| 沙漠与沙漠化 |
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| Major Elemental Characteristics of the Major Dust Source Regions in Northwest China |
| LIU Wei-ming1, YANG Sheng-li1,2, FANG Xiao-min1,2, WANG Ya-dong1 |
| 1.Key Laboratory of Western China's Environmental Systems, Ministry of Education of China & College of Resources and Environment, Lanzhou University, Lanzhou 730000, China;2.Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing 100085, China |
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Abstract Dust is a major kind of aerosol, it may play important role on regional even global climate. The in-depth study on elemental characteristics of the major dust source regions in northwest China relates to cognition of dust accumulation, source and environmental effects in northwest China, North China, Far East and the Pacific regions. Surface soil samples in the Taklimakan Desert, the Gurbantunggut Desert, the Badain Jaran Desert, the Qaidam Basin, the Hexi Corridor and the Loess Plateau were analyzed. The results shows: ①the contents of Mg, Na and Si are apparent different in various regions; ②the elemental characteristics of Lanzhou loess is nearly the same as that of Luochuan loess, except Na; ③The contents of elements are identified by both climate and parent materials.
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Received: 13 June 2007
Published: 20 July 2008
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