A Dual-Source Energy Balance Model Coupled with Jarvis Canopy Resistance for Estimating Surface Evapotranspiration in Arid and Semi-Arid Regions
Soil moisture is one of the main factors influencing evapotranspiration (ET) under soil water stress conditions. The TSEB<sub>SM</sub> model used soil moisture to constrain soil evaporation. However, the transpiration schemes constrained by soil moisture require greater physical realism...
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2024-12-01
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| author | Qiutong Zhang Jinling Kong Lizheng Wang Xixuan Wang Zaiyong Zhang Yizhu Jiang Yanling Zhong |
| author_facet | Qiutong Zhang Jinling Kong Lizheng Wang Xixuan Wang Zaiyong Zhang Yizhu Jiang Yanling Zhong |
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| description | Soil moisture is one of the main factors influencing evapotranspiration (ET) under soil water stress conditions. The TSEB<sub>SM</sub> model used soil moisture to constrain soil evaporation. However, the transpiration schemes constrained by soil moisture require greater physical realism and the soil evaporation schemes parameters usually need calibration. In this study, the TSEB<sub>SM</sub> model was enhanced by incorporating Jarvis’s canopy resistance which considered the influence of soil moisture on transpiration schemes. We assessed the new model (TSEB<sub>SM+</sub>) in the Heihe and Haihe basins of China. The TSEB<sub>SM+</sub> model displayed a consistency to the TSEB in the ET estimation at the A’rou site, but approximately 30% and 35% reductions in RMSEs at the Huazhaizi and Huailai sites. It produced approximately 20% and 10% of the reductions in the ET RMSEs at the Huailai and A’rou sites compared to the TSEB<sub>SM</sub> model, but had a similar performance at the Huazhaizi site. Moreover, the TSEB<sub>SM+</sub> model estimated ET in the Heihe River Basin with an RMSE of 0.58 mm·day<sup>−1</sup>, and it was sensitive to the soil moisture, particularly when the soil moisture was below 30%. In conjunction to soil moisture, the TSEB<sub>SM+</sub> model could potentially be a more effective tool for monitoring the ET. |
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| language | English |
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| spelling | doaj-art-4f6a5e29998a4e80be7001cd9389f9da2025-08-20T02:53:27ZengMDPI AGAgriculture2077-04722024-12-011412236210.3390/agriculture14122362A Dual-Source Energy Balance Model Coupled with Jarvis Canopy Resistance for Estimating Surface Evapotranspiration in Arid and Semi-Arid RegionsQiutong Zhang0Jinling Kong1Lizheng Wang2Xixuan Wang3Zaiyong Zhang4Yizhu Jiang5Yanling Zhong6College of Geological Engineering and Geomatics, Chang’an University, Xi’an 710054, ChinaCollege of Geological Engineering and Geomatics, Chang’an University, Xi’an 710054, ChinaCollege of Geological Engineering and Geomatics, Chang’an University, Xi’an 710054, ChinaCollege of Geological Engineering and Geomatics, Chang’an University, Xi’an 710054, ChinaCollege of Water and Environment, Chang’an University, Xi’an 710054, ChinaCollege of Earth Sciences and Resources, Chang’an University, Xi’an 710054, ChinaCollege of Geological Engineering and Geomatics, Chang’an University, Xi’an 710054, ChinaSoil moisture is one of the main factors influencing evapotranspiration (ET) under soil water stress conditions. The TSEB<sub>SM</sub> model used soil moisture to constrain soil evaporation. However, the transpiration schemes constrained by soil moisture require greater physical realism and the soil evaporation schemes parameters usually need calibration. In this study, the TSEB<sub>SM</sub> model was enhanced by incorporating Jarvis’s canopy resistance which considered the influence of soil moisture on transpiration schemes. We assessed the new model (TSEB<sub>SM+</sub>) in the Heihe and Haihe basins of China. The TSEB<sub>SM+</sub> model displayed a consistency to the TSEB in the ET estimation at the A’rou site, but approximately 30% and 35% reductions in RMSEs at the Huazhaizi and Huailai sites. It produced approximately 20% and 10% of the reductions in the ET RMSEs at the Huailai and A’rou sites compared to the TSEB<sub>SM</sub> model, but had a similar performance at the Huazhaizi site. Moreover, the TSEB<sub>SM+</sub> model estimated ET in the Heihe River Basin with an RMSE of 0.58 mm·day<sup>−1</sup>, and it was sensitive to the soil moisture, particularly when the soil moisture was below 30%. In conjunction to soil moisture, the TSEB<sub>SM+</sub> model could potentially be a more effective tool for monitoring the ET.https://www.mdpi.com/2077-0472/14/12/2362evapotranspirationsoil water stressTSEBcanopy resistance |
| spellingShingle | Qiutong Zhang Jinling Kong Lizheng Wang Xixuan Wang Zaiyong Zhang Yizhu Jiang Yanling Zhong A Dual-Source Energy Balance Model Coupled with Jarvis Canopy Resistance for Estimating Surface Evapotranspiration in Arid and Semi-Arid Regions Agriculture evapotranspiration soil water stress TSEB canopy resistance |
| title | A Dual-Source Energy Balance Model Coupled with Jarvis Canopy Resistance for Estimating Surface Evapotranspiration in Arid and Semi-Arid Regions |
| title_full | A Dual-Source Energy Balance Model Coupled with Jarvis Canopy Resistance for Estimating Surface Evapotranspiration in Arid and Semi-Arid Regions |
| title_fullStr | A Dual-Source Energy Balance Model Coupled with Jarvis Canopy Resistance for Estimating Surface Evapotranspiration in Arid and Semi-Arid Regions |
| title_full_unstemmed | A Dual-Source Energy Balance Model Coupled with Jarvis Canopy Resistance for Estimating Surface Evapotranspiration in Arid and Semi-Arid Regions |
| title_short | A Dual-Source Energy Balance Model Coupled with Jarvis Canopy Resistance for Estimating Surface Evapotranspiration in Arid and Semi-Arid Regions |
| title_sort | dual source energy balance model coupled with jarvis canopy resistance for estimating surface evapotranspiration in arid and semi arid regions |
| topic | evapotranspiration soil water stress TSEB canopy resistance |
| url | https://www.mdpi.com/2077-0472/14/12/2362 |
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