干旱区生态环境知识资源中心(Arid): Assessment of the modified two-source energy balance (TSEB) model for estimating evapotranspiration and its components over an irrigated olive orchard in Morocco

Arid

DOI	10.1016/j.agwat.2024.108861
	Assessment of the modified two-source energy balance (TSEB) model for estimating evapotranspiration and its components over an irrigated olive orchard in Morocco
	Sara, Ourrai; Bouchra, Aithssaine; Abdelhakim, Amazirh; Salah, Er-RAK, I; Lhoussaine, Bouchaou; Frederic, Jacob; Abdelghani, Chehbouni
通讯作者	Sara, O
来源期刊	AGRICULTURAL WATER MANAGEMENT
ISSN	0378-3774
EISSN	1873-2283
出版年	2024
卷号	298
英文摘要	Olives constitute a frequently grown crop in semi -arid areas. Therefore, accurate quantification of evapotranspiration (ET) within olive groves is crucial to enhance agricultural water productivity and promote their resilience to water scarcity and future climate scenarios. In the present work, we assessed the accuracy of 3 versions of the Two -Source -Energy -Balance (TSEB) model, the first one TSEB-SPT using a standard Priestley -Taylor coefficient (alpha PT) to estimate the transpiration, the second one called TSEB-CPT constrained by a computed alpha PT using measured ET along with the equilibrium term, and the third one TSEB-SM where soil moisture is used as an additional constraint to improve the soil evaporation. The 3 models were applied over an irrigated olive orchard in the Tensift basin (Morocco) during two growing periods of 2003 and 2004. The comparison with ground -based flux measurements from Eddy -Covariance tower and sap flow data revealed that the TSEB-SPT model overestimates ET with an average relative error of 87% and a percentage bias of -78% during the two growing seasons. Conversely, TSEB-SM and TSEB-CPT improved ET estimates as compared to TSEB-SPT, with mean relative errors of 31% and 24% and an average percentage bias of 0.6% and -7.4%, respectively. For ET partitioning, TSEB-SM appears to be less effective in estimating transpiration, while the simulated transpiration by TSEB-CPT fits well the actual one with a root mean square error of 0.27 mm, mainly during the summer of 2003. These results open a path for future improvements: by reviewing the calibration procedure of alpha PT, and implementing alternative formulas to compute the evaporation, the TSEB-SM could be potentially a robust tool for monitoring the seasonal variation of ET and its partitioning over a heterogeneous canopy cover.
英文关键词	Evapotranspiration Priestley-Taylor coefficient Trees ET partitioning Arid zones
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:001241387400001
WOS关键词	RADIOMETRIC SURFACE-TEMPERATURE ; EDDY COVARIANCE MEASUREMENTS ; PRIESTLEY-TAYLOR APPROACH ; THERMAL INFRARED DATA ; WATER-USE EFFICIENCY ; HEAT-FLUX ; SAP-FLOW ; CROP EVAPOTRANSPIRATION ; MEDITERRANEAN DRYLANDS ; SOIL
WOS类目	Agronomy ; Water Resources
WOS研究方向	Agriculture ; Water Resources
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/402667
推荐引用方式 GB/T 7714	Sara, Ourrai,Bouchra, Aithssaine,Abdelhakim, Amazirh,et al. Assessment of the modified two-source energy balance (TSEB) model for estimating evapotranspiration and its components over an irrigated olive orchard in Morocco[J],2024,298.
APA	Sara, Ourrai.,Bouchra, Aithssaine.,Abdelhakim, Amazirh.,Salah, Er-RAK, I.,Lhoussaine, Bouchaou.,...&Abdelghani, Chehbouni.(2024).Assessment of the modified two-source energy balance (TSEB) model for estimating evapotranspiration and its components over an irrigated olive orchard in Morocco.AGRICULTURAL WATER MANAGEMENT,298.
MLA	Sara, Ourrai,et al."Assessment of the modified two-source energy balance (TSEB) model for estimating evapotranspiration and its components over an irrigated olive orchard in Morocco".AGRICULTURAL WATER MANAGEMENT 298(2024).