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Assessing Olive Evapotranspiration Partitioning from Soil Water Balance and Radiometric Soil and Canopy Temperatures

ICAAM-Instituto de Ciências Agrárias e Ambientais Mediterrânicas, Universidade de Évora, Núcleo da Mitra, Ap. 94, 7002-554 Évora, Portugal
Agronomy 2018, 8(4), 43; https://doi.org/10.3390/agronomy8040043
Received: 8 March 2018 / Revised: 3 April 2018 / Accepted: 5 April 2018 / Published: 6 April 2018
(This article belongs to the Special Issue Sensing and Automated Systems for Improved Crop Management)
Evapotranspiration (ETc) partitioning and obtaining of FAO56 dual crop coefficient (Kc) for olive was carried out with the SIMDualKc software application for root zone and topsoil soil water balance based on the dual crop coefficients. A simplified two source-energy balance model (STSEB), based on daily remotely sensed soil and canopy thermal infrared data and retrieval of surface fluxes, also provided information on partitioning ETc for the olive orchard. Both models were calibrated and validated with ground-based, sap flow-derived transpiration rates, and their performance was compared in partitioning ETc for incomplete cover, intensive olive grown in orchards (≤300 trees ha−1). The SIMDualKc proved adequate in partitioning ETc. The STSEB model underestimated ETc mostly by inadequately simulating soil evaporation and its contribution to the total latent heat flux. Such results suggest difficulties in using information from the STSEB algorithm for assessing ETc and dual Kc crop coefficients of intensive olive orchards with incomplete ground cover. View Full-Text
Keywords: evapotranspiration partitioning; soil water balance; energy balance; sap flow; intensive olive orchard; crop coefficients evapotranspiration partitioning; soil water balance; energy balance; sap flow; intensive olive orchard; crop coefficients
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MDPI and ACS Style

Santos, F.L. Assessing Olive Evapotranspiration Partitioning from Soil Water Balance and Radiometric Soil and Canopy Temperatures. Agronomy 2018, 8, 43. https://doi.org/10.3390/agronomy8040043

AMA Style

Santos FL. Assessing Olive Evapotranspiration Partitioning from Soil Water Balance and Radiometric Soil and Canopy Temperatures. Agronomy. 2018; 8(4):43. https://doi.org/10.3390/agronomy8040043

Chicago/Turabian Style

Santos, Francisco L. 2018. "Assessing Olive Evapotranspiration Partitioning from Soil Water Balance and Radiometric Soil and Canopy Temperatures" Agronomy 8, no. 4: 43. https://doi.org/10.3390/agronomy8040043

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