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	Causes and controlling pattern of sand hazards at the Danghe Reservoir of Dunhuang in Northwest China
	Xie Sheng-bo1; Qu Jian-jun1; Pang Ying-jun2
刊名	JOURNAL OF MOUNTAIN SCIENCE
	2016-11-01
卷号	13期号:11页码:1973-1983
关键词	Danghe Reservoir Sand source Wind direction Sand drift potential
ISSN号	1672-6316
DOI	10.1007/s11629-016-4067-3
通讯作者	Pang Ying-jun(pangyingjun@caf.ac.cn)
英文摘要	Sand hazards are serious at the Danghe Reservoir of Dunhuang, and efforts to control sand are ineffective because disaster-causing mechanisms are currently unclear. The source of sandy materials, dynamic environment of blown sand, and controlling measures of the reservoir area are investigated using different methods, such as granularity analyses, wind regime and sand transport field observation and analyses, sand drift potential calculation. Accordingly, the sandy materials are found to derive chiefly from the Mingsha Mountain on the north side of the reservoir area. In addition, sand grain in the range of 0.50-0.25 mm and 0.25-0.10 mm are dominant. The prevailing sand-moving wind originates from the N direction, accounting for 15.38% of the yearly total, which coincides in the same direction with sand source, thereby increasing the severity of sand hazards in the reservoir area. The yearly sand DP is 1386.59 VU, the yearly RDP is 567.31 VU, the yearly RDP/DP is 0.41, and the yearly RDD is 183.15A degrees. In the windy season (mainly in summer), sand materials are blown by wind from north to south, and then blocked by the Danghe River. The sand materials then move with an approximate east-west trend into the river channel and produce sediment, thereby causing a disaster. We propose that the sand-controlling pattern of the Danghe Reservoir is dominated by sand blocking in the outer fringe and sand fixing in the inner fringe. Applying windbreak and sand fixation to control sandy material movement into the river channel plays an important role in retarding sedimentation and extending the useful life of the Danghe Reservoir.
收录类别	SCI
WOS关键词	QINGHAI-TIBET RAILWAY ; YELLOW-RIVER ; SEDIMENT SOURCES ; WATER EROSION ; WIND EROSION ; DESERT ; TRANSPORT ; DUNE ; REACH ; DEPOSITION
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Sciences
语种	英语
出版者	SCIENCE PRESS
WOS记录号	WOS:000387032600006
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2557533
专题	寒区旱区环境与工程研究所
通讯作者	Pang Ying-jun
作者单位	1.Chinese Acad Sci, Cold & Arid Reg Environm & Engn Res Inst, Key Lab Desert & Desertificat, Dunhuang Gobi & Desert Res Stn, Lanzhou 730000, Peoples R China 2.Chinese Acad Forestry, Inst Desertificat Studies, Beijing 100091, Peoples R China
推荐引用方式 GB/T 7714	Xie Sheng-bo,Qu Jian-jun,Pang Ying-jun. Causes and controlling pattern of sand hazards at the Danghe Reservoir of Dunhuang in Northwest China[J]. JOURNAL OF MOUNTAIN SCIENCE,2016,13(11):1973-1983.
APA	Xie Sheng-bo,Qu Jian-jun,&Pang Ying-jun.(2016).Causes and controlling pattern of sand hazards at the Danghe Reservoir of Dunhuang in Northwest China.JOURNAL OF MOUNTAIN SCIENCE,13(11),1973-1983.
MLA	Xie Sheng-bo,et al."Causes and controlling pattern of sand hazards at the Danghe Reservoir of Dunhuang in Northwest China".JOURNAL OF MOUNTAIN SCIENCE 13.11(2016):1973-1983.

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