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  Megadrought and cultural exchange along the proto-silk road

Tan, L., Dong, G., An, Z., Lawrence Edwards, R., Li, H., Li, D., et al. (2020). Megadrought and cultural exchange along the proto-silk road. Science Bulletin, 2020.10.011. doi:10.1016/j.scib.2020.10.011.

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Item Permalink: http://hdl.handle.net/21.11116/0000-0007-5EF9-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0007-5EFD-4
Genre: Journal Article

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Supplementary data 1. (Supplementary material)
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 Creators:
Tan, Liangcheng, Author
Dong, Guanghui, Author
An, Zhisheng, Author
Lawrence Edwards, R., Author
Li, Haiming, Author
Li, Dong, Author
Spengler, Robert1, Author              
Cai, Yanjun, Author
Cheng, Hai, Author
Lan, Jianghu, Author
Orozbaev, Rustam, Author
Liu, Ruiliang, Author
Chen, Jianhui, Author
Xu, Hai, Author
Chen, Fahu, Author
Affiliations:
1Archaeology, Max Planck Institute for the Science of Human History, Max Planck Society, ou_2074312              

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Free keywords: Megadrought, Trans-Eurasian exchange, Silk Roads, Arid Central Asia, Mid-Holocene
 Abstract: Arid Central Asia (ACA), with its diverse landscapes of high mountains, oases, and deserts, hosted the central routes of the Silk Roads that linked trade centers from East Asia to the eastern Mediterranean. Ecological pockets and ecoclines in ACA are largely determined by local precipitation. However, little research has gone into the effects of hydroclimatic changes on trans-Eurasian cultural exchange. Here, we reconstruct precipitation changes in ACA, covering the mid-late Holocene with a U-Th dated, ~3 a resolution, multi-proxy time series of replicated stalagmites from the southeastern Fergana Valley, Kyrgyzstan. Our data reveal a 640-a megadrought between 5820 and 5180 a BP, which likely impacted cultural development in ACA and impeded the expansion of cultural traits along oasis routes. Instead, it may have diverted the earliest transcontinental exchange along the Eurasian steppe during the 5th millennium BP. With gradually increasing precipitation after the megadrought, settlement of peoples in the oases and river valleys may have facilitated the opening of the oasis routes, “prehistoric Silk Roads”, of trans-Eurasian exchange. By the 4th millennium BP, this process may have reshaped cultures across the two continents, laying the foundation for the organized Silk Roads.

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Language(s): eng - English
 Dates: 2020-10-20
 Publication Status: Published online
 Pages: 9
 Publishing info: -
 Table of Contents: 1. Introduction
2. Materials and methods
2.1. Cave and stalagmites
2.2. Methods
3. Results
4. Discussion
4.1. Interpretation of proxies
4.2. Megadrought in ACA during the mid-Holocene
4.3. Driving force of the megadrought
4.4. Climate change and trans-Eurasian exchange
5. Conclusion
 Rev. Type: -
 Identifiers: DOI: 10.1016/j.scib.2020.10.011
Other: shh2765
 Degree: -

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Title: Science Bulletin
  Abbreviation : Sci. Bull.
Source Genre: Journal
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Publ. Info: Elsevier B.V.
Pages: - Volume / Issue: - Sequence Number: 2020.10.011 Start / End Page: - Identifier: ISSN: 2095-9273
CoNE: https://pure.mpg.de/cone/journals/resource/2095-9273