中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Quantitative reconstruction of summer precipitation using a mid-Holocene delta C-13 common millet record from Guanzhong Basin, northern China

文献类型:期刊论文

作者Yang, Qing1,2; Li, Xiaoqiang2; Zhou, Xinying2; Zhao, Keliang2; Sun, Nan3
刊名CLIMATE OF THE PAST
出版日期2016-12-19
卷号12期号:12页码:2229-2240
DOI10.5194/cp-12-2229-2016
文献子类Article
英文摘要To quantitatively reconstruct Holocene precipitation for particular geographical areas, suitable proxies and faithful dating controls are required. The fossilized seeds of common millet (Panicum miliaceum) are found throughout the sedimentary strata of northern China and are suited to the production of quantitative Holocene precipitation reconstructions: their isotopic carbon composition (delta C-13) gives a measure of the precipitation required during the growing season of summer (here the interval from mid-June to September) and allows these seeds to be dated. We therefore used a regression function, as part of a systematic study of the delta C-13 of common millet, to produce a quantitative reconstruction of mid-Holocene summer precipitation in the Guanzhong Basin (107 degrees 40'-107 degrees 49'E, 33 degrees 39'-34 degrees 45'N). Our results showed that mean summer precipitation at 7.7-3.4 ka BP was 353 mm, similar to 50 mm or 17% higher than present levels, and the variability increased, especially after 5.2 ka BP. Maximum mean summer precipitation peaked at 414 mm during the period 6.1-5.5 ka BP, similar to 109 mm (or 36 %) higher than today, indicating that the East Asian summer monsoon (EASM) peaked at this time. This work can provide a new proxy for further research into continuous paleoprecipitation sequences and the variability of summer precipitation, which will promote the further research into the relation between early human activity and environmental change.
WOS关键词CARBON-ISOTOPE DISCRIMINATION ; EAST-ASIAN MONSOON ; OXYGEN ISOTOPES ; ATMOSPHERIC CO2 ; LOESS SEQUENCE ; CLIMATE-CHANGE ; ICE-AGE ; HOLOCENE ; ATLANTIC ; FOXTAIL
WOS研究方向Geology ; Meteorology & Atmospheric Sciences
语种英语
WOS记录号WOS:000391282400001
资助机构National Basic Research Program of China(2015CB953804 ; National Natural Science Foundation of China(41301042 ; National Science Fund for Talent Training in Basic Science(J1210008) ; 2015CB953803) ; 41372175)
源URL[http://124.16.247.212/handle/311034/7520]  
专题古脊椎动物与古人类研究所_图书馆1
作者单位1.Nanjing Normal Univ, Sch Geog Sci, Nanjing 210023, Jiangsu, Peoples R China
2.Chinese Acad Sci, Key Lab Vertebrate Evolut & Human Origin, Inst Vertebrate Paleontol & Paleoanthropol, Beijing 100044, Peoples R China
3.Changan Univ, Sch Earth Sci & Resources, Xian 710054, Shaanxi, Peoples R China
推荐引用方式
GB/T 7714
Yang, Qing,Li, Xiaoqiang,Zhou, Xinying,et al. Quantitative reconstruction of summer precipitation using a mid-Holocene delta C-13 common millet record from Guanzhong Basin, northern China[J]. CLIMATE OF THE PAST,2016,12(12):2229-2240.
APA Yang, Qing,Li, Xiaoqiang,Zhou, Xinying,Zhao, Keliang,&Sun, Nan.(2016).Quantitative reconstruction of summer precipitation using a mid-Holocene delta C-13 common millet record from Guanzhong Basin, northern China.CLIMATE OF THE PAST,12(12),2229-2240.
MLA Yang, Qing,et al."Quantitative reconstruction of summer precipitation using a mid-Holocene delta C-13 common millet record from Guanzhong Basin, northern China".CLIMATE OF THE PAST 12.12(2016):2229-2240.

入库方式: OAI收割

来源:古脊椎动物与古人类研究所

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