Earthquake-triggered increase in biospheric carbon export from a mountain belt

doi:10.1130/G37533.1

	Earthquake-triggered increase in biospheric carbon export from a mountain belt
	Wang, Jin 2; Jin, Zhangdong 3; Hilton, Robert G.; Zhang, Fei ; Li, Gen ; Densmore, Alexander L.; Grocke, Darren R.; Xu, Xiaomei 7; West, A. Joshua
	2016
发表期刊	GEOLOGY
ISSN	0091-7613
卷号	44 期号:6 页码:471-474
摘要	On geological time scales, the erosion of carbon from the terrestrial biosphere and its burial in sediments can counter CO2 emissions from the solid Earth. Earthquakes may increase the erosion of this biospheric carbon and supply it to mountain rivers by triggering landslides, which rapidly strip hillslopes of vegetation and soil. Over the long term, elevated river sediment loads may promote more efficient carbon burial. However, riverine export of earthquake-mobilized carbon has remained poorly constrained. Here we quantify biospheric carbon discharge by the Zagunao River following a large earthquake with a unique set of samples collected before and after the A.D. 2008 M-w 7.9 Wenchuan (China) earthquake. Radioactive and stable carbon isotopes are used to isolate the biospheric carbon, accounting for rock-derived organic carbon inputs. River discharge of biospheric carbon doubled in the downstream reaches, characterized by moderate landslide impact, following the earthquake. The rapid export of carbon from earthquake-triggered landslides appears to outpace its degradation on hillslopes while sediment loads are elevated. This means that enhanced river discharge of biospheric carbon following large earthquakes can link active tectonics to CO2 drawdown.
学科领域	Geology
DOI	10.1130/G37533.1
收录类别	SCI
语种	英语
WOS关键词	TERRESTRIAL ORGANIC-CARBON ; WENCHUAN EARTHQUAKE ; EROSION ; LANDSLIDES ; BURIAL ; SEDIMENT ; RESPIRATION ; CONSTRAINTS ; DYNAMICS ; MATTER
WOS研究方向	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000378203600020
出版者	GEOLOGICAL SOC AMER, INC
文献子类	Article
出版地	BOULDER
EISSN	1943-2682
资助机构	National Basic Research Program of ChinaNational Basic Research Program of China [2013CB956402] ; National Science Foundation of ChinaNational Natural Science Foundation of China (NSFC) [41225015] ; Royal Society of LondonRoyal Society of London [RG110569] ; U.S. National Science FoundationNational Science Foundation (NSF) [EAR/GLD234 1053504] ; Directorate For GeosciencesNational Science Foundation (NSF)NSF - Directorate for Geosciences (GEO) [1053504] Funding Source: National Science Foundation
作者邮箱	zhdjin@ieecas.cn ; r.g.hilton@durham.ac.uk
作品OA属性	Green Accepted
引用统计	被引频次：24[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ibcas.ac.cn/handle/2S10CLM1/25179
专题	植被与环境变化国家重点实验室
作者单位	1.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 2.Wang, Jin; Hilton, Robert G.] Univ Durham, Dept Geog, Durham DH1 3LE, England 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710049, Peoples R China 5.Univ So Calif, Dept Earth Sci, Los Angeles, CA 90089 USA 6.Densmore, Alexander L.] Univ Durham, Inst Hazard Risk & Resilience, Durham DH1 3LE, England 7.Grocke, Darren R.] Univ Durham, Dept Earth Sci, Durham DH1 3LE, England 8.Univ Calif Irvine, Dept Earth Syst Sci, Irvine, CA 92697 USA
推荐引用方式 GB/T 7714	Wang, Jin,Jin, Zhangdong,Hilton, Robert G.,et al. Earthquake-triggered increase in biospheric carbon export from a mountain belt[J]. GEOLOGY,2016,44(6):471-474.
APA	Wang, Jin.,Jin, Zhangdong.,Hilton, Robert G..,Zhang, Fei.,Li, Gen.,...&West, A. Joshua.(2016).Earthquake-triggered increase in biospheric carbon export from a mountain belt.GEOLOGY,44(6),471-474.
MLA	Wang, Jin,et al."Earthquake-triggered increase in biospheric carbon export from a mountain belt".GEOLOGY 44.6(2016):471-474.

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