کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8942521 | 1645085 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Mid-late Holocene temperature and precipitation variations in the Guanting Basin, upper reaches of the Yellow River
ترجمه فارسی عنوان
دما و تغییرات بارش هولوسن در اواسط دسامبر در حوضه گوانینگ، بالادست رودخانه زرد است
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موضوعات مرتبط
مهندسی و علوم پایه
علوم زمین و سیارات
زمین شناسی
چکیده انگلیسی
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. 600â¯mm to 430â¯mm, while MAT decreased from 11.9â¯Â°C to 8.0â¯Â°C, during the past ca. 7000 yr, and a drastic decline in MAP (70â¯mm), accompanied by a 0.8â¯Â°C decline in MAT, occurred at 3800-3400â¯yr BP. Our results provide direct evidence supporting a hypothesis that the flourishing (4200-4000â¯yr BP) and decline (4000-3600â¯yr BP) of the Qijia culture (mainly based on millets cultivation) and subsequent rise of the Xindian/Kayue culture (3600-2600â¯yr BP), based on mixed agriculture of sheep husbandry and millets cultivation were triggered by climate change.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Quaternary International - Volume 490, 10 October 2018, Pages 74-81
Journal: Quaternary International - Volume 490, 10 October 2018, Pages 74-81
نویسندگان
Hui Zhao, Chun Chang Huang, Huanye Wang, Weiguo Liu, Xiaoke Qiang, Xinwen Xu, Zixing Zheng, Ying Hu, Qiang Zhou, Yuzhu Zhang, Yongqiang Guo,