The vegetation and monsoon variations at the desert-loess transition belt at Midiwan in northern China for the last 13 ka

doi:10.1191/0959683603hl664rr

IEECAS OpenIR > 黄土与第四纪地质国家重点实验室（1985-2004）

	The vegetation and monsoon variations at the desert-loess transition belt at Midiwan in northern China for the last 13 ka
	Li, XQ; Zhou, WJ; An, ZS; Dodson, J
	2003-09
发表期刊	HOLOCENE
卷号	13 期号:5 页码:779-784
文章类型	Article
摘要	Fine-resolution palaeovegetation and palaeomonsoon proxies for the last 13 ka have been established at the desert-loess transition belt in northern China. These are based on pollen, organic carbon and delta(13)C analysis of samples from a peat section at Midiwan. Results show that the palaeovegetation underwent nine major changes: desert-grassland, grassland, semi-desert, humid grassland, desert, sparse-wood-grassland, steppe, humid grassland and desert-grassland. An interval with semi-desert, humid grassland and desert is associated with rapid oscillation events of cold-dry conditions (11200 -10600 C-14 yr BP) to cool-humid conditions (10600 - 10200 C-14 yr BP), followed by a change to a cold-dry climate (10200 - 10000 C-14 yr BP). The Holocene optimum (10000 - 7500 C-14 yr BP) and another humid interval (4500 - 3500 C-14 yr BP) have also been detected in the area. During the last 3000 years, dry conditions have prevailed and human impact may have affected the location of desert-loess transition zone. The record therefore shows a sensitive response to climate on sub-Milankovitch timescales, and this suggests that possible forcing factors linked to processes in the north Atlantic and their influence on the Northern Hemisphere Westerlies, and the South China Sea and its influence on Summer Monsoon precipitation, have been important controls on climates and human activity in eastern Asia.
关键词	palaeovegetation history monsoon variation Midiwan desert-loess transition northern China Lateglacial Holocene
学科领域	Physical Geography ; Geology
DOI	10.1191/0959683603hl664rr
关键词[WOS]	CLIMATE ; VARIABILITY ; GLACIATION ; PLATEAU ; POLLEN
收录类别	SCI ; SCIE
语种	英语
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
WOS记录号	WOS:000185320000012
出版者	ARNOLD, HODDER HEADLINE PLC
引用统计	被引频次：59[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.ieecas.cn/handle/361006/11924
专题	黄土与第四纪地质国家重点实验室（1985-2004）
推荐引用方式 GB/T 7714	Li, XQ,Zhou, WJ,An, ZS,et al. The vegetation and monsoon variations at the desert-loess transition belt at Midiwan in northern China for the last 13 ka[J]. HOLOCENE,2003,13(5):779-784.
APA	Li, XQ,Zhou, WJ,An, ZS,&Dodson, J.(2003).The vegetation and monsoon variations at the desert-loess transition belt at Midiwan in northern China for the last 13 ka.HOLOCENE,13(5),779-784.
MLA	Li, XQ,et al."The vegetation and monsoon variations at the desert-loess transition belt at Midiwan in northern China for the last 13 ka".HOLOCENE 13.5(2003):779-784.