Permafrost thaw induced abrupt changes in hydrology and carbon cycling in Lake Wudalianchi, northeastern China
文献类型：期刊论文
| 作者 | Yao, Yuan1,2,3; Huang, Yongsong1,2,3; Zhao, Jiaju2; Wang, Li4; Ran, Youhua5; Liu, Weiguo2; Cheng, Hai1,2,6 |
| 刊名 | GEOLOGY
 |
| 出版日期 | 2021-09-01 |
| 卷号 | 49期号:9页码:1117-1121 |
| ISSN号 | 0091-7613 |
| DOI | 10.1130/G48891.1 |
| 通讯作者 | Yao, Yuan(yaoyuan@xjtu.edu.cn) |
| 英文摘要 | 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. |
| WOS关键词 | THERMOKARST LAKE ; METHANE ; SEDIMENTS ; WATER ; DISTRIBUTIONS ; EMISSIONS |
| 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 |
| 语种 | 英语 |
| WOS记录号 | WOS:000692563800021 |
| 出版者 | GEOLOGICAL SOC AMER, INC |
| 资助机构 | National Natural Science Foundation of China ; U.S. National Science Foundation ; Strategic Priority Research Program of the Chinese Academy of Sciences |
| 源URL | [http://ir.ieecas.cn/handle/361006/17000]  |
| 专题 | 地球环境研究所_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. |
入库方式： OAI收割
来源：地球环境研究所
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