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Alpine permafrost could account for a quarter of thawed carbon based on Plio-Pleistocene paleoclimate analogue

文献类型：期刊论文

作者Cheng, Feng11,12; Garzione, Carmala9,10,11; Li, Xiangzhong7,8; Salzmann, Ulrich6; Schwarz, Florian6; Haywood, Alan M.5; Tindall, Julia5; Nie, Junsheng4; Li, Lin9; Wang, Lin3
刊名NATURE COMMUNICATIONS
出版日期2022-03-14
卷号13期号:1页码:12
DOI10.1038/s41467-022-29011-2
通讯作者Cheng, Feng(cfcf.chengfeng@gmail.com)
英文摘要Estimates of the permafrost-climate feedback vary in magnitude and sign, partly because permafrost carbon stability in warmer-than-present conditions is not well constrained. Here we use a Plio-Pleistocene lacustrine reconstruction of mean annual air temperature (MAAT) from the Tibetan Plateau, the largest alpine permafrost region on the Earth, to constrain past and future changes in permafrost carbon storage. Clumped isotope-temperatures (Delta(47)-T) indicate warmer MAAT (similar to 1.2 degrees C) prior to 2.7 Ma, and support a permafrost-free environment on the northern Tibetan Plateau in a warmer-than-present climate. Delta(47)-T indicate similar to 8.1 degrees C cooling from 2.7 Ma, coincident with Northern Hemisphere glacial intensification. Combined with climate models and global permafrost distribution, these results indicate, under conditions similar to mid-Pliocene Warm period (3.3-3.0 Ma), similar to 60% of alpine permafrost containing similar to 85 petagrams of carbon may be vulnerable to thawing compared to similar to 20% of circumarctic permafrost. This estimate highlights similar to 25% of permafrost carbon and the permafrost-climate feedback could originate in alpine areas.
WOS关键词KUNLUN PASS BASIN ; CLUMPED ISOTOPE ANALYSIS ; TIBETAN PLATEAU ; CLIMATE-CHANGE ; ELEVATION ; DELTA(47) ; REGIONS ; RECONSTRUCTIONS ; GEOCHRONOLOGY ; AMPLIFICATION
资助项目NSFC[42173004] ; NSFC[41991323] ; NSFC[41888101] ; NSFC[41930213] ; U.S. NSF[1916565] ; U.S. NSF[EAR-1348005] ; U.S. NSF[OISE-1545859] ; Yunnan Fundamental Research Projects[202001AV070012] ; Royal Society[IE141128] ; Department of Energy (DOE)[DE-SC0010288] ; NSF[EAR-0949191] ; NSF[ICER-1936715] ; NSF[EAR-1352212]
WOS研究方向Science & Technology - Other Topics
语种英语
出版者NATURE PORTFOLIO
WOS记录号WOS:000769063600014
资助机构NSFC ; U.S. NSF ; Yunnan Fundamental Research Projects ; Royal Society ; Department of Energy (DOE) ; NSF
源URL[http://ir.ieecas.cn/handle/361006/17583]  
专题地球环境研究所_现代环境研究室
通讯作者Cheng, Feng
作者单位1.Univ Calif Los Angeles, Ctr Diverse Leadership Sci, Inst Environm & Sustainabil, Dept Earth Planetary & Space Sci,Dept Atmospher &, Los Angeles, CA 90095 USA
2.Brigham Young Univ, Dept Plant & Wildlife Sci, Provo, UT 84602 USA
3.Hong Kong Univ Sci & Technol, Dept Civil & Environm Engn, Hong Kong, Peoples R China
4.Lanzhou Univ, Coll Earth & Environm Sci, Key Lab Western Chinas Environm Syst, Minist Educ, Lanzhou 730000, Peoples R China
5.Univ Leeds, Sch Earth & Environm, Woodhouse Lane, Leeds LS2 9JT, W Yorkshire, England
6.Northumbria Univ, Dept Geog & Environm Sci, Newcastle Upon Tyne NE1 8ST, Tyne & Wear, England
7.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Peoples R China
8.Yunnan Univ, Yunnan Key Lab Earth Syst Sci, Kunming 650500, Yunnan, Peoples R China
9.Univ Arizona, Coll Sci, Tucson, AZ 85721 USA
10.Rochester Inst Technol, Dept Environm Sci, Rochester, NY 14623 USA
推荐引用方式
GB/T 7714		 Cheng, Feng,Garzione, Carmala,Li, Xiangzhong,et al. Alpine permafrost could account for a quarter of thawed carbon based on Plio-Pleistocene paleoclimate analogue[J]. NATURE COMMUNICATIONS,2022,13(1):12.
APA Cheng, Feng.,Garzione, Carmala.,Li, Xiangzhong.,Salzmann, Ulrich.,Schwarz, Florian.,...&Tripati, Aradhna.(2022).Alpine permafrost could account for a quarter of thawed carbon based on Plio-Pleistocene paleoclimate analogue.NATURE COMMUNICATIONS,13(1),12.
MLA Cheng, Feng,et al."Alpine permafrost could account for a quarter of thawed carbon based on Plio-Pleistocene paleoclimate analogue".NATURE COMMUNICATIONS 13.1(2022):12.

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来源：地球环境研究所

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