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  Ancient great wall building materials reveal paleoenvironmental Changes in Northwestern China

Patalano, R., Hu, J., Leng, Q., Liu, W., Wang, H., Roberts, P., et al. (2021). Ancient great wall building materials reveal paleoenvironmental Changes in Northwestern China. Research Square, rs.3.rs-390056/v1. doi:10.21203/rs.3.rs-390056/v1.

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 Creators:
Patalano, Robert1, Author              
Hu, Jing, Author
Leng, Qing, Author
Liu, Weiguo, Author
Wang, Huanye, Author
Roberts, Patrick1, Author              
Storozum, Michael, Author
Yang, Lin, Author
Yang, Hong, Author
Affiliations:
1Archaeology, Max Planck Institute for the Science of Human History, Max Planck Society, ou_2074312              

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Free keywords: Great Wall, plant material, construction
 Abstract: Plant material used in the construction of segments and beacon towers of the ancient Great Wall in northwestern China contain untapped potential for revealing paleoenvironmental conditions. Here, we characterize the molecular preservation and stable carbon and nitrogen isotope compositions of common reeds (Phragmites) collected from Great Wall fascines dated to the Han Dynasty in today’s Gansu and Xinjiang provinces using a combination of chromatographic techniques and isotope analyses. Our data demonstrates that ancient reeds were harvested from local habitats that were more diverse than exist today. The isotope data also capture differential rates of environmental deterioration along the eastern margin of the Tarim Basin, leading to the intense evaporative stress on modern plants. This study demonstrates the wealth of environmental and climate information obtainable from site-specific organic building material of ancient walls, which have received considerably less attention than the iconic brick and stone masonry walls of the later Ming Dynasty.

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Language(s): eng - English
 Dates: 2021-04-14
 Publication Status: Published online
 Pages: 28
 Publishing info: -
 Table of Contents: Introduction
Results
- Py-GC-MS Analysis
- Lipid Concentration and Distribution
- Bulk Carbon and Nitrogen Isotope Analysis
Discussion
- Differential Rates of Environmental Deterioration
- Temperature and the Diversity of Ancient Phragmites Populations
- Archaeological Significance of the Great Wall in Northwestern China
Conclusions
Methods
- Site Locations and Sampling
- Plant Biomolecular Composition
-- Molecular Composition
-- Plant Wax Lipids
- Bulk Carbon and Nitrogen Isotope Analysis
-- Carbon
-- Nitrogen
 Rev. Type: No review
 Identifiers: DOI: 10.21203/rs.3.rs-390056/v1
Other: shh2910
 Degree: -

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Title: Research Square
  Subtitle : Nature Portfolio
Source Genre: Web Page
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https://www.researchsquare.com/, Developer              
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Pages: - Volume / Issue: - Sequence Number: rs.3.rs-390056/v1 Start / End Page: - Identifier: URN: https://www.researchsquare.com/