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DOI10.1016/j.palaeo.2019.03.004
Climatic controls on peat swamp formation and evolution since 1300 year BP as recorded by phytoliths in the Xishan Mountains, Jiangxi Province, China
Zhang, Xin-Rong1,2; Du, Yu1,2; Ma, Chun-Mei3; Ping, Shuai-Fei1,2; Feng, Chong4; Cui, An-Ning3
发表日期2019
ISSN0031-0182
EISSN1872-616X
卷号522页码:76-88
英文摘要

Over the past millennium, there have been several precipitation temperature cycles characterized by instabilities in the eastern monsoon region in China, but the processes, factors, and anthropogenic activities potentially responsible remain poorly understood. In this study, we present an analysis of phytoliths from borehole core drilled through an ombrotrophic peat mire in Jiangxi Province, China. Our results record three climatic episodes over the past 1300 year: a warmer interval, c. 800-1305 CE, similar to the Medieval Warm Period (MWP); a cooler interval, c. 1305-1860 CE, similar to the Little Ice Age (LIA); and another warmer interval, as the climate entered the Present Warm Period (PWP) after c. 1860 CE. Quantitative analysis of phytolith assemblages demonstrates that the MWP comprised two intervals: the early MWP, c. 800-1140 CE, was progressively wetter in a warm dry setting and late MWP, c. 1140-1305 CE, was warm and humid. The LIA also comprised two intervals: the early LIA, c. 1305-1610 CE, was cool and dry, and the late LIA, c. 1610-1860 CE was cool and humid. Some abrupt climate events occurred at: (1) c. 1050, 1110-1130, and 1780-1845 CE (wet events); (2) c. 1980-1990 CE (dry events); (3) c. 920 and 1770 CE (warm events); (4) c. 980 and 1050 CE (cold events). The transition from the MWP to the LIA, as indicated by phytoliths, was a gradual process that took c. 100 years, and exhibited frequent temperature fluctuations. Correlations between the phytolith assemblages and the solar activity, East Asia Summer Monsoon, El Nino, and La Nina are evident. Solar maxima and La Nina-like conditions are related to warmer and humid conditions that led to clay sand accumulation during the MWP. Solar minima and El Nino-like conditions were associated with a cold and wet climate that led to peat accumulation during the LIA. These observations provide important insights into paleoclimatic change in the eastern monsoonal region of China, and provide a basis on which to understand the response of the Xishan Mountains in SE China to the MWP and LIA, and explore centennial-scale climate fluctuations and their driving mechanisms.


WOS研究方向Physical Geography ; Geology ; Paleontology
来源期刊PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/97756
作者单位1.Jilin Univ, Coll Earth Sci, 2199 Jianshe St, Changchun 130061, Jilin, Peoples R China;
2.Minist Educ, Key Lab Evolut Life & Environm Northeast Asia, Changchun, Jilin, Peoples R China;
3.Nanjing Univ, Sch Geog & Ocean Sci, Nanjing 210023, Jiangsu, Peoples R China;
4.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China
推荐引用方式
GB/T 7714
Zhang, Xin-Rong,Du, Yu,Ma, Chun-Mei,et al. Climatic controls on peat swamp formation and evolution since 1300 year BP as recorded by phytoliths in the Xishan Mountains, Jiangxi Province, China[J],2019,522:76-88.
APA Zhang, Xin-Rong,Du, Yu,Ma, Chun-Mei,Ping, Shuai-Fei,Feng, Chong,&Cui, An-Ning.(2019).Climatic controls on peat swamp formation and evolution since 1300 year BP as recorded by phytoliths in the Xishan Mountains, Jiangxi Province, China.PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY,522,76-88.
MLA Zhang, Xin-Rong,et al."Climatic controls on peat swamp formation and evolution since 1300 year BP as recorded by phytoliths in the Xishan Mountains, Jiangxi Province, China".PALAEOGEOGRAPHY PALAEOCLIMATOLOGY PALAEOECOLOGY 522(2019):76-88.
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