Humification degree of peat and its implications for Holocene climate change in Hani peatland, Northeast China

	Humification degree of peat and its implications for Holocene climate change in Hani peatland, Northeast China
	Ting Huang; Shenggao Cheng; Xumei Mao; Bing Hong; Zhongxia Hu; Ying Zhou
	2013
Source Publication	Chinese Journal of Geochemistry
Volume	32 Issue:4 Pages:406-412
Abstract	The humification degree of peat is a significant climatic proxy for paleoclimate change. Using the alkali-extraction method, a time series of absorbance values of the Hani peatland, Northeast China, was determined, which is used as an indicator for the humification degree of peat. Combined with 14C dating data of peat cellulose, and compared with δ18O and δ13C time series of the cellulose in the Hani peatland, the evidence for the existence of 14 ka paleoclimate was provided. Higher humification degrees hint a warmer-wetter climate, and vice versa. It also reconstructs the four stages of Holocene climate evolution in this region: 11.5–9.8 cal ka B.P., warm and wet period; 9.8–9.0 cal ka B.P., cold and dry period; 9.0–4.8 cal ka B.P., warm and wet period; and 4.8–0 cal ka B.P., warm-wet and dry-cold alternation period. Meanwhile, it is revealed that the abrupt climate shifts signals such as the “8.2 ka” event and the “4.2 ka” event. Results showed that the Hani peat humification degree is of sensitive response to paleoclimate change. Therefore, it is a feasible method to analyze the relationship between paleoclimate change and peat humification degree.
Keyword	Humification Degree Holocene Climate Change Hani Peatland
Indexed By	EI
Language	英语
Document Type	期刊论文
Identifier	http://ir.gyig.ac.cn/handle/42920512-1/11060
Collection	环境地球化学国家重点实验室
Affiliation	1.School of Environment Studies, China University of Geosciences, Wuhan 430074, China 2.State Key Laboratory of Environmental Geochemistry, Institute of Geochemistry, Chinese Academy of Sciences, Guiyang 550002, China
Recommended Citation GB/T 7714	Ting Huang；Shenggao Cheng；Xumei Mao；Bing Hong；Zhongxia Hu；Ying Zhou. Humification degree of peat and its implications for Holocene climate change in Hani peatland, Northeast China[J]. Chinese Journal of Geochemistry,2013,32(4):406-412.
APA	Ting Huang；Shenggao Cheng；Xumei Mao；Bing Hong；Zhongxia Hu；Ying Zhou.(2013).Humification degree of peat and its implications for Holocene climate change in Hani peatland, Northeast China.Chinese Journal of Geochemistry,32(4),406-412.
MLA	Ting Huang；Shenggao Cheng；Xumei Mao；Bing Hong；Zhongxia Hu；Ying Zhou."Humification degree of peat and its implications for Holocene climate change in Hani peatland, Northeast China".Chinese Journal of Geochemistry 32.4(2013):406-412.

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