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A Chinese cave links climatechange, social impacts, and humanadaptation over the last 500 years
Tan,LC(Tan,Liangcheng)[1,2]; Can,YJ(Cai,Yanjun)[1,3]; An,ZS(An,Zhisheng)[1,3]; Cheng,H(Cheng,Hai)[3,4]; Shen,CC(Shen,Chuan-Chou)[5]; Breitenbach,S F.M.(Breitenbach,Sebastian F.M.)[6]; Gao,YL(Gao,Yongli)[7]; Edwards, R.L(Edwards, R.Lawrence)[4]; Zhang,HW(Zhang,Haiwei)[3]; Du,YJ(Du,Yajun)[1]
Source PublicationScientific Reports

The collapse of some pre-historical and historical cultures, including Chinese dynasties were presumably linked to widespread droughts, on the basis of synchronicities of societal crises and proxy-based climate events. Here, we present a comparison of ancient inscriptions in Dayu Cave from Qinling Mountains, central China, which described accurate times and detailed impacts of seven drought events during the period of 1520–1920 CE, with high-resolution speleothem records from the same cave. The comparable results provide unique and robust tests on relationships among speleothem δ18O changes, drought events, and societal unrest. With direct historical evidences, our results suggest that droughts and even modest events interrupting otherwise wet intervals can cause serious social crises. Modeling results of speleothem δ18O series suggest that future precipitation in central China may be below the average of the past 500 years. As Qinling Mountain is the main recharge area of two large water transfer projects and habitats of many endangered species, it is imperative to explore an adaptive strategy for the decline in precipitation and/or drought events.

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Document Type期刊论文
Affiliation1.State Key Laboratory of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy ofSciences, Xi’an 710061, China;
2.Joint Center for Global Change Studies (JCGCS), Beijing 100875, China;
3.Instituteof Global Environmental Change, Xi’an Jiaotong University, Xi’an 710054, China;
4.Department of Earth Sciences,University of Minnesota, Minneapolis 55455, USA;
5.Department of Geosciences, National Taiwan University,Taipei 106, Taiwan;
6.Department of Earth Sciences, University of Cambridge, Cambridge, CB2 3EQ, UK;
7.Centerfor Water Research, Department of Geological Sciences, University of Texas at San Antonio, San Antonio 78249,USA
Recommended Citation
GB/T 7714
Tan,LC,Can,YJ,An,ZS,et al. A Chinese cave links climatechange, social impacts, and humanadaptation over the last 500 years[J]. Scientific Reports,2015,5(2015):12284.
APA Tan,LC.,Can,YJ.,An,ZS.,Cheng,H.,Shen,CC.,...&Du,YJ.(2015).A Chinese cave links climatechange, social impacts, and humanadaptation over the last 500 years.Scientific Reports,5(2015),12284.
MLA Tan,LC,et al."A Chinese cave links climatechange, social impacts, and humanadaptation over the last 500 years".Scientific Reports 5.2015(2015):12284.
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