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

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	Aeolian processes on sandy desertification of an alpine meadow: A wind tunnel experiment
	An Zhishan; Zhang Kecun; Tan Lihai; Niu Baicheng; Yu Yanping
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	CSCD
WOS研究方向	Environmental Sciences & Ecology
CSCD记录号	CSCD:6696712
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336271
作者单位	An Zhishan, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences;;Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences;;Key Laboratory of Desert and Desertification,Chinese Academy of Sciences;;University of Chinese Academy of Sciences, ;;Dunhuang Gobi and Desert Research Station,Chinese Academy of Sciences;;Key Laboratory of Desert and Desertification,Chinese Academy of Sciences;;, Lanzhou;;Lanzhou;;Lanzhou;;, Gansu;;Gansu;;Gansu;;Beijing 730000;;730000;;730000;;100049.; Zhang Kecun, Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences;;Northwest Institute of Eco-Environment and Resources,Chinese Academy of Sciences;;Key Laboratory of Desert and Desertification,Chinese Academy of Sciences, ;;Dunhuang Gobi and Desert Research Station,Chinese Academy of Sciences;;Key Laboratory of Desert and Desertification,Chinese Academy of Sciences, Lanzhou;;Lanzhou;;Lanzhou, Gansu;;Gansu;;Gansu 730000;;730000;;730000.; Tan Lihai, Northw...
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.