干旱区生态环境知识资源中心(Arid): Spatial variability and temporal stability of actual evapotranspiration on a hillslope of the Chinese Loess Plateau

Arid

	Spatial variability and temporal stability of actual evapotranspiration on a hillslope of the Chinese Loess Plateau
	Zhang Yongkun; Huang Mingbin
来源期刊	干旱区科学
ISSN	1674-6767
出版年	2021
卷号	13 期号:2
英文摘要	Actual evapotranspiration (ET_a) is a key component of water balance.This study aimed to investigate the spatial variability and time stability of ET_a along a hillslope and to analyze the key factors that control the spatiotemporal variability of ET_a.The potential evaporation,surface runoff and 0-480 cm soil water profile were measured along a 243 m long transect on a hillslope of the Loess Plateau during the normal (2015) and wet (2016) water years.ET_a was calculated using water balance equation.Results indicated that increasing precipitation during the wet water year did not alter the spatial pattern of ET_a along the hillslope;time stability analysis showed that a location with high time stability of ET_a could be used to estimate the mean ET_a of the hillslope.Time stability of ET_a was positively correlated with elevation (P<0.05),indicating that,on a hillslope in a semi-arid area,elevation was the primary factor influencing the time stability of ET_a.
英文关键词	relative difference water balance surface runoff soil texture semi-arid areas
类型	Article
语种	英语
收录类别	CSCD
WOS类目	Geology
CSCD记录号	CSCD:6921503
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/354267
推荐引用方式 GB/T 7714	Zhang Yongkun,Huang Mingbin. Spatial variability and temporal stability of actual evapotranspiration on a hillslope of the Chinese Loess Plateau[J],2021,13(2).
APA	Zhang Yongkun,&Huang Mingbin.(2021).Spatial variability and temporal stability of actual evapotranspiration on a hillslope of the Chinese Loess Plateau.干旱区科学,13(2).
MLA	Zhang Yongkun,et al."Spatial variability and temporal stability of actual evapotranspiration on a hillslope of the Chinese Loess Plateau".干旱区科学 13.2(2021).