Runoff-sediment dynamics under different flood patterns in a Loess Plateau catchment, China

doi:10.1016/j.catena.2018.10.023

	Runoff-sediment dynamics under different flood patterns in a Loess Plateau catchment, China
	Hu, Jinfei 2,3; Gao, Peng 1,2; Mu, Xingmin 1,2; Zhao, Guangju 1,2; Sun, Wenyi 1,2; Li, Pengfei 2; Zhang, Limei 1
刊名	CATENA
	2019-02-01
卷号	173 页码:234-245
关键词	Event scale Runoff-sediment relationship Flood patterns Hysteresis loop Sediment dynamics
ISSN号	0341-8162
DOI	10.1016/j.catena.2018.10.023
通讯作者	Gao, Peng(gaopeng@ms.iswc.ac.cn)
英文摘要	Investigating the suspended sediment dynamic is useful for gaining a more comprehensive understanding of runoff and sediment yield process. The study analyzes the sediment flow behavior in relation to the flood patterns in the Xichuan River catchment on the Loess Plateau. Based on 23-year hydrological data collected from Zaoyuan hydrological station and K-medoids clustering method, one hundred and twelve flood events data were classified into four flood patterns. The hydrologic features of different flood patterns exhibit significant differences. The values of the mean runoff depth, the mean flood duration, and the mean flood peak discharge decreased as the following order: Pattern A > Pattern C > Pattern D > Pattern B. Each flood pattern results in differing levels of the event sediment yield (SY), the SY of Pattern A (10,275.33 t.km(-2)) and Pattern C (1196.39 t.km(-2)) were larger than those from Pattern B (218.84 t.km(-2)) and Pattern D (693.84 t.km(-2)). These results indicated that greater attention should be paid to Pattern A and Pattern C because of the largest sediment delivery effect. Multiple stepwise regressions analysis suggested that the contribution of main runoff-related factors to event sediment yield varied with different flood patterns. In addition, hysteretic analysis between suspended sediment concentration and runoff suggested that counter-clockwise and figure-eight loops were the dominant loops. The results provided a useful information to flood pattern classifications and suspended sediment dynamics research, and enriched the sediment control theory at the watershed scale.
资助项目	National Key Scientific Research Project[2016YFC0402401] ; National Natural Science Foundation of China[41671285] ; National Natural Science Foundation of China[41671279] ; Special Funds for Scientific Research Programs of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau[A314021403-Q2]
WOS关键词	SUSPENDED SEDIMENT ; HILLY AREAS ; CLIMATE VARIABILITY ; SPATIAL SCALE ; TRANSPORT ; BASIN ; RIVER ; DISCHARGE ; YIELD ; HYSTERESIS
WOS研究方向	Geology ; Agriculture ; Water Resources
语种	英语
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000452814300023
资助机构	National Key Scientific Research Project ; National Natural Science Foundation of China ; Special Funds for Scientific Research Programs of the State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/51367]
专题	中国科学院地理科学与资源研究所
通讯作者	Gao, Peng
作者单位	1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China 2.Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, Xinong Rd 26, Yangling 712100, Shaanxi, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
推荐引用方式 GB/T 7714	Hu, Jinfei,Gao, Peng,Mu, Xingmin,et al. Runoff-sediment dynamics under different flood patterns in a Loess Plateau catchment, China[J]. CATENA,2019,173:234-245.
APA	Hu, Jinfei.,Gao, Peng.,Mu, Xingmin.,Zhao, Guangju.,Sun, Wenyi.,...&Zhang, Limei.(2019).Runoff-sediment dynamics under different flood patterns in a Loess Plateau catchment, China.CATENA,173,234-245.
MLA	Hu, Jinfei,et al."Runoff-sediment dynamics under different flood patterns in a Loess Plateau catchment, China".CATENA 173(2019):234-245.