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	Formation and evolution of sand deserts in Xinjiang, Northwest China: II. The palaeo-environmental reconstruction
	Zhu B. Q. ; Yu J. J. ; Qin X. G. ; Rioual P. ; Zhang Y. C. ; Xiong H. G.
	2014
关键词	sandy desert Tertiary Quaternary ancient aeolian sediment palaeoclimate change Xinjiang southern tarim basin keriya river hydrological changes taklimakan desert taklamakan desert tibetan plateau climatic-change northern china loess deposits inner-mongolia
英文摘要	Based on the palaeoclimatic and palaeoenvironmental evidences of geological history and human history periods, this paper reviews the researches and progresses on the development of the sandy deserts in Xinjiang. It pointed out that the features of tectonic structure in Xinjiang had made both the Tarim Basin and the Junggar Basin being influenced greatly by the foehn effects originated from the planetary wind system of westerly, the East Asian ocean-continental monsoon and the topographical mountain-valley winds. The regional patterns of climate and environment since the Quaternary were characterized by the overall persistent drought accompanied by fluctuations in the secondary scale. Formations of aeolian sediments in the basins and at the margins are a potential response to global climate change, particularly the aridification of the Asian hinterland deduced by the uprising of the Tibetan Plateau and its surrounding highlands. For the question about the formation time of the Taklamakan Desert, because the research methods, objects and information carriers used in previous studies are different, there are many disputes in the academic circles at present. Evidences from aeolian deposits/rocks at the edge and in the hinterland of these sandy deserts and their chronological data indicate that an arid climate and land surface aeolian processes have occurred at the edge of the Tarim Basin and its hinterland areas since the Tertiary period. However, the duration time of these processes at mass scale should haye begun after the middle Pleistocene and lasted to the Holocene. Occurrence of dune fields in recent 2000 years in the oasis areas should be greatly influenced by human factors.
出处	Journal of Geographical Sciences
卷	24
期	3
页	539-559
收录类别	SCI
语种	英语
ISSN号	1009-637X
内容类型	SCI/SSCI论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/29346]
专题	地理科学与资源研究所_历年回溯文献
推荐引用方式 GB/T 7714	Zhu B. Q.,Yu J. J.,Qin X. G.,et al. Formation and evolution of sand deserts in Xinjiang, Northwest China: II. The palaeo-environmental reconstruction. 2014.

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