Multimolecular tracers of terrestrial carbon transfer across the pan-Arctic: C-14 characteristics of sedimentary carbon components and their environmental controls

doi:10.1002/2015GB005204

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	Multimolecular tracers of terrestrial carbon transfer across the pan-Arctic: C-14 characteristics of sedimentary carbon components and their environmental controls
	Feng, Xiaojuan ; Gustafsson, Orjan 3,4; Holmes, R. Max ; Vonk, Jorien E.; van Dongen, Bart E.; Semiletov, Igor P.; Dudarev, Oleg V.; Yunker, Mark B.; Macdonald, Robie W.; Wacker, Lukas 13
刊名	GLOBAL BIOGEOCHEMICAL CYCLES
	2015
卷号	29 期号:11 页码:1855-1873
ISSN号	0886-6236
DOI	10.1002/2015GB005204
文献子类	Article
英文摘要	Distinguishing the sources, ages, and fate of various terrestrial organic carbon (OC) pools mobilized from heterogeneous Arctic landscapes is key to assessing climatic impacts on the fluvial release of carbon from permafrost. Through molecular C-14 measurements, including novel analyses of suberin- and/or cutin-derived diacids (DAs) and hydroxy fatty acids (FAs), we compared the radiocarbon characteristics of a comprehensive suite of terrestrial markers (including plant wax lipids, cutin, suberin, lignin, and hydroxy phenols) in the sedimentary particles from nine major arctic and subarctic rivers in order to establish a benchmark assessment of the mobilization patterns of terrestrial OC pools across the pan-Arctic. Terrestrial lipids, including suberin-derived longer-chain DAs (C-24,C-26,C-28), plant wax FAs (C(24,26,2)8), and n-alkanes (C-27,C-29,C-31), incorporated significant inputs of aged carbon, presumably from deeper soil horizons. Mobilization and translocation of these old terrestrial carbon components was dependent on nonlinear processes associated with permafrost distributions. By contrast, shorter-chain (C-16,C-18) DAs and lignin phenols (as well as hydroxy phenols in rivers outside eastern Eurasian Arctic) were much more enriched in C-14, suggesting incorporation of relatively young carbon supplied by runoff processes from recent vegetation debris and surface layers. Furthermore, the radiocarbon content of terrestrial markers is heavily influenced by specific OC sources and degradation status. Overall, multitracer molecular C-14 analysis sheds new light on the mobilization of terrestrial OC from arctic watersheds. Our findings of distinct ages for various terrestrial carbon components may aid in elucidating fate of different terrestrial OC pools in the face of increasing arctic permafrost thaw.
学科主题	Environmental Sciences ; Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
电子版国际标准刊号	1944-9224
出版地	WASHINGTON
WOS关键词	ROTHAMSTED CLASSICAL EXPERIMENTS ; ORGANIC-MATTER ; PERMAFROST-CARBON ; PLANT BIOPOLYMERS ; LIGNIN OXIDATION ; MAJOR ELEMENTS ; CLIMATE-CHANGE ; BEAUFORT SEA ; NORTH SLOPE ; OLD CARBON
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
语种	英语
出版者	AMER GEOPHYSICAL UNION
WOS记录号	WOS:000368907500001
资助机构	Chinese National Key Development Program for Basic Research [2014CB954003, 2015CB954201] ; Knut and Alice Wallenberg Foundation ; headquarters of the Russian Academy of Sciences ; Swedish Research Council ; US National Oceanic and Atmospheric Administration ; Russian Foundation of Basic Research [13-05-12028, 13-05-12041] ; Swedish Polar Research Secretariat ; Nordic Council ; Swedish Royal Academy of Sciences ; Government of the Russian Federation [2013-220-04-157] ; Tomsk [14.Z50.31.0012] ; Russian Scientific Foundation [15-17-20032] ; Swiss National Science foundation (SNF) [200021_140850] ; US National Science Foundation (NSF) [OCE-9907129, OCE-0137005, OCE-0526268] ; Stanley Watson Chair for Excellence in Oceanography ; ETH Zurich ; NWO Rubicon [825.10.022] ; Veni [863.12.004] ; UK NERC [NE/I024798/1] ; NSF [0436118, 0732555, 1107774] ; WHOI ; NERC [NE/I024798/1] Funding Source: UKRI ; Directorate For Geosciences [1107774] Funding Source: National Science Foundation ; Natural Environment Research Council [NE/I024798/1] Funding Source: researchfish
内容类型	期刊论文
源URL	[http://ir.ibcas.ac.cn/handle/2S10CLM1/25678]
专题	植被与环境变化国家重点实验室
作者单位	1.Stockholm Univ, Bolin Ctr Climate Res, S-10691 Stockholm, Sweden 2.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing, Peoples R China 3.Feng, Xiaojuan; Montlucon, Daniel B.; Eglinton, Timothy I.] ETH, Inst Geol, CH-8092 Zurich, Switzerland 4.Stockholm Univ, Dept Environm Sci & Analyt Chem ACES, S-10691 Stockholm, Sweden 5.Woods Hole Res Ctr, Falmouth, MA USA 6.Vonk, Jorien E.] Univ Utrecht, Dept Earth Sci, Utrecht, Netherlands 7.Vonk, Jorien E.] Univ Groningen, Arctic Ctr, Groningen, Netherlands 8.van Dongen, Bart E.] Univ Manchester, Sch Earth Atmospher & Environm Sci, Manchester, Lancs, England 9.van Dongen, Bart E.] Univ Manchester, Williamson Res Ctr Mol Environm Sci, Manchester, Lancs, England 10.Semiletov, Igor P.] Univ Alaska Fairbanks, Int Arctic Res Ctr, Fairbanks, AK USA
推荐引用方式 GB/T 7714	Feng, Xiaojuan,Gustafsson, Orjan,Holmes, R. Max,et al. Multimolecular tracers of terrestrial carbon transfer across the pan-Arctic: C-14 characteristics of sedimentary carbon components and their environmental controls[J]. GLOBAL BIOGEOCHEMICAL CYCLES,2015,29(11):1855-1873.
APA	Feng, Xiaojuan.,Gustafsson, Orjan.,Holmes, R. Max.,Vonk, Jorien E..,van Dongen, Bart E..,...&Eglinton, Timothy I..(2015).Multimolecular tracers of terrestrial carbon transfer across the pan-Arctic: C-14 characteristics of sedimentary carbon components and their environmental controls.GLOBAL BIOGEOCHEMICAL CYCLES,29(11),1855-1873.
MLA	Feng, Xiaojuan,et al."Multimolecular tracers of terrestrial carbon transfer across the pan-Arctic: C-14 characteristics of sedimentary carbon components and their environmental controls".GLOBAL BIOGEOCHEMICAL CYCLES 29.11(2015):1855-1873.