干旱区生态环境知识资源中心(Arid): The effect of storm movement on infiltration, runoff and soil erosion in a semi-arid catchment

Arid

DOI	10.1002/hyp.13897
	The effect of storm movement on infiltration, runoff and soil erosion in a semi-arid catchment
	Ran, Qihua; Wang, Feng; Gao, Jihui
通讯作者	Gao, JH
来源期刊	HYDROLOGICAL PROCESSES
ISSN	0885-6087
EISSN	1099-1085
出版年	2020
卷号	34 期号:23 页码:4526-4540
英文摘要	Rainfall characteristics are key factors influencing infiltration and runoff generation in catchment hydrology, particularly for arid and semiarid catchments. Although the effect of storm movement on rainfall-runoff processes has been evaluated and emphasized since the 1960s, the effect on the infiltration process has barely been considered. In this study, a physically based distributed hydrological model (InHM) was applied to a typical semi-arid catchment (Shejiagou, 4.26 km(2)) located in the Loess Plateau, China, to investigate the effect of storm movement on infiltration, runoff and soil erosion at the catchment scale. Simulations of 84 scenarios of storm movement were conducted, including storms moving across the catchment in both the upstream and downstream directions along the main channel, while in each direction considering four storm moving speeds, three rainfall depths and two storm ranges. The simulation results showed that, on both the hillslopes facing downstream (facing south) and in the main channel, the duration of the overland flow process under the upstream-moving storms was longer than that under the downstream-moving storms. Thus, the duration and volume of infiltration under upstream-moving storms were larger in these areas. For the Shejiagou catchment, as there are more hillslopes facing downstream, more infiltration occurred under the upstream-moving storms than the downstream-moving storms. Therefore, downstream-moving storms generated up to 69% larger total runoff and up to 351% more soil loss in the catchment than upstream-moving storms. The difference in infiltration between the storms moving upstream and downstream decreased as the storm moving speed increased. The relative difference in total runoff and sediment yield between the storms moving upstream and downstream decreased with increasing rainfall depth and storm speed. The results of this study revealed that the infiltration differences under moving storms largely influenced the total runoff and sediment yield at the catchment scale, which is of importance in runoff prediction and flood management. The infiltration differences may be a potential factor leading to different groundwater, vegetation cover and ecology conditions for the different sides of the hillslopes.
英文关键词	hydrological modelling infiltration InHM overland flow soil erosion storm movement
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000568616400001
WOS关键词	HYDROLOGIC-RESPONSE ; SURFACE RUNOFF ; RAINFALL SIMULATION ; SEDIMENT TRANSPORT ; MOVING RAINSTORMS ; HILLY AREA ; MOISTURE ; SCALE ; FLOW ; VARIABILITY
WOS类目	Water Resources
WOS研究方向	Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/326203
作者单位	[Ran, Qihua; Wang, Feng; Gao, Jihui] Zhejiang Univ, Inst Hydrol & Water Resources, Hangzhou, Peoples R China; [Wang, Feng] Changan Univ, Sch Water & Environm, Xian, Peoples R China; [Gao, Jihui] Sichuan Univ, State Key Lab Hydraul & Mt River Engn, 24 South Sect 1,Yihuan Rd, Chengdu 610065, Peoples R China; [Gao, Jihui] Sichuan Univ, Sch Water Resource & Hydropower, Chengdu, Peoples R China
推荐引用方式 GB/T 7714	Ran, Qihua,Wang, Feng,Gao, Jihui. The effect of storm movement on infiltration, runoff and soil erosion in a semi-arid catchment[J],2020,34(23):4526-4540.
APA	Ran, Qihua,Wang, Feng,&Gao, Jihui.(2020).The effect of storm movement on infiltration, runoff and soil erosion in a semi-arid catchment.HYDROLOGICAL PROCESSES,34(23),4526-4540.
MLA	Ran, Qihua,et al."The effect of storm movement on infiltration, runoff and soil erosion in a semi-arid catchment".HYDROLOGICAL PROCESSES 34.23(2020):4526-4540.