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Inici > Recerca del GRAP > Oferta de tesis

Oferta de tesis

Open position for a PhD student in the Precision Agriculture irrigation research:

Topic: Advances in the characterization of vegetation biophysical parameters in orchards for the estimation of water requirements in precision irrigation (PRECIORCHARD).

Fellowship: Agreement between Universitat de Lleida (UdL) and IRTA (Ref.: CPI620).

Thematic research line:
In the framework of Precision Agriculture, the proposal deals with the characterization of spatio-temporal variability in orchard canopies applied to the accurate assessment of crop water requirements for precision irrigation purposes. The background is the biophysical relationship between tree transpiration and the amount of radiation intercepted by its canopy. Methodology approaches will include RGB, multispectral and thermal imaging from ground-based and aerial platforms (drone), complemented with 3D canopy modelling using active sensors (LiDAR).

Project Goals:

  • Assess the feasibility of photogrammetry, terrestrial LiDAR and radiative transfer models (RTM) for the practical assessment of fraction of intercepted Photosynthetically Active Radiation (fiPAR) in a variety of orchard configurations.
  • Benchmark, on a range of training systems, different methodological approaches for the estimation of Transpiration based on fiPAR.
  • Integrate the within-field maps of fiPAR, together with soil variability maps (e.g. from ECa sensors), in a geostatistical approach to delineate irrigation management zones and to identify the most representative spots within a field for point measurements (manual sampling and sensors).
  • Validate remotely sensed estimates of fiPAR with measurements from lysimeters and eddy-covariance, and to demonstrate the assimilation of those estimates into a decision support system.

Supervisors:
Dr. Jaume Casadesús (Efficient Use of Water program in Agriculture, IRTA) and Dr. Alexandre Escolà (Research Group on AgroICT and Precision Agriculture - GRAP, UdL-Agrotecnio).

Requirements:
Information on requirements, duration, remuneration and applications can be found here.

Deadline and timing:

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Darrera modificació: 30/09/2020
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