| Characterization of the composition of dust fallout and identification of dust sources in arid and semiarid North China | |
| Wang, Xunming1,2; Dong, Zhibao1; Zhang, Caixia1; Qian, Guangqiang1; Luo, Wanyin1 | |
| 刊名 | GEOMORPHOLOGY
 |
| 2009-11-01 | |
| 卷号 | 112期号:1-2页码:144-157 |
| 关键词 | Dust fallout Potential dust source area Elemental analysis Principal components analysis China |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2009.05.013 |
| 通讯作者 | Wang, Xunming(xunming@lzb.ac.cn) |
| 英文摘要 | A source analysis to characterize the composition of dust fallout in arid and semiarid North China, an important source area of dust for East Asia, was performed. Monthly samples were obtained from April 2001 to March 2002 at 29 sites in sandy and gobi deserts, steppes, and loess areas, and the following elements were analyzed: Ce, Co, Cs, Eu, Fe, Hf, Lu, Nd, Rb, Sc, Ta, Tb, Th, As, La, Na, Sb, Sm, U, Yb, Al, Ca, Mg, Mn, Ti, and V. Although the dust compositions differed, it was difficult to determine the potential dust source areas based solely on the elemental fingerprints of the dust. Principal components analysis showed that at most sites Sm, Sc, La, Ce, Eu, and Th were most strongly correlated (r>0.7) with other elements, whereas crustal elements such as Al, Fe, and Ti were only strongly correlated with the other elements at a few sites. Of the 26 elements that we analyzed, maybe only Sb was representative of anthropogenic pollution, but pollutant sources were unclear because at most sites, in different months, the crustal-derived elements and those derived from anthropogenic pollutants always appeared synchronously, creating difficulties and high uncertainties in source identification. (C) 2009 Elsevier B. V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | ASIAN DUST ; LOESS PLATEAU ; TRACE-ELEMENT ; ATMOSPHERIC TRANSPORT ; PARTICULATE MATTER ; COARSE PARTICLES ; MINERAL AEROSOL ; DRY DEPOSITION ; AEOLIAN DUST ; ACE-ASIA |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| 出版者 | ELSEVIER SCIENCE BV |
| WOS记录号 | WOS:000273386600011 |
| 内容类型 | 期刊论文 |
| URI标识 | http://www.corc.org.cn/handle/1471x/2556267 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Wang, Xunming |
| 作者单位 | 1.Chinese Acad Sci, Environm & Engn Res Inst, Key Lab Desert & Desertificat Cold & Arid Reg, Lanzhou 730000, Peoples R China 2.Lanzhou Univ, CAEP, MOE Key Lab W Chinas Environm Syst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xunming,Dong, Zhibao,Zhang, Caixia,et al. Characterization of the composition of dust fallout and identification of dust sources in arid and semiarid North China[J]. GEOMORPHOLOGY,2009,112(1-2):144-157. |
| APA | Wang, Xunming,Dong, Zhibao,Zhang, Caixia,Qian, Guangqiang,&Luo, Wanyin.(2009).Characterization of the composition of dust fallout and identification of dust sources in arid and semiarid North China.GEOMORPHOLOGY,112(1-2),144-157. |
| MLA | Wang, Xunming,et al."Characterization of the composition of dust fallout and identification of dust sources in arid and semiarid North China".GEOMORPHOLOGY 112.1-2(2009):144-157. |
| 个性服务 |
| 查看访问统计 |
| 相关权益政策 |
| 暂无数据 |
| 收藏/分享 |
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。
修改评论