Evidence map›Paper›PMID 26738699›Full record

ArticleScientific reports2016

Earliest tea as evidence for one branch of the Silk Road across the Tibetan Plateau.

Houyuan Lu, Jianping Zhang, Yimin Yang, Xiaoyan Yang, Baiqing Xu, Wuzhan Yang, Tao Tong, Shubo Jin, Caiming Shen, Huiyun Rao and 7 more

Abstract read
In one paragraph

Article in Scientific reports, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 22 papers.

0numbers the graph read from it
0cells of the map it votes in
22citing papers in PubMed
–field-weighted citation impact
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

22 citing papers in PubMed.

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  17. The growth of tea.Nature · 2019
    Article
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  19. Review
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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

17 authors.

Houyuan LuKey Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China.
Jianping ZhangKey Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China.
Yimin YangUniversity of Chinese Academy of Sciences, Beijing 100049, China.
Xiaoyan YangInstitute of Geographic Sciences and Natural Resources, Chinese Academy of Sciences, Beijing 100101, China.
Baiqing XuCenter for Excellence in Tibetan Plateau Earth Science, Chinese Academy of Sciences, Beijing 100101, China.
Wuzhan YangShaanxi Provincial Institute of Archaeology, Xi'an 710001, China.
Tao TongInstitute of Archaeology, Chinese Academy of Social Sciences, Beijing 100710, China.
Shubo JinMinistry of Industry and Information Technology, Beijing 100804, China.
Caiming ShenKey Laboratory of Plateau Lake Ecology and Global Change, Yunnan Normal University, Kunming 650092, China.
Huiyun RaoUniversity of Chinese Academy of Sciences, Beijing 100049, China.
Xingguo LiAli district culture bureau of Tibet, Ali 859000, China.
Hongliang LuCenter for Tibetan Studies of Sichuan University, Chengdu 610064, China.
Dorian Q FullerInstitute of Archaeology, University College London, 31-34 Gordon Square, London WC1H 0PY, U.K.
Luo WangKey Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China.
Can WangKey Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China.
Deke XuKey Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China.
Naiqin WuKey Laboratory of Cenozoic Geology and Environment, Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing 100029, China.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Phytoliths and biomolecular components extracted from ancient plant remains from Chang'an (Xi'an, the city where the Silk Road begins) and Ngari (Ali) in western Tibet, China, show that the tea was grown 2100 years ago to cater for the drinking habits of the Western Han Dynasty (207BCE-9CE), and then carried toward central Asia by ca.200CE, several hundred years earlier than previously recorded. The earliest physical evidence of tea from both the Chang'an and Ngari regions suggests that a branch of the Silk Road across the Tibetan Plateau, was established by the second to third century CE.

Indexed as

TeaBurialCaffeineCalciumCamellia sinensisGlutamatesHuman MigrationHumansTibetCaffeineCalciumGlutamatesTeatheanine

Identifiers

PMID26738699
PMCPMC4704058

What OpenQuestion holds

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Registered trials

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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.