干旱区生态环境知识资源中心(Arid): ENVIRONMENTAL EVOLUTION OF ORDOS DESERT IN CHINA SINCE 1.1MA B. P. AS INDICATED BY YULIN STRATIGRAPHICAL SECTION AND ITS GRAIN-SIZE ANALYSIS RESULTS

Arid

DOI	10.1007/s11769-003-0066-8
	ENVIRONMENTAL EVOLUTION OF ORDOS DESERT IN CHINA SINCE 1.1MA B. P. AS INDICATED BY YULIN STRATIGRAPHICAL SECTION AND ITS GRAIN-SIZE ANALYSIS RESULTS
	LI Bao-sheng; Gao Shangyu; DONG Guang-rong; JIN He-ling
来源期刊	Chinese Geographical Science
ISSN	1002-0063
出版年	2005
卷号	15 期号:1 页码:34-41
英文摘要	Yulin section is a typical sedimentary record for reflecting the environmental evolution of OrdosDesert, China in the past 1.1Ma. By analyzing its sequence and grain-size composition some views have been put for-ward in this paper as follows. The layers of sand, loess and palaeosol in Yulin section were respectively formed bywind and the pedogenesis on parent material of the sand and loess. Since 1.1Ma B. P., Ordos Desert has alternately ex-perienced 11 stages of shifting dunes under extreme cold-dry climatic environment, 7 stages of fixed and semi-fixeddunes and 8 stages of dust (loess) under cold-dry climatic condition; and the pedogenesis environment under 15 timesof warm-humid climate and 3 times of temperate-humid climate (brownish-drab soils and black soils formed respec-tively). The aeolian sand had already existed in Ordos Desert at latest by 1.1Ma B. P., and from that time on it has un-dergone a series of alternative processes of shifting sands, fixed and semi-fixed dunes, loess and soils. Ordos Deserthas been situated in the transitional belt of the Mongolian High Pressure and margin of the southeast summer mon-soon since 1.1Ma B. P., and influenced repeatedly by migration of the lithofacies belts of shifting sands, fixed andsemi-fixed dunes, loess and soils, which have been caused by the climatic fluctuations of glacial and interglacial periods.
英文关键词	Ordos Desert Yulin stratigraphical section past 1.1 Ma grain-size composition environment evolution
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Geology
CSCD记录号	CSCD:1874408
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334876
作者单位	LI Bao-sheng, Department of Geography, South China Normal University, Guangzhou, GuangDong 510631, China.; Gao Shangyu, Institute of Resources Sciences, Beijing Normal University, BeiJing 100875, China.; DONG Guang-rong, Cold and A rid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, GanSu 730000, China.; JIN He-ling, Cold and A rid Regions Environmental and Engineering Research Institute, Chinese Academy of Sciences, Lanzhou, GanSu 730000, China.
推荐引用方式 GB/T 7714	LI Bao-sheng,Gao Shangyu,DONG Guang-rong,et al. ENVIRONMENTAL EVOLUTION OF ORDOS DESERT IN CHINA SINCE 1.1MA B. P. AS INDICATED BY YULIN STRATIGRAPHICAL SECTION AND ITS GRAIN-SIZE ANALYSIS RESULTS[J],2005,15(1):34-41.
APA	LI Bao-sheng,Gao Shangyu,DONG Guang-rong,&JIN He-ling.(2005).ENVIRONMENTAL EVOLUTION OF ORDOS DESERT IN CHINA SINCE 1.1MA B. P. AS INDICATED BY YULIN STRATIGRAPHICAL SECTION AND ITS GRAIN-SIZE ANALYSIS RESULTS.Chinese Geographical Science,15(1),34-41.
MLA	LI Bao-sheng,et al."ENVIRONMENTAL EVOLUTION OF ORDOS DESERT IN CHINA SINCE 1.1MA B. P. AS INDICATED BY YULIN STRATIGRAPHICAL SECTION AND ITS GRAIN-SIZE ANALYSIS RESULTS".Chinese Geographical Science 15.1(2005):34-41.