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

CORC > 地球环境研究所 > 中国科学院地球环境研究所 > 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
刊名	HOLOCENE
	2003-09
卷号	13 期号:5 页码:779-784
关键词	palaeovegetation history monsoon variation Midiwan desert-loess transition northern China Lateglacial Holocene
DOI	10.1191/0959683603hl664rr
文献子类	Article
英文摘要	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.
学科主题	Physical Geography ; Geology
WOS关键词	CLIMATE ; VARIABILITY ; GLACIATION ; PLATEAU ; POLLEN
WOS研究方向	Geography, Physical ; Geosciences, Multidisciplinary
语种	英语
出版者	ARNOLD, HODDER HEADLINE PLC
WOS记录号	WOS:000185320000012
内容类型	期刊论文
源URL	[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.