RT Journal Article
T1 A New Low-Cost Device Based on Thermal Infrared Sensors for Olive Tree Canopy Temperature Measurement andWater Status Monitoring
A1 Noguera Manzano, Miguel
A1 Millán Prior, Borja
A1 Pérez Paredes, Juan José
A1 Ponce Real, Juan Manuel
A1 Aquino Martín, Arturo
A1 Andújar Márquez, José Manuel
AB In recent years, many olive orchards, which are a major crop in the Mediterranean basin, have been converted into intensive or super high-density hedgerow systems. This configuration ismore e cient in terms of yield per hectare, but at the same time the water requirements are higher than in traditional grove arrangements. Moreover, irrigation regulations have a high environmental (through water use optimization) impact and influence on crop quality and yield. The mapping of (spatio-temporal) variability with conventional water stress assessment methods is impractical due to time and labor constraints, which often involve staff training. To address this problem, this work presents the development of a new low-cost device based on a thermal infrared (IR) sensor for the measurement of olive tree canopy temperature and monitoring of water status. The performance of the developed device was compared to a commercial thermal camera. Furthermore, the proposed device was evaluated in a commercially managed olive orchard, where two different irrigation treatments were established: a full irrigation treatment (FI) and a regulated deficit irrigation (RDC), aimed at covering 100% and 50% of crop evapotranspiration (ETc), respectively. Predawn leaf water potential (YPD) and stomatal conductance (gs), two widely accepted indicators for crop water status, were regressed to the measured canopy temperature. The results were promising, reaching a coeffcient of determination R2 > 0.80. On the other hand, the crop water stress index (CWSI) was also calculated, resulting in a coeffcient of determination R2 > 0.79. The outcomes provided by the developed device support its suitability for fast, low-cost, and reliable estimation of an olive orchard’s water status, even suppressing the need for supervised acquisition of reference temperatures.The newly developed device can be used for water management, reducing water usage, and foroverall improvements to olive orchard management.
PB MDPI
SN 2072-4292
YR 2020
FD 2020
LK http://hdl.handle.net/10272/17537
UL http://hdl.handle.net/10272/17537
LA eng
NO Noguera, M., Millán, B., Pérez-Paredes, J. J., Ponce, J. M., Aquino, A., & Andújar, J. M. (2020). A New Low-Cost Device Based on Thermal Infrared Sensors for Olive Tree Canopy Temperature Measurement and Water Status Monitoring. Remote Sensing, 12(4), 723. https://doi.org/10.3390/rs12040723
NO The research and APC were funded by the Interreg Cooperation Program V-A SPAIN-PORTUGAL(POCTEP)  2014–2020  and  co-financed  with  ERDF  (European  Regional  Development  Fund),  grant  number0155_TECNOLIVO_6_E, within the scope of the TecnOlivo Project.  Dr.  Borja Millán is funded by the SpanishMinistry of Science, Innovation, and Universities through a Juan de la Cierva-Formación Grant (FJCI-2017-31824).The research and APC were funded by the Interreg Cooperation Program V-A SPAIN-PORTUGAL (POCTEP) 2014–2020 and co-financed with ERDF (European Regional Development Fund), grant number 0155_TECNOLIVO_6_E, within the scope of the TecnOlivo Project. Dr. Borja Millán is funded by the Spanish Ministry of Science, Innovation, and Universities through a Juan de la Cierva-Formación Grant (FJCI-2017-31824).
DS Repositorio Institucional de la Universidad de Huelva
RD 1 jun 2026