetland; North America
来源期刊	Global Biogeochemical Cycles
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/129845
作者单位	Department of Meteorology and Atmospheric Science, The Pennsylvania State University, University Park, PA, United States; U. S. Geological Survey, National Center, Reston, VA, United States; Department of Ecosystem Science and Management, The Pennsylvania State University, University Park, PA, United States; Department of Ocean, Earth, and Atmospheric Sciences, Old Dominion University, Norfolk, VA, United States; Department of Civil and Environmental Engineering, University of Washington, Seattle, WA, United States; College of Earth, Ocean, and the Environment, University of Delaware, Newark, DE, United States; Virginia Institute of Marine Science, College of William & Mary, Gloucester Point, VA, United States; School for the Environment, University of Massachusetts Boston, Boston, MA, United States; Department of Ecosystem Science and Management, Texas A&M University, College Station, TX, United States; Carbon Cycle and Ecosystems Office, NASA Goddard Space Flight Center, Greenbelt, MD, United States; Sm...
推荐引用方式 GB/T 7714	Najjar R.G.,Herrmann M.,Alexander R.,et al. Carbon Budget of Tidal Wetlands, Estuaries, and Shelf Waters of Eastern North America[J],2018,32(3).
APA	Najjar R.G..,Herrmann M..,Alexander R..,Boyer E.W..,Burdige D.J..,...&Zimmerman R.C..(2018).Carbon Budget of Tidal Wetlands, Estuaries, and Shelf Waters of Eastern North America.Global Biogeochemical Cycles,32(3).
MLA	Najjar R.G.,et al."Carbon Budget of Tidal Wetlands, Estuaries, and Shelf Waters of Eastern North America".Global Biogeochemical Cycles 32.3(2018).