Control of dust emissions by geomorphic conditions, wind environments and land use in northern China: An examination based on dust storm frequency from 1960 to 2003
文献类型：期刊论文
| 作者 | Wang, Xunming; Zhou, Zijiang; Dong, Zhibao |
| 刊名 | GEOMORPHOLOGY
 |
| 出版日期 | 2006-11-29 |
| 卷号 | 81期号:3-4页码:292-308 |
| 关键词 | dust storm frequency wind environments geomorphic conditions desertification Northern China |
| ISSN号 | 0169-555X |
| DOI | 10.1016/j.geomorph.2006.04.015 |
| 通讯作者 | Wang, Xunming(xunming@lzb.ac.cn) |
| 英文摘要 | The degree to which dust emissions are controlled by geomorphic conditions, wind environments and land use was investigated using the dust storm frequency (DSF) and data from more than 300 meteorological stations throughout northern China. Our analysis showed that most dust emissions originated in gobi deserts that developed in piedmont alluvial fans of the Kunlun, Qilian and Helan mountains. Dust emissions are low from other gobi desert regions, such as the northern Gurbantunggut and eastern Taklimakan, where high vegetation coverage restrained dust emissions or where dust-size particles are not abundant after a long period of strong wind erosion. Sandy deserts with relatively high vegetation coverage or an extensive cover by mobile sands are not a major dust source. Although the highest dust emissions did not appear in regions with the highest wind energy, DSF trends in each region from 1960 to 2003 were closely related to local wind activity. DSF was low in regions with high levels of human activity, where the mean DSF from 1960 to 2003 did not exceed 4 days/year; even from the 1960s to the early 1970s, the period with the greatest DSF, frequency did not exceed 8 days/year, which indicates that extensive land use did not contribute to DSF. The low DSF in these areas might result from the fact that although land use could produce abundant fine soil fractions, vegetation coverage and soil moisture remained higher than in the gobi deserts of and China, thereby decreasing dust-storm occurrence. (c) 2006 Elsevier B.V. All rights reserved. |
| 收录类别 | SCI |
| WOS关键词 | ATMOSPHERIC MINERAL DUST ; ASIAN DUST ; AEROSOL ; CIRCULATION ; EVENTS |
| WOS研究方向 | Physical Geography ; Geology |
| WOS类目 | Geography, Physical ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000242879700005 |
| 出版者 | ELSEVIER SCIENCE BV |
| URI标识 | http://www.irgrid.ac.cn/handle/1471x/2555852 |
| 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, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Lanzhou 730000, Gansu, Peoples R China 2.Lanzhou Univ, CAEP, MOE Key Lab W Chinas Environm Syst, Lanzhou 730000, Peoples R China 3.China Natl Meteorol Informat Ctr, Beijing 100081, Peoples R China |
| 推荐引用方式 GB/T 7714 | Wang, Xunming,Zhou, Zijiang,Dong, Zhibao. Control of dust emissions by geomorphic conditions, wind environments and land use in northern China: An examination based on dust storm frequency from 1960 to 2003[J]. GEOMORPHOLOGY,2006,81(3-4):292-308. |
| APA | Wang, Xunming,Zhou, Zijiang,&Dong, Zhibao.(2006).Control of dust emissions by geomorphic conditions, wind environments and land use in northern China: An examination based on dust storm frequency from 1960 to 2003.GEOMORPHOLOGY,81(3-4),292-308. |
| MLA | Wang, Xunming,et al."Control of dust emissions by geomorphic conditions, wind environments and land use in northern China: An examination based on dust storm frequency from 1960 to 2003".GEOMORPHOLOGY 81.3-4(2006):292-308. |
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来源：寒区旱区环境与工程研究所
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