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A 1600 year multiproxy record of paleoclimatic change from varved sediments in Lake Xiaolongwan, northeastern China

文献类型：期刊论文

作者Chu, Guoqiang1; Sun, Qing2; Wang, Xiaohua1; Li, Dong1; Rioual, Patrick1; Qiang, Liu1; Han, Jingtai1; Liu, Jiaqi1
刊名JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES
出版日期2009-11-26
卷号114
ISSN号2169-897X
DOI10.1029/2009JD012077
文献子类Article
英文摘要A multiproxy record from Lake Xiaolongwan, northeastern China, reveals distinct stratigraphical patterns in organic carbon, total nitrogen, organic carbon isotope, nitrogen isotope, clastic content and dinocyst concentration, over the past 1600 years. High atomic C/N ratios in the sediment suggest that a large amount of organic matter in the sediments is derived from vascular plants and soil in the catchment. Based on the good agreement between cyclical variations of delta C-13(org) in the sediments and the spring drought index from historical documents, we interpret that the variation of delta C-13(org) in the sediments is an indicator of humidity or precipitation in the study area. Several notable drought periods with heavier delta C-13(org) occurred during AD 490-570, AD 780-990, AD 1360-1450, AD 1590-1670 and the last 150 years. These century-scale drought episodes correspond to solar activity. It suggests that solar forcing plays an important role for the delta C-13(org) variation in the sediments through driving the changes in humidity/vapor pressure deficit. Dinocyst concentration is high during most of the Medieval Warm Period, and low during the European Dark Age and the Little Ice Age. The increase in dinocyst concentration is generally synchronous with decrease of delta N-15 value. The delta N-15 values in the studied lake are most likely influenced by the duration and intensification of lake overturn, which regulates the amount of depleted delta N-15 nutrients (dissolved organic nitrogen and ammonium) and dinoflagellate blooms.
WOS关键词RADIOCARBON AGE CALIBRATION ; PARTICULATE ORGANIC-MATTER ; JILIN PROVINCE ; ATMOSPHERIC NITROGEN ; ISOTOPIC COMPOSITION ; NITRATE UTILIZATION ; STABLE-ISOTOPES ; EAST-AFRICA ; TIME-SERIES ; CARBON
WOS研究方向Meteorology & Atmospheric Sciences
语种英语
出版者AMER GEOPHYSICAL UNION
WOS记录号WOS:000272147000004
资助机构Chinese Academy of Sciences(KZCX2-YW-02 ; Chinese Academy of Sciences(KZCX2-YW-02 ; National Basic Research Program of China(2004CB720207) ; National Basic Research Program of China(2004CB720207) ; National Natural Science Foundation of China(40571148) ; National Natural Science Foundation of China(40571148) ; 2006CB400503) ; 2006CB400503) ; Chinese Academy of Sciences(KZCX2-YW-02 ; Chinese Academy of Sciences(KZCX2-YW-02 ; National Basic Research Program of China(2004CB720207) ; National Basic Research Program of China(2004CB720207) ; National Natural Science Foundation of China(40571148) ; National Natural Science Foundation of China(40571148) ; 2006CB400503) ; 2006CB400503) ; Chinese Academy of Sciences(KZCX2-YW-02 ; Chinese Academy of Sciences(KZCX2-YW-02 ; National Basic Research Program of China(2004CB720207) ; National Basic Research Program of China(2004CB720207) ; National Natural Science Foundation of China(40571148) ; National Natural Science Foundation of China(40571148) ; 2006CB400503) ; 2006CB400503) ; Chinese Academy of Sciences(KZCX2-YW-02 ; Chinese Academy of Sciences(KZCX2-YW-02 ; National Basic Research Program of China(2004CB720207) ; National Basic Research Program of China(2004CB720207) ; National Natural Science Foundation of China(40571148) ; National Natural Science Foundation of China(40571148) ; 2006CB400503) ; 2006CB400503)
源URL[http://ir.iggcas.ac.cn/handle/132A11/70526]  
专题中国科学院地质与地球物理研究所
通讯作者Chu, Guoqiang
作者单位1.Chinese Acad Sci, Key Lab Cenozo Geol & Environm, Inst Geol & Geophys, Beijing 100029, Peoples R China
2.Natl Res Ctr Geoanal, Beijing 100037, Peoples R China
推荐引用方式
GB/T 7714		 Chu, Guoqiang,Sun, Qing,Wang, Xiaohua,et al. A 1600 year multiproxy record of paleoclimatic change from varved sediments in Lake Xiaolongwan, northeastern China[J]. JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,2009,114.
APA Chu, Guoqiang.,Sun, Qing.,Wang, Xiaohua.,Li, Dong.,Rioual, Patrick.,...&Liu, Jiaqi.(2009).A 1600 year multiproxy record of paleoclimatic change from varved sediments in Lake Xiaolongwan, northeastern China.JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES,114.
MLA Chu, Guoqiang,et al."A 1600 year multiproxy record of paleoclimatic change from varved sediments in Lake Xiaolongwan, northeastern China".JOURNAL OF GEOPHYSICAL RESEARCH-ATMOSPHERES 114(2009).

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来源：地质与地球物理研究所

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