High-resolution aerial thermal imagery for plant water status assessment in vineyards using a multicopter-RPAS

  1. J. Gago 1
  2. S. Martorell 1
  3. M. Tomás 1
  4. A. Pou 1
  5. B. Millán 2
  6. J. Ramón 1
  7. M. Ruiz 1
  8. R. Sánchez 1
  9. J. Galmés 1
  10. M.À. Conesa 1
  11. J. Cuxart 1
  12. J. Tardáguila 1
  13. M. Ribas-Carbó 1
  14. J. Flexas 1
  15. H. Medrano 1
  16. J.M. Escalona 1
  1. 1 Universitat de les Illes Balears
    info

    Universitat de les Illes Balears

    Palma, España

    ROR https://ror.org/03e10x626

  2. 2 Universidad de La Rioja
    info

    Universidad de La Rioja

    Logroño, España

    ROR https://ror.org/0553yr311

Book:
VII Congreso Ibérico de Agroingeniería y Ciencias Hortícolas: innovar y producir para el futuro. Libro de actas
  1. Ayuga Téllez, Francisco (coord.)
  2. Masaguer Rodríguez, Alberto (coord.)
  3. Mariscal Sancho, Ignacio (coord.)
  4. Villarroel Robinson, Morris (coord.)
  5. Ruiz-Altisent, Margarita (coord.)
  6. Riquelme Ballesteros, Fernando (coord.)
  7. Correa Hernando, Eva Cristina (coord.)

Publisher: Fundación General de la Universidad Politécnica de Madrid

ISBN: 84-695-9055-3,  978-84-695-9055-3

Year of publication: 2014

Pages: 157-162

Congress: Congreso Ibérico de Agroingeniería y Ciencias Hortícolas (7. 2013. Madrid)

Type: Conference paper

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Abstract

Climate change models predict that Mediterranean region, where the most important wine-producer countries worldwide are present, will experience increased frequency and severity of drought periods. Consequently, there is an increased requirement for improvement in the irrigation assessment of vineyards. It was described that grapevine water status can be determined as a function of stomatal conductance (gs), with values of this parameter below 100 mmol H20 m-2 s-1 indicating that grapevines are under drought. Stomatal conductance is a physiological parameter that can also be estimated remotely by correlation with canopy temperatures. Therefore, remote thermal sensing of gs can then be used to develop an irrigation scheduling based on physiological plant status of drought stress. Multicopter RPA (Remote Piloted Aircraft) combined with aerial thermographic imagery open a new opportunity for water stress detection in vineyards. High-resolution thermal images acquired from the multicopter were used to generate three different thermal indexes and three basic alternative methods developed from leaf energy balance equation to correlate with gs. The use of this technology for irrigation assessment in vineyards is discussed.

Data source: Dialnet