气候变化领域集成服务门户(CCPortal): Environmental conditions leading to the formation of holocene soil layers in the northern Taklimakan Desert, Tarim Basin, northwest China

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DOI	10.1002/gj.985
	Environmental conditions leading to the formation of holocene soil layers in the northern Taklimakan Desert, Tarim Basin, northwest China
	Feng, Q; Liu, W
发表日期	2005
ISSN	0072-1050
起始页码	23
结束页码	34
卷号	40 期号:1
英文摘要	Radiocarbon-dated palaeontological remains and bedding features suggests that climatic changes in the northern Taklimakan Desert since the beginning of the Holocene can be divided into four stages: (i) 12 000-10 000 BP, a cool-to temperate-dry climate resulting in apparent alluvial-fluvial and weak aeolian activities; (ii) 10000-8000BP, a dry cold climate, resulting in large-scale sand dune activity under regional desert expansion; (iii) 8000-3000 BP dry, warm climate, with a decreased area of shifting sand and the fixation of many sand dunes; (iv) 3000 BP to present, rising aeolian activity resulting in sandstorms, under the combined influence of climatic warming and excessive exploitation of land and water resources. Holocene deposits from profiles in the Northern Taklimakan Desert consist mainly of fine-grained aeolian sand and silty clay. The fine aeolian sand was formed from re-sorting of aeolian sand during the cold period of the Holocene, while the silty clay was formed by flood deposition in the Holocene warm period. The desert and desert steppe arboreal species and high CaCO3 content of the warm period strata suggest that the Holocene climate in the area, although generally dry, varied between warm/dry and cold/dry, and, especially in recent times, has become increasingly dry. Copyright (C) 2004 John Wiley Sons, Ltd.
英文关键词	northwest China; northern Taklimakan Desert; Holocene sedimentary sequence; desert environment; palaeoenvironment
WOS研究方向	Geology
WOS类目	Geosciences, Multidisciplinary
WOS关键词	ICE-VOLUME ; C-14 DATA ; CARBONATE ; FRACTIONATION ; DEPOSITS
WOS记录号	WOS:000226953700003
来源期刊	GEOLOGICAL JOURNAL
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239401
作者单位	Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Feng, Q,Liu, W. Environmental conditions leading to the formation of holocene soil layers in the northern Taklimakan Desert, Tarim Basin, northwest China[J]. 中国科学院西北生态环境资源研究院,2005,40(1).
APA	Feng, Q,&Liu, W.(2005).Environmental conditions leading to the formation of holocene soil layers in the northern Taklimakan Desert, Tarim Basin, northwest China.GEOLOGICAL JOURNAL,40(1).
MLA	Feng, Q,et al."Environmental conditions leading to the formation of holocene soil layers in the northern Taklimakan Desert, Tarim Basin, northwest China".GEOLOGICAL JOURNAL 40.1(2005).