干旱区生态环境知识资源中心(Arid): Using sediment grain size characteristics to assess effectiveness of mechanical sand barriers in reducing erosion

Arid

DOI	10.1038/s41598-020-71053-3
	Using sediment grain size characteristics to assess effectiveness of mechanical sand barriers in reducing erosion
	Xie, Yunhu; Dang, Xiaohong; Zhou, Yujuan; Hou, Zhihui; Li, Xiaojia; Jiang, Hongtao; Zhou, Dandan; Wang, Ji; Hai, Chunxing; Zhou, Ruiping
通讯作者	Hai, CX ; Zhou, RP
来源期刊	SCIENTIFIC REPORTS
ISSN	2045-2322
出版年	2020
卷号	10 期号:1
英文摘要	T Wind and sand control features are important tools for limiting desertification. Sand barriers are one of the oldest engineering measures used to reduce wind-sand hazards. Their efficacy and exact mechanism by which they work has remained a topic of scientific debate however. Sediment grain-size distributions can help constrain their utility and function. This research analyzed sediment grain size distributions in samples collected from areas around six different types of sand barriers installed along the southeastern margin of the Tengger Desert. Results were compared with sediment from a bare dune area (no barriers) used as a control. The barrier area samples contained high proportions of coarse sand and relatively low proportions of silty sand and very fine sand. Fine and medium sand were present but clay was not. The lower proportions of fine sand and higher proportions of coarse sand relative to bare dunes documented an effective reduction in aeolian transport by the barriers. Samples from the barrier areas also showed poorer sorting relative to bare dune areas. This appeared as lower kurtosis values and wider frequency distribution curves relative to those measured from bare dunes samples. The wider cumulative frequency curves for samples from the barrier areas likely reflects the higher proportion of coarse-grained material. The Straw/1.5 and PLA/1 barrier types hosted greater sediment accumulation than that observed for the other barrier types (Straw/1, PLA/1.5, Mixed/1 and Mixed/1.5). Sediment grain size distributions showed that the base and middle slope areas of the dune experienced deposition, while the top of the dunes experienced erosion. The Straw/1 barrier (straw installed as a 1x1 m grid) performed best in terms of installation costs and protective effects for the study area. This study demonstrates how sediment grain size distributions can be used as quantitative proxies for sand barrier performance in reducing desertification.
类型	Article
语种	英语
开放获取类型	DOAJ Gold, Green Published
收录类别	SCI-E
WOS记录号	WOS:000567441700013
WOS关键词	FENCES
WOS类目	Multidisciplinary Sciences
WOS研究方向	Science & Technology - Other Topics
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326148
作者单位	[Xie, Yunhu; Li, Xiaojia; Jiang, Hongtao; Zhou, Dandan; Hai, Chunxing; Zhou, Ruiping] Inner Mongolia Normal Univ, Coll Geog Sci, Hohhot 010022, Peoples R China; [Dang, Xiaohong; Wang, Ji] Inner Mongolia Agr Univ, Coll Desert Control Sci & Engn, Hohhot 010018, Peoples R China; [Zhou, Yujuan] Inner Mongolia Water Resources & Hydropower Surve, Hohhot 010020, Peoples R China; [Xie, Yunhu; Hou, Zhihui] Inner Mongolia Acad Agr & Anim Husb Sci, Inst Rural Econ & Informat, Hohhot 010031, Peoples R China
推荐引用方式 GB/T 7714	Xie, Yunhu,Dang, Xiaohong,Zhou, Yujuan,et al. Using sediment grain size characteristics to assess effectiveness of mechanical sand barriers in reducing erosion[J],2020,10(1).
APA	Xie, Yunhu.,Dang, Xiaohong.,Zhou, Yujuan.,Hou, Zhihui.,Li, Xiaojia.,...&Zhou, Ruiping.(2020).Using sediment grain size characteristics to assess effectiveness of mechanical sand barriers in reducing erosion.SCIENTIFIC REPORTS,10(1).
MLA	Xie, Yunhu,et al."Using sediment grain size characteristics to assess effectiveness of mechanical sand barriers in reducing erosion".SCIENTIFIC REPORTS 10.1(2020).