Arid
DOI10.1016/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
ISSN1875-9637
EISSN2212-1684
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.
条目包含的文件
条目无相关文件。
个性服务
推荐该条目
保存到收藏夹
导出为Endnote文件
谷歌学术
谷歌学术中相似的文章
[Lyu, Yanli]的文章
[Qu, Zhiqiang]的文章
[Liu, Lianyou]的文章
百度学术
百度学术中相似的文章
[Lyu, Yanli]的文章
[Qu, Zhiqiang]的文章
[Liu, Lianyou]的文章
必应学术
必应学术中相似的文章
[Lyu, Yanli]的文章
[Qu, Zhiqiang]的文章
[Liu, Lianyou]的文章
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。