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Assessing a crop water stress index derived from aerial thermal imaging and infrared thermometry in super-high density olive orchards

Opened Access Assessing a crop water stress index derived from aerial thermal imaging and infrared thermometry in super-high density olive orchards

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Autor: Egea Cegarra, Gregorio
Padilla Díaz, Carmen M.
Martínez Guanter, Jorge
Fernández Luque, José Enrique
Pérez Ruiz, Manuel
Departamento: Universidad de Sevilla. Departamento de Ingeniería Aeroespacial y Mecánica de Fluidos
Fecha: 2017
Publicado en: Agricultural Water Management, 187, 210 p.-221 p..
Tipo de documento: Artículo
Resumen: Characterization of the spatio-temporal variability of tree water status is a prerequisite to conducting precise irrigation management in fruit tree orchards. This study assessed the suitability of a crop water stress index (CWSI) derived from high-resolution aerial thermal imagery for estimating tree water status variability in super high density (SHD) olive orchards. The experiment was conducted at a commercial SHD olive orchard near Seville (southwestern Spain), with drip irrigated trees under three irrigation treatments (four plots per treatment in a randomized block design): a full irrigation treatment to replace the crop water needs (ETc) and two regulated deficit irrigation treatments to replace ca. 45% of ETc. Meteorological variables, soil moisture content, leaf water potential, stem water potential and leaf gas exchange measurements were performed along the irrigation season. Infrared temperature sensors (IRTs) installed approximately 1 m above the canopies were used to deri...
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Cita: Egea Cegarra, G., Padilla Díaz, C.M., Martínez Guanter, J., Fernández Luque, J.E. y Pérez Ruiz, M. (2017). Assessing a crop water stress index derived from aerial thermal imaging and infrared thermometry in super-high density olive orchards. Agricultural Water Management, 187, 210 p.-221 p..
Tamaño: 3.000Mb
Formato: PDF

URI: https://hdl.handle.net/11441/74465

DOI: 10.1016/j.agwat.2017.03.030

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