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

	Long-term decrease in Asian monsoon rainfall and abrupt climate change events over the past 6,700 years
	Yang, Bao; Qin, Chun; Braeuning, Achim; Osborn, Timothy J.; Trouet, Valerie; Ljungqvist, Fredrik Charpentier; Esper, Jan; Schneider, Lea; Griessinger, Jussi; Buentgen, Ulf
刊名	PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA
	2021
卷号	118 期号:30
英文摘要	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.
内容类型	期刊论文
源URL	[http://159.226.73.51/handle/332005/20466]
专题	中国科学院南京地理与湖泊研究所
推荐引用方式 GB/T 7714	Yang, Bao,Qin, Chun,Braeuning, Achim,et al. Long-term decrease in Asian monsoon rainfall and abrupt climate change events over the past 6,700 years[J]. PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,2021,118(30).
APA	Yang, Bao.,Qin, Chun.,Braeuning, Achim.,Osborn, Timothy J..,Trouet, Valerie.,...&Stenseth, Nils Chr.(2021).Long-term decrease in Asian monsoon rainfall and abrupt climate change events over the past 6,700 years.PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA,118(30).
MLA	Yang, Bao,et al."Long-term decrease in Asian monsoon rainfall and abrupt climate change events over the past 6,700 years".PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA 118.30(2021).