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DOI	10.1016/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 X.-R.; Du Y.; Ma C.-M.; Ping S.-F.; Feng C.; Cui A.-N.
发表日期	2019
ISSN	0031-0182
起始页码	76
结束页码	88
卷号	522
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 Niño, and La Niña are evident. Solar maxima and La Niña-like conditions are related to warmer and humid conditions that led to clay–sand accumulation during the MWP. Solar minima and El Niño-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. © 2019 Elsevier B.V.
英文关键词	Controlling factors; Little Ice Age; Medieval Warm Period; Paludification; Swamp evolution
语种	英语
scopus关键词	borehole; climate variation; El Nino; human activity; La Nina; Little Ice Age; Medieval Warm Period; paleoclimate; peat; phytolith; precipitation (climatology); solar activity; swamp; temperature gradient; China; Far East; Jiangxi; Shanxi; Xishan Mountain
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/150995
作者单位	College of Earth Sciences, Jilin University, Changchun, 130061, China; Key-Lab for Evolution of Past Life and Environment in Northeast Asia, Ministry of Education, China; School of Geography and Ocean Science, Nanjing University, Nanjing, 210023, China; Faculty of Geographical Science, Beijing Normal University, Beijing, 100875, China
推荐引用方式 GB/T 7714	Zhang X.-R.,Du Y.,Ma C.-M.,等. 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.
APA	Zhang X.-R.,Du Y.,Ma C.-M.,Ping S.-F.,Feng C.,&Cui A.-N..(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.
MLA	Zhang X.-R.,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).