干旱区生态环境知识资源中心(Arid): Aeolian processes on sandy desertification of an alpine meadow: A wind tunnel experiment

Arid

DOI	10.3724/SP.J.1226.2020.00012
	Aeolian processes on sandy desertification of an alpine meadow: A wind tunnel experiment
	An, ZhiShan; Zhang, KeCun; Tan, LiHai; Niu, BaiCheng; Yu, YanPing
通讯作者	Zhang, KC
来源期刊	SCIENCES IN COLD AND ARID REGIONS
ISSN	1674-3822
出版年	2020
卷号	12 期号:1 页码:12-21
英文摘要	In recent years, the desertification of alpine meadows has become a serious ecological problem and has gradually become a threat to regional economic activities in Maqu County. To reveal the mechanism for sandy desertification of alpine meadows, we conducted wind tunnel experiments on aeolian processes over sandy alpine meadows. Results show that the sandflux profile of mix-sized sediment decays exponentially with increasing height. However, the profile pattern of a group of uniform-sized particles depends on the experimental wind speeds. The profile pattern of all the groups studied can be expressed by exponential decay functions when the wind speed is less than or equal to 16 m/s. while that for all the groups studied can be expressed by a Gaussian distribution function when the wind speed is above 16 m/s. The average saltation heights of mixed sands at wind speeds of 12 m/s, 16 m/s, 20 m/s, and 24 m/s were 2.74, 4.19, 5.28, and 6.12 cm, respectively. The mean grain size basically first decreases and then increases with increasing height under different wind speeds. The sorting improves with increasing wind speed, while the kurtosis and skewness show relationships with only the characteristics of the parent soil.
英文关键词	alpine meadow sandy desertification aeolian erosion aeolian transport
类型	Article
语种	英语
收录类别	ESCI
WOS记录号	WOS:000520848100002
WOS关键词	GRAIN-SIZE DISTRIBUTION ; SOIL ORGANIC-MATTER ; SURFACE ; SALTATION ; TRANSPORT ; RAILWAY ; DENSITY ; FLUX
WOS类目	Geography, Physical
WOS研究方向	Physical Geography
Scopus学科分类	Chinese Acad Sci, Key Lab Desert & Desertificat, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China.
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/334264
作者单位	[An, ZhiShan; Zhang, KeCun; Tan, LiHai; Niu, BaiCheng; Yu, YanPing] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Lanzhou 730000, Gansu, Peoples R China; [An, ZhiShan; Zhang, KeCun; Tan, LiHai; Niu, BaiCheng; Yu, YanPing] Chinese Acad Sci, Northwest Inst Ecoenvironm & Resources, Dunhuang Gobi & Desert Res Stn, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China; [An, ZhiShan; Zhang, KeCun; Tan, LiHai] Chinese Acad Sci, Key Lab Desert & Desertificat, 320 West Donggang Rd, Lanzhou 730000, Gansu, Peoples R China; [An, ZhiShan; Niu, BaiCheng; Yu, YanPing] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	An, ZhiShan,Zhang, KeCun,Tan, LiHai,et al. Aeolian processes on sandy desertification of an alpine meadow: A wind tunnel experiment[J],2020,12(1):12-21.
APA	An, ZhiShan,Zhang, KeCun,Tan, LiHai,Niu, BaiCheng,&Yu, YanPing.(2020).Aeolian processes on sandy desertification of an alpine meadow: A wind tunnel experiment.SCIENCES IN COLD AND ARID REGIONS,12(1),12-21.
MLA	An, ZhiShan,et al."Aeolian processes on sandy desertification of an alpine meadow: A wind tunnel experiment".SCIENCES IN COLD AND ARID REGIONS 12.1(2020):12-21.