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题名: Mid-late Holocene temperature and precipitation variations in the Guanting Basin, upper reaches of the Yellow River
作者: Zhao, Hui1, 2;  Huang, Chun Chang1;  Wang, Huanye2;  Liu, Weiguo2;  Qiang, Xiaoke2;  Xu, Xinwen3;  Zheng, Zixing1;  Hu, Ying1;  Zhou, Qiang4;  Zhang, Yuzhu3;  Guo, Yongqiang1
通讯作者: Zhao, Hui
关键词: Guanting Basin ;  Temperature ;  Precipitation ;  Cultural evolution ;  GDGTs
刊名: QUATERNARY INTERNATIONAL
发表日期: 2018-10-10
DOI: 10.1016/j.quaint.2018.05.009
卷: 490, 期:5, 页:74-81
收录类别: SCI
文章类型: Article
WOS标题词: Science & Technology ;  Physical Sciences
类目[WOS]: Geography, Physical ;  Geosciences, Multidisciplinary
研究领域[WOS]: Physical Geography ;  Geology
英文摘要: The reconstruction of prehistoric temperature and precipitation variations in the upper reaches of the Yellow River is essential for understanding the cultural evolution of the region, but related information is sparse due to the limitations of the available proxies. Recent studies have shown that microbial glycerol dialkyl glycerol tetraethers (GDGTs) are promising tools for reconstructing mean annual temperature (MAT) and mean annual precipitation (MAP) in terrestrial deposits. In this study, we reconstructed mid-late Holocene climatic changes using GDGT distributions in a loess-paleosol sequence in the Lajia Ruins of the Neolithic Qijia Culture, Guanting Basin, in the southwestern end of the Chinese Loess Plateau. Our GDGT records show that MAP decreased from ca. 600 mm to 430 mm, while MAT decreased from 11.9 degrees C to 8.0 degrees C, during the past ca. 7000 yr, and a drastic decline in MAP (70 mm), accompanied by a 0.8 degrees C decline in MAT, occurred at 3800-3400 yr BP. Our results provide direct evidence supporting a hypothesis that the flourishing (4200-4000 yr BP) and decline (4000-3600 yr BP) of the Qijia culture (mainly based on millets cultivation) and subsequent rise of the Xindian/Kayue culture (3600-2600 yr BP), based on mixed agriculture of sheep husbandry and millets cultivation were triggered by climate change.
关键词[WOS]: DIALKYL GLYCEROL TETRAETHERS ;  CHINESE LOESS PLATEAU ;  CAL YR BP ;  CLIMATE-CHANGE ;  LAST DEGLACIATION ;  QINGHAI PROVINCE ;  MONSOON PRECIPITATION ;  ENVIRONMENTAL-CHANGE ;  CULTURAL-EVOLUTION ;  MAYA CIVILIZATION
WOS记录号: WOS:000441524200008
Citation statistics: 
内容类型: 期刊论文
URI标识: http://ir.ieecas.cn/handle/361006/5084
Appears in Collections:加速器质谱中心_期刊论文

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作者单位: 1.Shaanxi Normal Univ, Sch Geog & Tourism, Xian 710062, Shaanxi, Peoples R China
2.Chinese Acad Sci, Inst Earth Environm, State Key Lab Loess & Quaternary Geol, Xian 710061, Shaanxi, Peoples R China
3.Northwest Univ, Coll Urban & Environm Sci, Xian 710127, Shaanxi, Peoples R China
4.Qinghai Normal Univ, Sch Geog Sci, Xining 810008, Qinghai, Peoples R China

Recommended Citation:
Zhao, Hui,Huang, Chun Chang,Wang, Huanye,et al. Mid-late Holocene temperature and precipitation variations in the Guanting Basin, upper reaches of the Yellow River[J]. QUATERNARY INTERNATIONAL,2018,490(5):74-81.
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