Permafrost thaw induced abrupt changes in hydrology and carbon cycling in Lake Wudalianchi, northeastern China

doi:10.1130/G48891.1

IEECAS OpenIR > 古环境研究室

	Permafrost thaw induced abrupt changes in hydrology and carbon cycling in Lake Wudalianchi, northeastern China
	Yao, Yuan 1,2,3; Huang, Yongsong 1,2,3; Zhao, Jiaju 2; Wang, Li 4; Ran, Youhua 5; Liu, Weiguo 2; Cheng, Hai 1,2,6
通讯作者	Yao, Yuan(yaoyuan@xjtu.edu.cn)
	2021-09-01
发表期刊	GEOLOGY
ISSN	0091-7613
卷号	49 期号:9 页码:1117-1121
摘要	Lakes in the permafrost zone have been proposed to serve as key outlets for methane and carbon dioxide emissions. However, there has been no geological record of the hydrological and biogeochemical responses of lakes throughout the thawing of surrounding permafrost. We use multiple biomarker and isotopic proxies to reconstruct hydrological and biogeochemical changes in Lake Wudalianchi in northeastern China during regional thawing of the permafrost. We show permafrost thawing, as indicated by lignin degradation, initiated rapid lake water freshening as a result of the opening of groundwater conduits, and negative organic delta 13C excursion due to increased inorganic and organic carbon fluxes. These hydrological changes were followed, with an similar to 5-7 yr delay, by abrupt and persistent increases in microbial lake methanotrophy and methanogenesis, indicating enhanced anaerobic organic decomposition and methane emissions from lakes as permafrost thaws. Our data provide a detailed assessment of the processes involved during permafrost thaw, and highlight the importance of lakes in ventilating greenhouse gases to the atmosphere.
DOI	10.1130/G48891.1
关键词[WOS]	THERMOKARST LAKE ; METHANE ; SEDIMENTS ; WATER ; DISTRIBUTIONS ; EMISSIONS
收录类别	SCI ; SCI
语种	英语
资助项目	National Natural Science Foundation of China[42073070] ; National Natural Science Foundation of China[41888101] ; National Natural Science Foundation of China[41702187] ; U.S. National Science Foundation[EAR-1122749] ; U.S. National Science Foundation[PLR-1503846] ; U.S. National Science Foundation[EAR-1502455] ; U.S. National Science Foundation[EAR-1762431] ; Strategic Priority Research Program of the Chinese Academy of Sciences[XDA19070204]
WOS研究方向	Geology
项目资助者	National Natural Science Foundation of China ; U.S. National Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences
WOS类目	Geology
WOS记录号	WOS:000692563800021
出版者	GEOLOGICAL SOC AMER, INC
引用统计	被引频次：9[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/17001
专题	古环境研究室
通讯作者	Yao, Yuan
作者单位	1.Xi An Jiao Tong Univ, Inst Global Environm Change, Xian 710054, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China 3.Brown Univ, Dept Earth Environm & Planetary Sci, Providence, RI 02912 USA 4.Chinese Acad Sci, Guangzhou Inst Geochem, State Key Lab Organ Geochem, Guangzhou 510640, Peoples R China 5.Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Peoples R China 6.Chinese Acad Geol Sci, Inst Karst Geol, Key Lab Karst Dynam, Minist Land & Resources, Guilin 541004, Peoples R China
推荐引用方式 GB/T 7714	Yao, Yuan,Huang, Yongsong,Zhao, Jiaju,et al. Permafrost thaw induced abrupt changes in hydrology and carbon cycling in Lake Wudalianchi, northeastern China[J]. GEOLOGY,2021,49(9):1117-1121.
APA	Yao, Yuan.,Huang, Yongsong.,Zhao, Jiaju.,Wang, Li.,Ran, Youhua.,...&Cheng, Hai.(2021).Permafrost thaw induced abrupt changes in hydrology and carbon cycling in Lake Wudalianchi, northeastern China.GEOLOGY,49(9),1117-1121.
MLA	Yao, Yuan,et al."Permafrost thaw induced abrupt changes in hydrology and carbon cycling in Lake Wudalianchi, northeastern China".GEOLOGY 49.9(2021):1117-1121.