Seasonal variations in dustfall and its iron content over North China
文献类型：期刊论文
| 作者 | Li Jinchang; Dong Zhibao; Wang Xunming; Qian Guangqiang; Luo Wanyin |
| 刊名 | ADVANCES IN ATMOSPHERIC SCIENCES
 |
| 出版日期 | 2008-05-01 |
| 卷号 | 25期号:3页码:467-473 |
| 关键词 | Asian dust iron deposition dust emission dust sources |
| ISSN号 | 0256-1530 |
| DOI | 10.1007/s00376-008-0467-9 |
| 通讯作者 | Li Jinchang(lijch@lzb.ac.cn) |
| 英文摘要 | Extensive dustfall collections were carried out from April 2001 to May 2002 in North China. The highest level of dustfall occurred in the Gobi deserts and at the margins of sandy deserts in the region. The iron content in dustfall in North China varied from 0.6% to 6.0% and there was significant seasonal variation, which indicates the dust sources differed during the year. Although the iron content in dustfall in North China is higher in the Loess Plateau and arable lands and lower in the Gobi and sandy deserts, the total iron deposition was higher in the Gobi desert regions. If the fine particles (PM(10)) in dustfall in North China are the major contributors of dust transport to eastern China and western parts of the North Pacific, then the annual deposition rates of iron may have been underestimated in previous studies. Our analysis indicates that iron deposition may reach 1.38 x 10(3) to 2.43 x 10(3) kg km(-2) and that most iron deposition occurs in spring and summer. If the more-coarse fractions (PM(50)) are considered, deposition rates may reach 2.75 x 10(3) and 6.80 x 10(3) kg km(-2), which would represent a large source of iron deposition in eastern China and the western North Pacific. |
| 收录类别 | SCI |
| WOS关键词 | ASIAN DUST ; ATMOSPHERIC TRANSPORT ; CHEMICAL-COMPOSITION ; PACIFIC-OCEAN ; LOESS PLATEAU ; AEOLIAN DUST ; DEPOSITION ; EMISSION ; CLIMATE ; STORMS |
| WOS研究方向 | Meteorology & Atmospheric Sciences |
| WOS类目 | Meteorology & Atmospheric Sciences |
| 语种 | 英语 |
| WOS记录号 | WOS:000255723900014 |
| 出版者 | SCIENCE PRESS |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556107 |
| 专题 | 寒区旱区环境与工程研究所 |
| 通讯作者 | Li Jinchang |
| 作者单位 | Chinese Acad Sci, Key Lab Desert & Desertificat, Cold & Arid Reg Environm & Engn Res Inst, Lanzhou 730000, Peoples R China |
| 推荐引用方式 GB/T 7714 | Li Jinchang,Dong Zhibao,Wang Xunming,et al. Seasonal variations in dustfall and its iron content over North China[J]. ADVANCES IN ATMOSPHERIC SCIENCES,2008,25(3):467-473. |
| APA | Li Jinchang,Dong Zhibao,Wang Xunming,Qian Guangqiang,&Luo Wanyin.(2008).Seasonal variations in dustfall and its iron content over North China.ADVANCES IN ATMOSPHERIC SCIENCES,25(3),467-473. |
| MLA | Li Jinchang,et al."Seasonal variations in dustfall and its iron content over North China".ADVANCES IN ATMOSPHERIC SCIENCES 25.3(2008):467-473. |
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来源：寒区旱区环境与工程研究所
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