The significance of Gobi desert surfaces for dust emissions in China: an experimental study
文献类型：期刊论文
| 作者 | Wang, Xunming1,2; Zhang, Caixia2; Wang, Hongtao2; Qian, Guangqiang2; Luo, Wanyin2; Lu, Junfeng2; Wang, Li2 |
| 刊名 | ENVIRONMENTAL EARTH SCIENCES
 |
| 出版日期 | 2011-10-01 |
| 卷号 | 64期号:4页码:1039-1050 |
| 关键词 | Production of dust-sized particles Aeolian abrasion Gobi desert Wind-tunnel experiment China |
| ISSN号 | 1866-6280 |
| DOI | 10.1007/s12665-011-0922-2 |
| 通讯作者 | Wang, Xunming(xunming@lzb.ac.cn) |
| 英文摘要 | A series of experiments to determine the direct emission of dust-sized particles from Gobi surfaces by clean wind (wind without sand), and the potential for aeolian abrasion of Gobi surfaces and beds of gravel and mobile sand to produce fine (<100 mu m) and dust-sized (<10 mu m, PM10) particles under sand-laden winds were conducted. Parent material was obtained from Gobi areas of the Ala Shan Plateau, the region with high dust emissions in arid China. The fine particles produced by aeolian processes were collected using sand traps and sieved the captured materials to exclude particles >100 mu m in diameter and then PM10 by sedimentation was acquired. The Gobi surface provided most of the emitted fine particles during the initial dust emission processes, but subsequently, release of the clay coatings of particles by abrasion becomes the dominant source of fine materials. Under sand-laden winds, PM10 production rates produced by aeolian abrasion of Gobi surfaces ranged between 0.002 and 0.244% of blown materials. After removal of sand, silt, or clay with low resistance to erosion from the Gobi surfaces by the wind, the PM10 production rates caused by aeolian abrasion were similar to those from gravel and sand beds. The results also indicated that after the dust-sized particles with low resistance to erosion were removed, the production of dust-sized particles was unrelated to wind velocity. Under aeolian processes, Gobi deserts in this region therefore play a major role in dust emissions from arid and semiarid China. |
| 收录类别 | SCI |
| WOS关键词 | ATMOSPHERIC MINERAL DUST ; NATURAL DUNE SANDS ; SIZED QUARTZ SILT ; ASIAN DUST ; WIND-TUNNEL ; LABORATORY SIMULATIONS ; CHEMICAL-COMPOSITION ; AEOLIAN ABRASION ; NORTHERN CHINA ; SOIL DUST |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology ; Water Resources |
| WOS类目 | Environmental Sciences ; Geosciences, Multidisciplinary ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000295845600012 |
| 出版者 | SPRINGER |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2556584 |
| 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.Beijing Normal Univ, Coll Resources Sci & Technol, Beijing 100875, Peoples R China 2.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 | Wang, Xunming,Zhang, Caixia,Wang, Hongtao,et al. The significance of Gobi desert surfaces for dust emissions in China: an experimental study[J]. ENVIRONMENTAL EARTH SCIENCES,2011,64(4):1039-1050. |
| APA | Wang, Xunming.,Zhang, Caixia.,Wang, Hongtao.,Qian, Guangqiang.,Luo, Wanyin.,...&Wang, Li.(2011).The significance of Gobi desert surfaces for dust emissions in China: an experimental study.ENVIRONMENTAL EARTH SCIENCES,64(4),1039-1050. |
| MLA | Wang, Xunming,et al."The significance of Gobi desert surfaces for dust emissions in China: an experimental study".ENVIRONMENTAL EARTH SCIENCES 64.4(2011):1039-1050. |
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来源：寒区旱区环境与工程研究所
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