干旱区生态环境知识资源中心(Arid): Dependence of annual runoff coefficients on basin size and other properties in a climate transition zone from semi-humid to arid and semi-arid on the Loess Plateau, China

Arid

DOI	10.1016/j.jhydrol.2020.125727
	Dependence of annual runoff coefficients on basin size and other properties in a climate transition zone from semi-humid to arid and semi-arid on the Loess Plateau, China
	Yu, Yipeng; Yu, Pengtao; Wang, Yanhui; Tu, Xinwu; Zhang, Xiaoping; Zhang, Shulan; Xu, Lihong; Wang, Xiao; Liu, Zebin; Wang, Bin
通讯作者	Yu, PT (corresponding author), Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Key Lab Forest Ecol & Environm Natl Forestry, Beijing 100091, Peoples R China.
来源期刊	JOURNAL OF HYDROLOGY
ISSN	0022-1694
EISSN	1879-2707
出版年	2020
卷号	591
英文摘要	The dependence of the runoff coefficient (RC) on basin size has been recognized since decades as a big challenge. However, how such region-specific scale effect varies with basin properties still remains poorly understood. This seriously limits the ability of runoff prediction in ungauged watersheds with different environments and the integrated management of watershed under climate change and land use/cover change. In this study, the scaling relationships of annual RC and its variations with basin properties were quantified based on annual precipitation and runoff data series in twenty-five sub-basins belonging to two large basins on the Loess Plateau, Northwest China. The scaling behavior of RC was found to be significant, and the mean annual RC range significantly decreased as basin size increase. And this decrease of mean annual RC was faster in areas with thin loess cover than that in areas with thick loess cover. Area thresholds, beyond which the mean RC was no longer sensitive to basin size change, were observed for the scaling behavior of annual RC and it was approximately 10,000 km(2) in thick loess areas and 25,000 km(2) in thin loess areas. This indicated that the effects of basin properties on RC scaling behavior was related with scales. Soil thickness might be one of the key basin properties that determined the scaling behavior. An exponential regression equation (R-2 = 0.71, p < 0.01) was built for the annual runoff (R) according to the corresponding geomorphic area (a(n)) and annual precipitation (P) for basins with multiple geomorphic types (n). The results imply that the basin properties not only control the form of the scaling relationships of annual RC but also limit its variations under different geomorphic conditions. These findings may help us assess and manage water resources at the basin scale more accurately.
英文关键词	Runoff coefficient Scale dependence Basin The Loess Plateau
类型	Article
语种	英语
开放获取类型	hybrid
收录类别	SCI-E
WOS记录号	WOS:000599757800111
WOS关键词	CATCHMENT ; SCALE ; STREAMFLOW ; VARIABILITY ; EROSION
WOS类目	Engineering, Civil ; Geosciences, Multidisciplinary ; Water Resources
WOS研究方向	Engineering ; Geology ; Water Resources
来源机构	西北农林科技大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/369241
作者单位	[Yu, Yipeng; Yu, Pengtao; Wang, Yanhui; Xu, Lihong; Wang, Xiao; Liu, Zebin; Wang, Bin] Chinese Acad Forestry, Res Inst Forest Ecol Environm & Protect, Key Lab Forest Ecol & Environm Natl Forestry, Beijing 100091, Peoples R China; [Tu, Xinwu] Yellow River Conservancy Commiss Minist Water Res, Hydrol & Water Resources Bur Sanmenxia Reservoir, Sanmenxia 47200, Henan, Peoples R China; [Zhang, Xiaoping] Chinese Acad Sci & Minist Water Resources, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China; [Zhang, Xiaoping] Northwest Agr & Forestry Univ, Yangling 712100, Shaanxi, Peoples R China; [Zhang, Shulan] AuKang Univ, Coll Tourism Resources & Environm, Aukang 725000, Peoples R China
推荐引用方式 GB/T 7714	Yu, Yipeng,Yu, Pengtao,Wang, Yanhui,et al. Dependence of annual runoff coefficients on basin size and other properties in a climate transition zone from semi-humid to arid and semi-arid on the Loess Plateau, China[J]. 西北农林科技大学,2020,591.
APA	Yu, Yipeng.,Yu, Pengtao.,Wang, Yanhui.,Tu, Xinwu.,Zhang, Xiaoping.,...&Wang, Bin.(2020).Dependence of annual runoff coefficients on basin size and other properties in a climate transition zone from semi-humid to arid and semi-arid on the Loess Plateau, China.JOURNAL OF HYDROLOGY,591.
MLA	Yu, Yipeng,et al."Dependence of annual runoff coefficients on basin size and other properties in a climate transition zone from semi-humid to arid and semi-arid on the Loess Plateau, China".JOURNAL OF HYDROLOGY 591(2020).