干旱区生态环境知识资源中心(Arid): Vertical distribution of soil moisture and surface sandy soil wind erosion for different types of sand dune on the southeastern margin of the Mu Us Sandy Land, China

Arid

	Vertical distribution of soil moisture and surface sandy soil wind erosion for different types of sand dune on the southeastern margin of the Mu Us Sandy Land, China
	Fu Chaofeng; Zhao Jingbo; Mei Fanmin; Shao Tianjie; Zuo Jun
来源期刊	Sciences in Cold and Arid Regions
ISSN	1674-3822
出版年	2015
卷号	7 期号:6 页码:675-686
英文摘要	Soil moisture is a critical state affecting a variety of land surface and subsurface processes. We report investigation results of the factors controlling vertical variation of soil moisture and sand transport rate of three types of dunes on the southeastern margin of the Mu Us Sandy Land. Samples were taken from holes drilled to a depth of 4 m at different topographic sites on the dunes, and were analyzed for soil moisture, grain-size distribution and surface sediment discharge. The results show that: (1) The average soil moisture varies in different types of dunes, with the following sequences ordered from highest to lowest: in the shrubs-covered dunes and the trees-covered dunes the sequence is from inter-dunes lowland to windward slope to leeward slope. The average moisture in the bare-migratory sand dunes is sequenced from inter-dunes lowland to leeward slope to windward slope. (2) Vegetation form and surface coverage affect the range of soil moisture of different types of dunes in the same topographic position. The coefficient of variation of soil moisture for shrubs-covered dunes is higher than that of other types of dune. (3) The effect of shrubs on dune soil moisture is explained in terms of the greater ability of shrubs to trap fine-grained atmospheric dust and hold moisture. (4) The estimated sand transport rates over sand dunes with sparse shrubs are less than those over bare-migratory dunes or sand dunes with sparse trees, indicating that shrubs are more effective in inhibiting wind erosion in the sandy land area.
英文关键词	soil moisture surface sandy soil wind erosion vegetation form micro-geomorphology sand dunes desertification control
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:5524735
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/335545
作者单位	Fu Chaofeng, Chang'an University, Key Laboratory of Western Mineral Resources and Geological Engineering, Ministry of Education of China, Xi'an, Shaanxi 710054, China.; Zuo Jun, Chang'an University, Key Laboratory of Western Mineral Resources and Geological Engineering, Ministry of Education of China, Xi'an, Shaanxi 710054, China.; Zhao Jingbo, College of Tourism and Environment Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China.; Shao Tianjie, College of Tourism and Environment Science, Shaanxi Normal University, Xi'an, Shaanxi 710062, China.; Mei Fanmin, Environmental and Chemical Engineering College, Xi'an Polytechnic University, Xi'an, Shaanxi 710048, China.
推荐引用方式 GB/T 7714	Fu Chaofeng,Zhao Jingbo,Mei Fanmin,et al. Vertical distribution of soil moisture and surface sandy soil wind erosion for different types of sand dune on the southeastern margin of the Mu Us Sandy Land, China[J],2015,7(6):675-686.
APA	Fu Chaofeng,Zhao Jingbo,Mei Fanmin,Shao Tianjie,&Zuo Jun.(2015).Vertical distribution of soil moisture and surface sandy soil wind erosion for different types of sand dune on the southeastern margin of the Mu Us Sandy Land, China.Sciences in Cold and Arid Regions,7(6),675-686.
MLA	Fu Chaofeng,et al."Vertical distribution of soil moisture and surface sandy soil wind erosion for different types of sand dune on the southeastern margin of the Mu Us Sandy Land, China".Sciences in Cold and Arid Regions 7.6(2015):675-686.