Quantitative reconstruction of summer precipitation using a mid-Holocene delta C-13 common millet record from Guanzhong Basin, northern China

doi:10.5194/cp-12-2229-2016

IVPP-IR > 中科院古脊椎所（2000年以后）

	Quantitative reconstruction of summer precipitation using a mid-Holocene delta C-13 common millet record from Guanzhong Basin, northern China
	Yang, Qing 1,2; Li, Xiaoqiang 2; Zhou, Xinying 2; Zhao, Keliang 2; Sun, Nan 3
	2016-12-19
发表期刊	CLIMATE OF THE PAST
卷号	12 期号:12 页码:2229-2240
文章类型	Article
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标题词	Science & Technology ; Physical Sciences
DOI	10.5194/cp-12-2229-2016
关键词[WOS]	CARBON-ISOTOPE DISCRIMINATION ; EAST-ASIAN MONSOON ; OXYGEN ISOTOPES ; ATMOSPHERIC CO2 ; LOESS SEQUENCE ; CLIMATE-CHANGE ; ICE-AGE ; HOLOCENE ; ATLANTIC ; FOXTAIL
收录类别	SCI
语种	英语
项目资助者	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)
WOS研究方向	Geology ; Meteorology & Atmospheric Sciences
WOS类目	Geosciences, Multidisciplinary ; Meteorology & Atmospheric Sciences
WOS记录号	WOS:000391282400001
引用统计
文献类型	期刊论文
条目标识符	http://119.78.100.205/handle/311034/7520
专题	中科院古脊椎所（2000年以后）
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.

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