Long-term decrease in Asian monsoon rainfall and abrupt climate change events over the past 6,700 years

被引：191

作者：

Yang, Bao ^{[1
,2
]}

Qin, Chun ^{[1
]}

Braeuning, Achim ^{[3
]}

Osborn, Timothy J. ^{[4
]}

Trouet, Valerie ^{[5
]}

Ljungqvist, Fredrik Charpentier ^{[6
,7
,8
]}

Esper, Jan ^{[9
,10
]}

Schneider, Lea ^{[11
]}

Griessinger, Jussi ^{[3
]}

Buentgen, Ulf ^{[12
,13
,14
,15
]}

Rossi, Sergio ^{[16
,17
]}

Dong, Guanghui ^{[18
]}

Yan, Mi ^{[19
]}

Ning, Liang ^{[19
]}

Wang, Jianglin ^{[1
]}

Wang, Xiaofeng ^{[1
]}

Wang, Suming ^{[20
]}

Luterbacher, Juerg ^{[21
]}

Cook, Edward R. ^{[22
]}

Stenseth, Nils Chr ^{[23
]}

机构：

[1] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Key Lab Desert & Desertificat, Lanzhou 730000, Peoples R China

[2] Chinese Acad Sci, Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China

[3] Friedrich Alexander Univ Erlangen Nurnberg, Inst Geog, D-91058 Erlangen, Germany

[4] Univ East Anglia, Sch Environm Sci, Climat Res Unit, Norwich NR4 7TJ, Norfolk, England

[5] Univ Arizona, Lab Tree Ring Res, Tucson, AZ 85721 USA

[6] Stockholm Univ, Dept Hist, S-10691 Stockholm, Sweden

[7] Stockholm Univ, Bolin Ctr Climate Res, S-10691 Stockholm, Sweden

[8] Swedish Coll Adv Study, S-75238 Uppsala, Sweden

[9] Johannes Gutenberg Univ Mainz, Dept Geog, D-55099 Mainz, Germany

[10] Czech Acad Sci CzechGlobe, Global Change Res Inst, Brno 60300, Czech Republic

[11] Justus Liebig Univ, Dept Geog, D-35390 Giessen, Germany

[12] Univ Cambridge, Dept Geog, Cambridge CB2 3EN, England

[13] Swiss Fed Res Inst Forest Snow & Landscape Res, Dendrosci Grp, CH-8903 Birmensdorf, Switzerland

[14] Czech Acad Sci, Czech Globe Global Change Res Inst, Brno 60300, Czech Republic

[15] Masaryk Univ, Fac Sci, Dept Geog, Brno 61137, Czech Republic

[16] Univ Quebec Chicoutimi, Dept Sci Fondamentales, Chicoutimi, PQ G7H 2B1, Canada

[17] Chinese Acad Sci, South China Bot Garden, Guangdong Prov Key Lab Appl Bot, Key Lab Vegetat Restorat & Management Degraded Ec, Guangzhou 510650, Peoples R China

[18] Lanzhou Univ, Coll Earth & Environm Sci, Lanzhou 730000, Peoples R China

[19] Nanjing Normal Univ, Sch Geog Sci, Minist Educ, Key Lab Virtual Geog Environm, Nanjing 210023, Peoples R China

[20] Chinese Acad Sci, Nanjing Inst Geog & Limnol, State Key Lab Lake Sci & Environm, Nanjing 210008, Peoples R China

[21] World Meteorol Org, Sci & Innovat Dept, CH-1211 Geneva, Switzerland

[22] Columbia Univ, Lamont Doherty Earth Observ, Tree Ring Lab, Palisades, NY 10964 USA

[23] Univ Oslo, Dept Biosci, Ctr Ecol & Evolutionary Synth, N-0316 Oslo, Norway

来源：

PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA | 2021年 / 118卷 / 30期

基金：

瑞典研究理事会; 中国国家自然科学基金; 英国自然环境研究理事会;

关键词：

tree rings; stable isotopes; variability; megadrought; Asian summer monsoon; LAST GLACIAL MAXIMUM; TREE-RING WIDTH; CAL YR BP; TIBETAN PLATEAU; ARCHAEOLOGICAL SITES; ANNUAL PRECIPITATION; CULTURAL-EVOLUTION; QINGHAI PROVINCE; NORTHERN CHINA; ICE-AGE;

D O I：

10.1073/pnas.2102007118

中图分类号：

O [数理科学和化学]; P [天文学、地球科学]; Q [生物科学]; N [自然科学总论];

学科分类号：

07 ; 0710 ; 09 ;

摘要：

Asian summer monsoon (ASM) variability and its long-term ecological and societal impacts extending back to Neolithic times are poorly understood due to a lack of high-resolution climate proxy data. Here, we present a precisely dated and well-calibrated treering stable isotope chronology from the Tibetan Plateau with 1- to 5-y resolution that reflects high- to low-frequency ASM variability from 4680 BCE to 2011 CE. Superimposed on a persistent drying trend since the mid-Holocene, a rapid decrease in moisture availability between similar to 2000 and similar to 1500 BCE caused a dry hydroclimatic regime from similar to 1675 to similar to 1185 BCE, with mean precipitation estimated at 42 +/- 4% and 5 +/- 2% lower than during themid-Holocene and the instrumental period, respectively. This second-millennium-BCE megadrought marks the mid-to late Holocene transition, during which regional forests declined and enhanced aeolian activity affected northern Chinese ecosystems. We argue that this abrupt aridification starting similar to 2000 BCE contributed to the shift of Neolithic cultures in northern China and likely triggered human migration and societal transformation.

引用

页数：7

共 66 条

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