Impact of middle to late holocene climate changes on human activities at Tanjialing Site, Tianmen, Hubei Province

被引：0
作者：
机构：
[1] School of Earth Sciences, China University of Geosciences, Wuhan
[2] Institute of Hydrogeology and Environmental Geology, Chinese Academy of Geological Sciences, Shijiazhuang
[3] Institute of Geophysics and Geomatics, China University of Geosciences, Wuhan
[4] Hubei Provincial Institute of Cultural Relics and Archaeology, Wuhan
来源：
Li, Chang'an | 1600年 / China University of Geosciences卷 / 39期
关键词：
Absolute age of Shijiahe Culture; Climate change; Environmental change; Geochemisty; Human activity; Tanjialing Site;
D O I：
10.3799/dqkx.2014.137
中图分类号：
学科分类号：
摘要：
The Shijiahe culture is a milestone in Chinese civilization development. However, there are still disputes as to the absolute age of the Shijiahe culture and the interaction between climate changes and human activities during this epoch. Sample profile from the Tanjialing site, i.e. a typical site of Shijiahe culture, was analyzed based on AMS 14C dating and geochemical elements, combined with the methods of principle component analysis (PCA) and ratio of elements (C value). The results show that the absolute age of the Shijiahe culture is around 4 800-4 100 cal. a BP based on three AMS 14C dating measured in the America NSF-Arizona AMS Laboratory, consistent with the relative age of Shijiahe culture. Between 4 850 and 4 300 cal. a BP, high value of the second principle component (F2), C value and Mg/Ca ratio indicate that the environment might be relatively warm and wet. Meanwhile, high values of the first and third principle components (F1 and F3) reflect strong human disturbances. For the period from 4 300 to 4 124 cal. a BP, low value of F2, C value and Mg/Ca ratio are indicative of cold and drought conditions. Meanwhile, low values of F1 and F3 might be related to weak human disturbances and the collapse of the Shijiahe culture. This study reveals that the flood events in the climate changes from warm and wet to cold and drought background could be one potential trigger of the collapse of the Shijiahe Culture.
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页码：1445 / 1453
页数：8
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