Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/j.aeolia.2017.06.004 |
Characterization of dustfall in rural and urban sites during three dust storms in northern China, 2010 | |
Lyu, Yanli1,3; Qu, Zhiqiang5; Liu, Lianyou1,3; Guo, Lanlan1,2; Yang, Yanyan3,4; Hu, Xia2; Xiong, Yiying1,3; Zhang, Guoming1,3; Zhao, Mengdi1,3; Liang, Bo1,3; Dai, Jiadong1,3; Zuo, Xiyang1,3; Jia, Qingpan1,3; Zheng, Hao1,3; Han, Xujiao1,3; Zhao, Shoudong3; Liu, Qi3 | |
通讯作者 | Liu, Lianyou ; Guo, Lanlan |
来源期刊 | AEOLIAN RESEARCH
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ISSN | 1875-9637 |
EISSN | 2212-1684 |
出版年 | 2017 |
卷号 | 28页码:29-37 |
英文摘要 | Dust transport and deposition processes are important for understanding the environmental risk of dust storms. This study investigated characteristics of dustfall at two rural sites and four urban sites from dust sources to downwind regions during three dust storms (DS1: March 19-22, DS2: April 24-26, DS3: May 7-10, 2010). Analysis of near-surface instantaneous maximum wind speed and prevailing wind direction revealed the dust storms bursted out from northwestern arid and semiarid regions to eastern China. Microaggregates, angular, subangular, columnar, subrounded, and spherical particles were identified by scanning electron microscope. Dust deposition flux (DDF) during the dust storms was significantly high at sites near sand deserts and sandy land. During DS2, DDF was 25.1, 9.9, 2.3, and 1.5 g m(-2) in Jingbian, Shapotou, Lanzhou, and Beijing, respectively. The three dust storms contributed 7.3% of Beijing’s annual dustfall in 2010, which suggests anthropogenic dust might contribute the majority of annual dustfall in urban areas. The mass medium diameter of dustfall during DS2 in Shapotou, Jingbian, Lanzhou, and Beijing was 26.1, 9.0, 16.4, and 15.5 um, respectively. Urban dustfall contained more heavy metals, sulfur and arsenic than rural dustfall. Cadmium contamination was identified in all urban dust particles. Anthropogenic pollutants in combination with mineral dust might lead to complex environmental risk on local, regional, and global scales. China’s environmental pollution control should integrate reductions in land desertification and multisource anthropogenic emissions within the context of climate change mitigation. (C) 2017 Published by Elsevier B.V. |
英文关键词 | Dust storm Instantaneous maximum wind speed Dust deposition flux Particle size Element enrichment |
类型 | Article |
语种 | 英语 |
国家 | Peoples R China |
收录类别 | SCI-E |
WOS记录号 | WOS:000413176000003 |
WOS关键词 | STANDARD REFERENCE SAMPLES ; ASIAN DUST ; ACE-ASIA ; ELEMENTAL COMPOSITION ; PARTICLE-SIZE ; SAHARAN DUST ; TRACE-METALS ; SOIL DUST ; TRANSPORT ; DEPOSITION |
WOS类目 | Geography, Physical |
WOS研究方向 | Physical Geography |
来源机构 | 北京师范大学 |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/197061 |
作者单位 | 1.Beijing Normal Univ, Minist Educ, Key Lab Environm Change & Nat Disaster, Beijing 100875, Peoples R China; 2.Beijing Normal Univ, State Key Lab Earth Surface Proc & Resource Ecol, Beijing 100875, Peoples R China; 3.Beijing Normal Univ, Fac Geog Sci, Acad Disaster Reduct & Emergency Management, Beijing 100875, Peoples R China; 4.Beijing Normal Univ, Sch Environm, Beijing 100875, Peoples R China; 5.Inner Mongolia Agr Univ, Coll Ecol & Environm Sci, Hohhot 010019, Inner Mongolia, Peoples R China |
推荐引用方式 GB/T 7714 | Lyu, Yanli,Qu, Zhiqiang,Liu, Lianyou,et al. Characterization of dustfall in rural and urban sites during three dust storms in northern China, 2010[J]. 北京师范大学,2017,28:29-37. |
APA | Lyu, Yanli.,Qu, Zhiqiang.,Liu, Lianyou.,Guo, Lanlan.,Yang, Yanyan.,...&Liu, Qi.(2017).Characterization of dustfall in rural and urban sites during three dust storms in northern China, 2010.AEOLIAN RESEARCH,28,29-37. |
MLA | Lyu, Yanli,et al."Characterization of dustfall in rural and urban sites during three dust storms in northern China, 2010".AEOLIAN RESEARCH 28(2017):29-37. |
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