Contribution of remote sensing in analysis of crop water stress. Case study on durum wheat

Jolivot Audrey, Labbé Sylvain, Lebourgeois Valentine. 2012. Contribution of remote sensing in analysis of crop water stress. Case study on durum wheat. In : The use of remote sensing and geographic information systems for irrigation management in Southwest Europe. M. Erena, A. López-Francos, S. Montesinos, J-F. Berthoumieu. Zaragoza : CIHEAM, 209-216. (Options Méditerranéennes, Series B: Studies and Research, 67) ISBN 2-85352-482-5

Résumé : Precision irrigation requires frequent information on crop conditions spatial and temporal variability. Image-based remote sensing is one promising techniques for precision irrigation management. In this study, we investigated the use of broad band multispectral (visible, near infrared and thermal infrared bands) and thermal airborne imagery for the characterization of water status of durum wheat crop through two indices: the Water Deficit Index (WDI) and the Simplified Surface Energy Balance Index (S-SEBI). Compari - sons between these two indices and the ratio between actual and potential evapotranspiration (AET/PET) show that such techniques are promising for precision irrigation management.

Mots-clés Agrovoc : Triticum durum, irrigation, conservation de l'eau, imagerie, télédétection, stress dû à la sécheresse, déficit d'humidité du sol, rayonnement infrarouge, rayonnement thermique, température de l'air, évapotranspiration, indice de surface foliaire, bilan énergétique, bilan hydrique, technique de prévision

Mots-clés géographiques Agrovoc : Languedoc-Roussillon, France

Classification Agris : U30 - Méthodes de recherche
F06 - Irrigation
F60 - Physiologie et biochimie végétale
H50 - Troubles divers des plantes
P33 - Chimie et physique du sol

Champ stratégique Cirad : Axe 1 (2005-2013) - Intensification écologique

Auteurs et affiliations

• Jolivot Audrey, CIRAD-ES-UMR TETIS (FRA)
• Labbé Sylvain, IRSTEA (FRA)
• Lebourgeois Valentine, CIRAD-ES-UMR TETIS (FRA)

Source : Cirad - Agritrop (https://agritrop.cirad.fr/569067/)

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