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Intensified aridity in northern China during the middle Piacenzian warm period
Ji, Shunchuan1; Nie, Junsheng1; Breecker, Daniel O.2; Luo, Zeng1; Song, Yougui3
2017-10-01
Source PublicationJOURNAL OF ASIAN EARTH SCIENCES
Volume147Issue:2017Pages:222-225
SubtypeArticle
AbstractDryland areas are predicted to expand significantly due to global climate change and such expansion would reduce carbon sequestration and enhance warming, forming a positive feedback. However, a contrasting theory is that Earth's thermal equator will move northward in a warm climate, resulting in precipitation increase and dryland shrinking. A study of past warm periods analogous to future climate can help distinguish between these predictions. The middle Piacenzian warm period during similar to 3.3-3 Ma is the best pre-Quaternary analog to late 21st century climate, but Pliocene terrestrial paleoclimatic records that can resolve orbital-timescale variations are scarce. Here we present a pedogenic carbonate oxygen isotope record spanning the entire Pliocene from the Chinese Loess Plateau. The record reveals intensified evaporation-induced aridity during the warm phases of the middle Piacenzian period. These records provide the first evidence demonstrating that intensified evaporation in northern China counteracted any precipitation increase associated with thermal equator migration during the warm periods. These results suggest that Asian drylands will likely expand with future warming, requiring a revision of model simulation which predicts increases in humidity.
KeywordPliocene Chinese Loess Plateau Stable Isotope Carbonate Aridification
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1016/j.jseaes.2017.07.016
WOS KeywordEAST-ASIAN MONSOON ; RED-CLAY SEQUENCE ; LOESS PLATEAU ; VEGETATION EVOLUTION ; PEDOGENIC CARBONATE ; ISOTOPIC EVIDENCE ; TIBETAN PLATEAU ; SUMMER MONSOONS ; PLIOCENE ; UPLIFT
Indexed BySCI
Language英语
WOS Research AreaGeology
WOS SubjectGeosciences, Multidisciplinary
WOS IDWOS:000413125600017
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Document Type期刊论文
Identifierhttp://ir.ieecas.cn/handle/361006/5423
Collection古环境研究室
Affiliation1.Coll Earth & Environm Sci, Minist Educ, Key Lab Western Chinas Environm Syst, Lanzhou 730000, Gansu, Peoples R China
2.Univ Texas Austin, Dept Geol Sci, Austin, TX 78712 USA
3.Chinese Acad Sci, State Key Lab Loess & Quaternary Geol, Inst Earth Environm, Xian 710075, Shaanxi, Peoples R China
Recommended Citation
GB/T 7714
Ji, Shunchuan,Nie, Junsheng,Breecker, Daniel O.,et al. Intensified aridity in northern China during the middle Piacenzian warm period[J]. JOURNAL OF ASIAN EARTH SCIENCES,2017,147(2017):222-225.
APA Ji, Shunchuan,Nie, Junsheng,Breecker, Daniel O.,Luo, Zeng,&Song, Yougui.(2017).Intensified aridity in northern China during the middle Piacenzian warm period.JOURNAL OF ASIAN EARTH SCIENCES,147(2017),222-225.
MLA Ji, Shunchuan,et al."Intensified aridity in northern China during the middle Piacenzian warm period".JOURNAL OF ASIAN EARTH SCIENCES 147.2017(2017):222-225.
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