Spatiotemporal Variations of Reference Evapotranspiration and Its Determining Climatic Factors in the Taihang Mountains, China

Reference evapotranspiration (ETo) is an effective measure of atmospheric water demand of the land surface. In-depth investigations of the relationship between ETo and primary climatic factors can facilitate the adaptable agriculture and optimize water management, especially in the ecologically frag...

Descripción completa

Guardado en:

Detalles Bibliográficos
Autores principales:	Tingting Kang, Zeng Li, Yanchun Gao
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	reference evapotranspiration multiple breakpoints sensitivity analysis vertical gradients dominant climatic factor mountainous area Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/0b46699a01894a51a3104a25ff6243a1
Etiquetas:	Agregar Etiqueta Sin Etiquetas, Sea el primero en etiquetar este registro!

id	oai:doaj.org-article:0b46699a01894a51a3104a25ff6243a1
record_format	dspace
spelling	oai:doaj.org-article:0b46699a01894a51a3104a25ff6243a12021-11-11T19:58:31ZSpatiotemporal Variations of Reference Evapotranspiration and Its Determining Climatic Factors in the Taihang Mountains, China10.3390/w132131452073-4441https://doaj.org/article/0b46699a01894a51a3104a25ff6243a12021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/21/3145https://doaj.org/toc/2073-4441Reference evapotranspiration (ETo) is an effective measure of atmospheric water demand of the land surface. In-depth investigations of the relationship between ETo and primary climatic factors can facilitate the adaptable agriculture and optimize water management, especially in the ecologically fragile Taihang Mountains (THM). This work assessed the spatiotemporal dynamics of ETo and its driving climatic factors from 1973 to 2016 in THM. Results showed: (1) Annual ETo slightly increased during 1973–2016; relative humidity (RH) decreased more slowly, the temperature increased more rapidly, and wind speed (WS) decreased more rapidly at higher elevation than those at lower elevations; (2) two breakpoints occurred in ETo series at 1990 and 1997, and an “evaporation paradox” existed in 1973–1990; (3) ETo at higher elevations had greater sensitivity to changes in RH and lower sensitivity to changes in Tmax and WS. Sensitivity of ETo to minimum air temperature (Tmin) at middle elevations was lowest among three elevation bands; (4) RH and sunshine duration (SD) were the dominant climatic factors of ETo for most periods and stations. This study helps us understand the impact of climate change on ETo in mountainous areas and confirms reference evapotranspiration in high-elevation areas is particularly sensitive to climate change.Tingting KangZeng LiYanchun GaoMDPI AGarticlereference evapotranspirationmultiple breakpointssensitivity analysisvertical gradientsdominant climatic factormountainous areaHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3145, p 3145 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	reference evapotranspiration multiple breakpoints sensitivity analysis vertical gradients dominant climatic factor mountainous area Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	reference evapotranspiration multiple breakpoints sensitivity analysis vertical gradients dominant climatic factor mountainous area Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Tingting Kang Zeng Li Yanchun Gao Spatiotemporal Variations of Reference Evapotranspiration and Its Determining Climatic Factors in the Taihang Mountains, China
description	Reference evapotranspiration (ETo) is an effective measure of atmospheric water demand of the land surface. In-depth investigations of the relationship between ETo and primary climatic factors can facilitate the adaptable agriculture and optimize water management, especially in the ecologically fragile Taihang Mountains (THM). This work assessed the spatiotemporal dynamics of ETo and its driving climatic factors from 1973 to 2016 in THM. Results showed: (1) Annual ETo slightly increased during 1973–2016; relative humidity (RH) decreased more slowly, the temperature increased more rapidly, and wind speed (WS) decreased more rapidly at higher elevation than those at lower elevations; (2) two breakpoints occurred in ETo series at 1990 and 1997, and an “evaporation paradox” existed in 1973–1990; (3) ETo at higher elevations had greater sensitivity to changes in RH and lower sensitivity to changes in Tmax and WS. Sensitivity of ETo to minimum air temperature (Tmin) at middle elevations was lowest among three elevation bands; (4) RH and sunshine duration (SD) were the dominant climatic factors of ETo for most periods and stations. This study helps us understand the impact of climate change on ETo in mountainous areas and confirms reference evapotranspiration in high-elevation areas is particularly sensitive to climate change.
format	article
author	Tingting Kang Zeng Li Yanchun Gao
author_facet	Tingting Kang Zeng Li Yanchun Gao
author_sort	Tingting Kang
title	Spatiotemporal Variations of Reference Evapotranspiration and Its Determining Climatic Factors in the Taihang Mountains, China
title_short	Spatiotemporal Variations of Reference Evapotranspiration and Its Determining Climatic Factors in the Taihang Mountains, China
title_full	Spatiotemporal Variations of Reference Evapotranspiration and Its Determining Climatic Factors in the Taihang Mountains, China
title_fullStr	Spatiotemporal Variations of Reference Evapotranspiration and Its Determining Climatic Factors in the Taihang Mountains, China
title_full_unstemmed	Spatiotemporal Variations of Reference Evapotranspiration and Its Determining Climatic Factors in the Taihang Mountains, China
title_sort	spatiotemporal variations of reference evapotranspiration and its determining climatic factors in the taihang mountains, china
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/0b46699a01894a51a3104a25ff6243a1
work_keys_str_mv	AT tingtingkang spatiotemporalvariationsofreferenceevapotranspirationanditsdeterminingclimaticfactorsinthetaihangmountainschina AT zengli spatiotemporalvariationsofreferenceevapotranspirationanditsdeterminingclimaticfactorsinthetaihangmountainschina AT yanchungao spatiotemporalvariationsofreferenceevapotranspirationanditsdeterminingclimaticfactorsinthetaihangmountainschina
_version_	1718431330719498240

Spatiotemporal Variations of Reference Evapotranspiration and Its Determining Climatic Factors in the Taihang Mountains, China

Ejemplares similares