干旱区生态环境知识资源中心(Arid): Impact of antecedent soil moisture on runoff from a semiarid catchment

Arid

DOI	10.1016/j.jhydrol.2018.12.025
	Impact of antecedent soil moisture on runoff from a semiarid catchment
	Schoener, Gerhard 1; Stone, Mark C.2
通讯作者	Schoener, Gerhard
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2019
卷号	569 页码:627-636
英文摘要	Antecedent soil moisture is an important factor in the generation of runoff, but guidance for modeling moisture conditions in semiarid catchments is limited and conflicting. In this study, the impact of antecedent moisture was assessed at the plot scale (2.8 m(2)) using a portable rainfall simulator, and at the catchment scale based on observed precipitation and discharge for a 2.8 km(2) watershed in central New Mexico. Performance of three loss models commonly used for hydrologic analysis in the southwestern U.S. was tested at both scales. High initial moisture content led to substantially higher runoff ratios at both scales, confirming the importance of antecedent soil moisture for runoff predictions in semiarid drainages. Hydrologic parameters estimated based on plot experiments, however, were highly variable and cannot easily be upscaled to the catchment scale. Loss model performance was clearly scale dependent more simplistic (one- and two parameter) loss methods out-performed a more complex (four parameter) model at the watershed scale, while the opposite held true for test plot simulations. At the catchment scale, all models performed poorly for small runoff events, but yielded acceptable results for storms causing large discharges if antecedent soil moisture was considered. Failing to account for antecedent moisture led to simulated runoff volume errors up to one order of magnitude.
英文关键词	Soil moisture Runoff Arid Scaling Curve number Green and Ampt
类型	Article
语种	英语
国家	USA
收录类别	SCI-E
WOS记录号	WOS:000457952900047
WOS关键词	INFILTRATION ; SCALE ; WATER ; VARIABILITY ; SIMULATION ; HILLSLOPE ; DESERT ; MODEL ; FLOW
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/217126
作者单位	1.Southern Sandoval Cty Arroyo Flood Control Author, 1041 Commercial Dr SE, Rio Rancho, NM 87124 USA; 2.Univ New Mexico, Dept Civil Construct & Environm Engn, Albuquerque, NM 87131 USA
推荐引用方式 GB/T 7714	Schoener, Gerhard,Stone, Mark C.. Impact of antecedent soil moisture on runoff from a semiarid catchment[J],2019,569:627-636.
APA	Schoener, Gerhard,&Stone, Mark C..(2019).Impact of antecedent soil moisture on runoff from a semiarid catchment.JOURNAL OF HYDROLOGY,569,627-636.
MLA	Schoener, Gerhard,et al."Impact of antecedent soil moisture on runoff from a semiarid catchment".JOURNAL OF HYDROLOGY 569(2019):627-636.