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DOI10.1016/j.quaint.2014.03.013
Palaeosol development in the Chinese Loess Plateau as an indicator of the strength of the East Asian summer monsoon: Evidence for a mid-Holocene maximum
Wang, Haipeng; Chen, Jianhui; Zhang, Xiaojian; Chen, Fahu
发表日期2014
ISSN1040-6182
卷号334页码:155-164
英文摘要

The interpretation of the stalagmite delta O-18 record from southern China as an indicator of East Asian summer monsoon (EASM) rainfall amount or intensity is strongly debated. Soil development in the Chinese Loess Plateau (CLP), situated in the modern summer monsoon domain, has long been treated as a direct and reliable EASM proxy. In this study, we compiled 81 loess and 229 palaeosol dates from 77 profiles across the CLP and synthesized the data statistically in order to investigate the EASM history during the Holocene. The resulting history of Holocene loess deposition and palaeosol development demonstrates that: (1) loess deposition decreased and palaeosol formation increased across the CLP after 11.5 ka (1 ka = 1000 cal yr BP), revealing a gradually intensified EASM during the early Holocene; (2) numerous palaeosols developed in the CLP between 8.8 ka and 3.4 ka, indicating a generally strong EASM during the mid-Holocene; (3) the number of palaeosol dates decreased rapidly at around 3 ka, suggesting a sudden retreat of the EASM in the late Holocene. These trends of EASM evolution are broadly consistent with variations in aeolian sand activity in the four main sandlands (the Mu Us, Otindag, Horqin and Hulun Buir sandlands) along the modern monsoon fringe in northern China, and are supported by a wide range of independent evidence. In addition we also found that high loess deposition and stronger aeolian activity occurred at similar to 5 ka, representing a weak EASM event within the context of an overall strong mid-Holocene EASM. The strong mid-Holocene EASM, revealed by palaeosol development in the CLP and aeolian sand activity in the sandlands in northern China, contrasts with the early Holocene EASM maximum suggested by stalagmite delta O-18 data from southern China. Our results are compatible with the proposal that the stalagmite delta O-18 variations in China do not result from changes in EASM rainfall amount or intensity, but instead reflect changes in moisture source driven by variations in atmospheric-oceanic circulation. (C) 2014 Elsevier Ltd and INQUA. All rights reserved.


英文关键词Holocene;Palaeosol development;Aeolian activity;Chinese Loess Plateau;East Asian summer monsoon
语种英语
WOS研究方向Physical Geography ; Geology
WOS类目Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号WOS:000338817800016
来源期刊QUATERNARY INTERNATIONAL
来源机构兰州大学 ; 中国科学院青藏高原研究所
文献类型期刊论文
条目标识符http://gcip.llas.ac.cn/handle/2XKMVOVA/1946
推荐引用方式
GB/T 7714
Wang, Haipeng,Chen, Jianhui,Zhang, Xiaojian,et al. Palaeosol development in the Chinese Loess Plateau as an indicator of the strength of the East Asian summer monsoon: Evidence for a mid-Holocene maximum[J]. 兰州大学, 中国科学院青藏高原研究所,2014,334:155-164.
APA Wang, Haipeng,Chen, Jianhui,Zhang, Xiaojian,&Chen, Fahu.(2014).Palaeosol development in the Chinese Loess Plateau as an indicator of the strength of the East Asian summer monsoon: Evidence for a mid-Holocene maximum.QUATERNARY INTERNATIONAL,334,155-164.
MLA Wang, Haipeng,et al."Palaeosol development in the Chinese Loess Plateau as an indicator of the strength of the East Asian summer monsoon: Evidence for a mid-Holocene maximum".QUATERNARY INTERNATIONAL 334(2014):155-164.
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