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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
发表期刊JOURNAL OF ASIAN EARTH SCIENCES
卷号147期号:2017页码:222-225
文章类型Article
摘要Dryland 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.
关键词Pliocene Chinese Loess Plateau Stable Isotope Carbonate Aridification
WOS标题词Science & Technology ; Physical Sciences
DOI10.1016/j.jseaes.2017.07.016
关键词[WOS]EAST-ASIAN MONSOON ; RED-CLAY SEQUENCE ; LOESS PLATEAU ; VEGETATION EVOLUTION ; PEDOGENIC CARBONATE ; ISOTOPIC EVIDENCE ; TIBETAN PLATEAU ; SUMMER MONSOONS ; PLIOCENE ; UPLIFT
收录类别SCI
语种英语
WOS研究方向Geology
WOS类目Geosciences, Multidisciplinary
WOS记录号WOS:000413125600017
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文献类型期刊论文
条目标识符http://ir.ieecas.cn/handle/361006/5423
专题古环境研究室
作者单位1.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
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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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