气候变化领域集成服务门户(CCPortal): Quantitative assessment of check dam system impacts on catchment flood characteristics – a case in hilly and gully area of the Loess Plateau, China

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DOI	10.1007/s11069-020-04441-7
	Quantitative assessment of check dam system impacts on catchment flood characteristics – a case in hilly and gully area of the Loess Plateau, China
	Wang T.; Hou J.; Li P.; Zhao J.; Li Z.; Matta E.; Ma L.; Hinkelmann R.
发表日期	2021
ISSN	0921030X
起始页码	3059
结束页码	3077
卷号	105 期号:3
英文摘要	The purpose of this study is to investigate the impact of check dams on catchment hydrological response in a small catchment on the hilly and gully area of Chinese Loess Plateau by applying a numerical model at 2 m resolution DEM. The results showed that check dams significantly increase the so-called runoff lag times (lag to generation, lag to peak and lag to end of runoff) at the channel outlet compared to catchments without check dams. Furthermore, the peak runoff discharge at the catchment outlet without check dams decreased by 93.0% compared to with check dams. The total outlet discharge, surface water stored, and infiltration were, respectively, 20.1%, 74.9% and 5.0% of the total precipitation in the check dam catchment, while 75.4%, 22.6% and 2.0% in the system without check dams. Installation of check dams also altered the spatial water distribution of maximum discharge, moving the occurrences of maximum discharge further upstream and, thus, increasing safety downstream. In conclusion, implementing check dams significantly and effectively mitigated flood processes and increased runoff infiltration upstream. © 2021, Springer Nature B.V.
关键词	Check dam Flood characteristics Hilly and gully area Loess plateau Numerical modeling Quantitative assessment
英文关键词	catchment; computer simulation; dam; discharge; flooding; gully; hill; hydrological response; infiltration; numerical model; quantitative analysis; runoff; spatial distribution; China; Loess Plateau
语种	英语
来源期刊	Natural Hazards
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/206648
作者单位	State Key Laboratory of Eco-Hydraulics in Northwest Arid Region of China, Xi’an University of Technology, Xi’ an, Shaanxi 710048, China; Chair of Water Resources Management and Modeling of Hydrosystems, Department of Civil Engineering, Technische Universität Berlin, TIB 1-B14, Gustav-Meyer-Allee 25, Berlin, 13355, Germany; Key Laboratory of National Forestry Administration On Ecological Hydrology and Disaster Prevention in Arid Regions, Xi’an University of Technology, Xi’an, Shaanxi 710048, China
推荐引用方式 GB/T 7714	Wang T.,Hou J.,Li P.,等. Quantitative assessment of check dam system impacts on catchment flood characteristics – a case in hilly and gully area of the Loess Plateau, China[J],2021,105(3).
APA	Wang T..,Hou J..,Li P..,Zhao J..,Li Z..,...&Hinkelmann R..(2021).Quantitative assessment of check dam system impacts on catchment flood characteristics – a case in hilly and gully area of the Loess Plateau, China.Natural Hazards,105(3).
MLA	Wang T.,et al."Quantitative assessment of check dam system impacts on catchment flood characteristics – a case in hilly and gully area of the Loess Plateau, China".Natural Hazards 105.3(2021).