Evidence map›Paper›PMID 34282014›Full record

ArticleProceedings of the National Academy of Sciences of the United States of America2021

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

Bao Yang, Chun Qin, Achim Bräuning, Timothy J Osborn, Valerie Trouet, Fredrik Charpentier Ljungqvist, Jan Esper, Lea Schneider, Jussi Grießinger, Ulf Büntgen and 10 more

Open access · hybridAbstract read
In one paragraph

Article in Proceedings of the National Academy of Sciences of the United States of America, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
18.1field-weighted citation impact, top 1% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

16 citing papers in PubMed, 214 citations in OpenAlex.

  1. Asian continental isoscapes of tree-ring δNational science review · 2025
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  6. Persistent humid climate favored the Qin and Western Han Dynasties in China around 2,200 y ago.Proceedings of the National Academy of Sciences of the United States of America · 2025
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  11. Review
  12. The East Asian summer monsoon, the Indian summer monsoon, and the midlatitude westerlies at 4.2 ka BP.Proceedings of the National Academy of Sciences of the United States of America · 2022
    Article
  13. Reply to Weiss: Tree-ring stable oxygen isotopes suggest an increase in Asian monsoon rainfall at 4.2 ka BP.Proceedings of the National Academy of Sciences of the United States of America · 2022
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

20 authors at 14 institutions in 9 countries.

Bao YangKey Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China; n.c.stenseth@mn.uio.no yangbao@lzb.ac.cn.ORCID 0000-0002-1063-351X
Chun QinKey Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.ORCID 0000-0003-3115-2376
Achim BräuningInstitute of Geography, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany.ORCID 0000-0003-3106-4229
Timothy J OsbornClimatic Research Unit, School of Environmental Sciences, University of East Anglia, Norwich NR4 7TJ, United Kingdom.ORCID 0000-0001-8425-6799
Valerie TrouetLaboratory of Tree-Ring Research, University of Arizona, Tucson, AZ 85721.ORCID 0000-0002-2683-8704
Fredrik Charpentier LjungqvistDepartment of History, Stockholm University, 106 91 Stockholm, Sweden.ORCID 0000-0003-0220-3947
Jan EsperDepartment of Geography, Johannes Gutenberg University, 55099 Mainz, Germany.
Lea SchneiderDepartment of Geography, Justus-Liebig-University, D-35390 Giessen, Germany.ORCID 0000-0002-8208-7300
Jussi GrießingerInstitute of Geography, Friedrich-Alexander-University Erlangen-Nürnberg, 91058 Erlangen, Germany.ORCID 0000-0001-6103-2071
Ulf BüntgenDepartment of Geography, University of Cambridge, CB2 3EN Cambridge, United Kingdom.ORCID 0000-0002-3821-0818
Sergio RossiDépartement des Sciences Fondamentales, Université du Québec à Chicoutimi, Chicoutimi, QC G7H 2B1, Canada.
Guanghui DongCollege of Earth and Environmental Sciences, Lanzhou University, Lanzhou 730000, China.
Mi YanKey Laboratory of Virtual Geographic Environment of Ministry of Education, School of Geography Science, Nanjing Normal University, Nanjing 210023, China.ORCID 0000-0003-4730-3781
Liang NingKey Laboratory of Virtual Geographic Environment of Ministry of Education, School of Geography Science, Nanjing Normal University, Nanjing 210023, China.
Jianglin WangKey Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.
Xiaofeng WangKey Laboratory of Desert and Desertification, Northwest Institute of Eco-Environment and Resources, Chinese Academy of Sciences, Lanzhou 730000, China.ORCID 0000-0002-7476-2206
Suming WangState Key Laboratory of Lake Science and Environment, Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China.
Jürg LuterbacherScience and Innovation Department, World Meteorological Organization, CH-1211 Geneva, Switzerland.
Edward R CookTree Ring Laboratory, Lamont Doherty Earth Observatory of Columbia University, Palisades, NY 10964.
Nils Chr StensethCentre for Ecological and Evolutionary Synthesis, Department of Biosciences, University of Oslo, N-0316 Oslo, Norway n.c.stenseth@mn.uio.no yangbao@lzb.ac.cn.ORCID 0000-0002-1591-5399
Chinese Academy of Sciences · CNFriedrich-Alexander-Universität Erlangen-Nürnberg · DENanjing Normal University · CNJohannes Gutenberg University Mainz · DEJustus-Liebig-Universität Gießen · DELamont-Doherty Earth Observatory · USLanzhou University · CNMasaryk University · CZStockholm University · SEUniversité du Québec à Chicoutimi · CAUniversity of Arizona · USUniversity of East Anglia · GBUniversity of Oslo · NOWorld Meteorological Organization · CH

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

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 tree-ring 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 ∼2000 and ∼1500 BCE caused a dry hydroclimatic regime from ∼1675 to ∼1185 BCE, with mean precipitation estimated at 42 ± 4% and 5 ± 2% lower than during the mid-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 ∼2000 BCE contributed to the shift of Neolithic cultures in northern China and likely triggered human migration and societal transformation.

Indexed as

Asian summer monsoonclimate variabilitymegadroughtstable isotopestree rings

Identifiers

PMID34282014
PMCPMC8325342
OpenAlexW3182410340

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.