干旱区生态环境知识资源中心(Arid): 新疆黄土分布规律及粉尘来源

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	新疆黄土分布规律及粉尘来源
其他题名	Spatial-Temporal Distribution of Loess and Source of Dust in Xinjiang
	叶玮 1; 桑长青 1; 赵兴有 2
来源期刊	中国沙漠
ISSN	1000-694X
出版年	2003
卷号	23 期号:5 页码:514-520
中文摘要	通过新疆不同区域地形、黄土时空分布规律、物质组成等资料的对比，结合区域环流形势和沙尘天气的综合分析提出：不同黄土分布亚区，受不同的大气环流、局地环流和地形的作用，具有不同粉尘来源。南亚区主要来自塔克拉玛干沙漠，北亚区主要来自古尔班通古特沙漠，而形成西亚区黄土的粉尘主要来自中亚荒漠。
英文摘要	The loess cover of Xinjiang is one part of the loess belt in China. Based on the differences of regional landform, sedimentary fealnre and material components of Xinjiang loess (mineral, grain size and contents of Ca-C03 ) , it can be divided into three subregions, namely the Northern Subregion, Southern Subregiori and Western Subregion. The results studying on local topographic’ condition, the regional atmospheric motion and the transportation and deposilional processes of dust show that the loess in different subregions of Xinjiang has various sources. It was affected by general atmospheric circulation on several scales and related to the weather processes of dust sources. The Southern Subregion is located at the south of Tianshan Mountains. The loess cover is mainly widespread a-long the northern slope of Kunlun Mountains. The sediments accumulated in Tarim Basin and Taklimakan Desert supported plentiful silts for the loess formation ol this subregion since 880 ka BP. In the northern part of Tianshan Mountains, namely the Northern subregion, ihe loess cover lies at the foot of the West Mountains and northern slope of Tianshan mountains. The dust to form the loess mainly comes from the desert of Junggar Basin. According the TL dating, the loess had been accumulated since 285 ka HP. The Western Subregion is situated at the Yili area and belongs to an intermountane basin of Tianshan Mountain. The loess distributes along the steppe and desert steppe and was mainly accumulated during the Late Pleistocene. The westerly circulation is accounted for the transportation of dust and Central Asia Deserts is the main source ol loess materials of this region.
中文关键词	新疆 ; 黄土分布 ; 粉尘来源
英文关键词	Xinjiang loess distribution dust source
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:1310355
来源机构	中国科学院新疆生态与地理研究所 ; 中国气象局乌鲁木齐沙漠气象研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204679
作者单位	1.中国气象局乌鲁木齐沙漠气象研究所, 乌鲁木齐, 新疆 830002, 中国; 2.中国科学院新疆生态与地理研究所, 乌鲁木齐, 新疆 830011, 中国
推荐引用方式 GB/T 7714	叶玮,桑长青,赵兴有. 新疆黄土分布规律及粉尘来源[J]. 中国科学院新疆生态与地理研究所, 中国气象局乌鲁木齐沙漠气象研究所,2003,23(5):514-520.
APA	叶玮,桑长青,&赵兴有.(2003).新疆黄土分布规律及粉尘来源.中国沙漠,23(5),514-520.
MLA	叶玮,et al."新疆黄土分布规律及粉尘来源".中国沙漠 23.5(2003):514-520.