The ratio of transpiration to evapotranspiration in a rainfed maize field on the Loess Plateau of China

doi:10.2166/ws.2016.108

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	The ratio of transpiration to evapotranspiration in a rainfed maize field on the Loess Plateau of China
	Liu, Wenzhao 2,3; Zhou, Shanshan 1; Liu, WZ (reprint author), MWR, Yangling 712100, Shaanxi, Peoples R China.; Liu, WZ (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.; Lin, Wen 2,3
刊名	WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY
	2017
卷号	17 期号:1 页码:221-228
关键词	Calibration Evapotranspiration Sap Flow Method Sap Flow Rate Transpiration Rate
ISSN号	1606-9749
DOI	10.2166/ws.2016.108
文献子类	Article
英文摘要	Maize (Zea mays L.) is a major crop on the Loess Plateau, and calculating the ratio of transpiration to evapotranspiration (T/ET) of maize is important for estimating field water balance. In this study, the sap flow method was adopted to measure transpiration (T) characteristics of maize. In order to calibrate the sap flow gauge, the sap flow rate was compared to the leaf T determined by the weighing method. The sap flow value was measured per hour for 3 days and the mean of the hourly values for each day was taken as the daily value to avoid the influence of hydraulic capacitance. There was a significant linear relationship between leaf T and sap flow rate. The slope and intercept of linear regression were 0.764 and 4.944, with an R-2 of 0.97 (p < 0.01). We also analyzed the T and ET of maize under field conditions. The T/ET of maize was 63.3% from July to September 2012. The T/ET and leaf area index had a good linear relationship. Partitioning of ET into soil evaporation (E) and T may have important implications for analyzing crop water use efficiency, evaluating the crop production potential of precipitation and optimizing field water management.
学科主题	Engineering ; Environmental Sciences & Ecology ; Water Resources
URL标识	查看原文
出版地	LONDON
语种	英语
出版者	IWA PUBLISHING
WOS记录号	WOS:000394582100023
资助机构	National 863 Research Program of China [2013AA102904]; National Natural Science Foundation of China [41171033] ; National 863 Research Program of China [2013AA102904]; National Natural Science Foundation of China [41171033] ; National 863 Research Program of China [2013AA102904]; National Natural Science Foundation of China [41171033] ; National 863 Research Program of China [2013AA102904]; National Natural Science Foundation of China [41171033]
内容类型	期刊论文
源URL	[http://ir.iswc.ac.cn/handle/361005/8041]
专题	水保所科研产出--SCI_2017--SCI
通讯作者	Liu, WZ (reprint author), MWR, Yangling 712100, Shaanxi, Peoples R China.; Liu, WZ (reprint author), Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China.
作者单位	1.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China 2.MWR, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Soil & Water Conservat, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
推荐引用方式 GB/T 7714	Liu, Wenzhao,Zhou, Shanshan,Liu, WZ ,et al. The ratio of transpiration to evapotranspiration in a rainfed maize field on the Loess Plateau of China[J]. WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY,2017,17(1):221-228.
APA	Liu, Wenzhao,Zhou, Shanshan,Liu, WZ ,Liu, WZ ,&Lin, Wen.(2017).The ratio of transpiration to evapotranspiration in a rainfed maize field on the Loess Plateau of China.WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY,17(1),221-228.
MLA	Liu, Wenzhao,et al."The ratio of transpiration to evapotranspiration in a rainfed maize field on the Loess Plateau of China".WATER SCIENCE AND TECHNOLOGY-WATER SUPPLY 17.1(2017):221-228.