Please wait a minute...
img

Wechat

Adv search
JOURNAL OF DESERT RESEARCH  2009, Vol. 29 Issue (1): 63-67    DOI:
沙漠与沙漠化     
Wind Tunnel Study of Wind Erosion and Dust Flux on Different Surfaces in Dry Ebinur Lake, Xinjiang, China

Jilili-Abudouwaili1, LIU Dong-wei1,2, XU Jun-rong1

1.Xinjiang Institute of Ecology and Geography, Chinese Academy of Sciences, Urumqi Xijiang 830011, China; 2.Graduate University of Chinese Academy of Sciences, Beijing 100049, China
Download:  PDF (956KB) 
Export:  BibTeX | EndNote (RIS)      
Abstract  

Seven forms of original soil samples were sampled from dry Ebinur Lake and neighboring region in western Jungar Basin, Xinjiang. Their susceptibility to wind erosion and the dust flux has been tested in a wind tunnel. Results showed that: The threshold wind velocity is the smallest on the powdery salt crust and the silt-clay mixed sediment crust with lower salt content, and the largest on the hard salt crust; Gale with velocity over than 15 m·s-1 is the main erosion force; The lacustrine sediments, eolian sediment and powdery salt crust among the 7 types of surface crusts have higher erosion rates, which are the principal dust sources of dust- and salt-dust storms; Particles transportation are originally concentrated with 0 to 10 cm height, and predominated by saltation; The flux over lacustrine sediments, eolian sediment and powdery salt crust are lager.

Key words:  dry lakebed (Playa)      soil erosion      salt dust      wind tunnel     
Received:  26 March 2008      Published:  20 January 2009
ZTFLH:  S157.1  

Cite this article: 

Jilili-Abudouwaili;LIU Dong-wei;XU Jun-rong. Wind Tunnel Study of Wind Erosion and Dust Flux on Different Surfaces in Dry Ebinur Lake, Xinjiang, China. JOURNAL OF DESERT RESEARCH, 2009, 29(1): 63-67.

URL: 

http://www.desert.ac.cn/EN/     OR     http://www.desert.ac.cn/EN/Y2009/V29/I1/63

[1]Orlovsky N,Orlovsky L,Yang Youlin,et al. Salt duststorms of central Asia since 1960s[J].中国沙漠,2003,23(1):18-27.
[2]Tegen I.Modeling the mineral dust aerosol cycle in the climate system[J].Quat Sci Rev,2003,22:1821-1834.
[3]吉力力·阿不都外力,徐俊荣,穆桂金,等.艾比湖盐尘对周边地区土壤盐分及景观变化的影响[J].冰川冻土,2007,29(6):928-939.
[4]王金艳,王式功,马艳,等.我国北方春季沙尘暴与气候因子之关系[J].中国沙漠,2007,27(2):296-300.
[5]江远安,魏荣庆,王铁,等.塔里木盆地西部浮尘天气特征分析[J].中国沙漠,2007,27(2):301-306.
[6]Thomas E G.Eolian sediments generated by anthropogenic disturbance of playas:human impacts on the geomorphic system and geomorphic impacts on the human system[J].Geomorphology,1996,17:207-228.
[7]Gillette D,Ono D,Richmond K.A combined modeling and measurement technique for estimating windblown dust emissions at Owens (dry) Lake,California[J/OL].J Geophys Res,2004,109,F01003,doi:10.1029/2003JF000025.
[8]Gillette D A,Niemeyer T C,Helm P J.Supply-limited horizontal sand drift at an ephemerally crusted,unvegetated saline playa[J].J Geophys Res,2001,106(D16):18085-18098.
[9]Mu Guijin,Yan Shun,Jilil Abuduwai,et al.Wind erosion at the dry-up bottom of Aiby Lake—A case study on the source of air dust[J].中国科学(D辑),2002,45:157-164.
[10]岳乐平,杨利荣,李智佩,等.阿拉善高原干涸湖床沉积物与华北地区沙尘暴[J].第四纪研究,2004,24(3):311-315.
[11]Reynolds R L,Yount J C,Reheis M,et al.Dust emission from wet and dry playas in the Mojave Desert,USA[J].Earth Surf Process Landforms,2007,32:1811-1827.
[12]Rice M A,McEwan I K.Crust strength:A wind tunnel study of the effect of impact by saltating particles on cohesive soil surfaces[J].Earth Surface Processes and Landforms,2001,26:721-733.
[13]Argaman E,Singer A,Tsoar H.Erodibility of some crust forming soils sediments from the Southern Aral Sea Basin as determined in a wind tunnel[J].Earth Surf Processes and Landforms,2006,31:47-63.
[14]Houser C A,Nickling W G.The emission and vertical flux of particulate matter <10 μm from a disturbed clay-crusted surface[J].Sedimentology,2001,48:255-267.
[15]Gillette D A,Fryrear D W,Gill T E,et al.Relation of vertical flux of particles smaller than 10 mm to total aeolian horizontal mass flux at Owens Lake[J].Journal of Geophysical Research—Atmospheres,1997,102(D22):26009-26015.
[16]李万源,沈志宝,吕世华,等 风蚀影响因子的敏感性试验[J].中国沙漠,2007,27(6):984-993.
[17]王鹏翔,孙兰东,岳平,等.盐池地区沙尘暴期间风沙运动若干特征研究[J].中国沙漠,2007,27(6):1077-1079.
[18]刘连友,宋阳,李小雁,等.中国干旱区不同成因沉积物吹蚀速率的实验研究[J].地理学报,2006,61(9):957-964.

No Suggested Reading articles found!