The influence of dry lakebeds, degraded sandy grasslands and abandoned farmland in the arid inlands of northern China on the grain size distribution of East Asian aeolian dust | |
Yang, Li-rong1; Yue, Le-ping2; Li, Zhi-pei3 | |
刊名 | ENVIRONMENTAL GEOLOGY |
2008-02-01 | |
卷号 | 53期号:8页码:1767-1775 |
关键词 | dry lakebeds sand/dust storm East Asia grain size distribution northern China |
ISSN号 | 0943-0105 |
DOI | 10.1007/s00254-007-0782-y |
文献子类 | Article |
英文摘要 | Dry lakes, degraded sandy grasslands, abandoned farmland and mobile dunes which are widely distributed throughout the arid areas of northern China have been investigated in this work. Gain-size distribution of the surface sediments of Manas lake in Junggar basin, Juyan lake in the Alxa plateau, Zhuye lake in Minqin basin and most deserts (such as Mu Us desert, Otindag desert, Horqin desert and Hulun Buir desert) in China have been analyzed. The results show clay with particle sized < 10 mu m on the surface sediments of dry lakebed and sandy grassland developed from dry lakebed, respectively, account for > 60% and similar to 50% of the total mass. Since the tiny particles on the surface of abandoned farmland are blown away easily and rapidly, the content of clay particles in Minqin basin is < 14%. The grain-size distribution of mobile dunes in northern China mainly consists of particles > 63 mu m and few particles < 10 mu m. Consequently, although sand/dust storms originate primarily in the western deserts, the gobi areas of the Alxa plateau, the north and east of Hexi Corridor and in central Mongolia, the widely distributed dry lakebeds, sandy grasslands and abandoned farmland adjacent to the deserts also contribute to aeolian dusts. Hence, the material sources for sand dust storm in East Asia include inland deserts, but also dry lakes, sandy grasslands and abandoned farmland, which are widely distributed throughout the arid inlands of northern China. |
WOS关键词 | LONG-RANGE TRANSPORT ; NORTHWEST CHINA ; RIVER-BASIN ; ENVIRONMENT ; RESOURCES ; CANADA ; REGION |
WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
语种 | 英语 |
出版者 | SPRINGER |
WOS记录号 | WOS:000252798500015 |
内容类型 | 期刊论文 |
源URL | [http://ir.iggcas.ac.cn/handle/132A11/69060] |
专题 | 中国科学院地质与地球物理研究所 |
通讯作者 | Yang, Li-rong |
作者单位 | 1.Chinese Acad Sci, Grad Sch, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.NW Univ Xian, Dept Geol, Xian 710069, Peoples R China 3.China Geol Survey, Xian Inst Geol & Mineral Resources, Xian 710054, Peoples R China |
推荐引用方式 GB/T 7714 | Yang, Li-rong,Yue, Le-ping,Li, Zhi-pei. The influence of dry lakebeds, degraded sandy grasslands and abandoned farmland in the arid inlands of northern China on the grain size distribution of East Asian aeolian dust[J]. ENVIRONMENTAL GEOLOGY,2008,53(8):1767-1775. |
APA | Yang, Li-rong,Yue, Le-ping,&Li, Zhi-pei.(2008).The influence of dry lakebeds, degraded sandy grasslands and abandoned farmland in the arid inlands of northern China on the grain size distribution of East Asian aeolian dust.ENVIRONMENTAL GEOLOGY,53(8),1767-1775. |
MLA | Yang, Li-rong,et al."The influence of dry lakebeds, degraded sandy grasslands and abandoned farmland in the arid inlands of northern China on the grain size distribution of East Asian aeolian dust".ENVIRONMENTAL GEOLOGY 53.8(2008):1767-1775. |
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