Arid
DOI10.1016/j.catena.2015.06.011
Horizontal wind erosion flux and potential dust emission in arid and semiarid regions of China: A major source area for East Asia dust storms
Wang, Haibing1; Jia, Xiaopeng1; Li, Kuan2; Li, Yongshan1
通讯作者Wang, Haibing
来源期刊CATENA
ISSN0341-8162
EISSN1872-6887
出版年2015
卷号133页码:373-384
英文摘要

Arid and semiarid regions of China are important sources of dust for storms that affect East Asia and the western Pacific Ocean. However, little is known about the process, spatial variation, and quantity of the emission and transportation of windblown sand/dust from such areas. In 2009, a large number of passive sand traps were set on different landscape surfaces across the arid and semiarid regions of China, to monitor the horizontal wind erosion flux and establish the potential of dust emission. The monitoring data suggest that the Taklamakan Desert has the greatest wind erosion flux. The mean wind erosion flux of the marginal sand seas, hinterland sand seas, Gobi-type desert, and degraded land of oases in this area is 45.07, 32.37, 31.11, and 19.83 kg day(-1) m(-2), respectively. During the aeolian transport process, the mean limit of a suspended load particle size is 0.066 mm, aeolian sediment mean grain size and sorting are 0.11 mm and 1.40, respectively, and potential PM10 dust emission rate is 0.969 kg day(-1) m(-2). The Qaidam Basin and Dunhuang areas and the Hexi Corridor and Alax areas also have strong wind erosion flux. The mean wind erosion flux for the Gobi-type deserts in these areas is 11.57 and 39.16 kg day(-1) m(-2), respectively, while for the degraded land of oases it is 14.78 and 12.68 kg day(-1) m(-2), respectively. During the aeolian sediment transport process, the mean limit of a suspended load particle size is 0.083 mm, aeolian sediment mean grain size and sorting are 0.18 mm and 1.82, respectively, and potential PM10 dust emission rate is 1.011 kg day(-1) m(-2). The Mu Us sandy land, steppes of the northern Yinshan Mountains, Hunshandake sandy land and its surrounding steppes, and Horqin sandy land have the weakest wind erosion flux; the mean value of which is 10.53, 5.43, 2.88, and 1.94 kg day(-1) m(-2), respectively. During the aeolian sediment transport process, the mean limit of a suspended load particle size is 0.12 mm, aeolian sediment mean grain size and sorting are 025 mm and 2.1, respectively, and potential PM10 dust emission rate is 0.103 kg day(-1) m(-2). (C) 2015 Elsevier B.V. All rights reserved.


英文关键词Horizontal wind erosion flux PM10 dust emission Northern China Dust storm Sand trap
类型Article
语种英语
国家Peoples R China
收录类别SCI-E
WOS记录号WOS:000359960600038
WOS关键词MINERAL DUST ; TEMPORAL CHARACTERISTICS ; AEOLIAN DUST ; CLIMATE ; VARIABILITY ; DEPOSITION ; PROVENANCE ; TRANSPORT ; DESERT ; SOIL
WOS类目Geosciences, Multidisciplinary ; Soil Science ; Water Resources
WOS研究方向Geology ; Agriculture ; Water Resources
来源机构中国科学院西北生态环境资源研究院
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/186436
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.Inner Mongolia Autonomous Reg Land Invest & Plann, Hohhot 010010, Inner Mongolia, Peoples R China
推荐引用方式
GB/T 7714
Wang, Haibing,Jia, Xiaopeng,Li, Kuan,et al. Horizontal wind erosion flux and potential dust emission in arid and semiarid regions of China: A major source area for East Asia dust storms[J]. 中国科学院西北生态环境资源研究院,2015,133:373-384.
APA Wang, Haibing,Jia, Xiaopeng,Li, Kuan,&Li, Yongshan.(2015).Horizontal wind erosion flux and potential dust emission in arid and semiarid regions of China: A major source area for East Asia dust storms.CATENA,133,373-384.
MLA Wang, Haibing,et al."Horizontal wind erosion flux and potential dust emission in arid and semiarid regions of China: A major source area for East Asia dust storms".CATENA 133(2015):373-384.
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