Field-scale monitoring of drought stress using chlorophyll fluorescence with the coupled SCOPE-AgroC model

De Canniere, Simon;Herbst, Michael;Rascher, Uwe;Vereecken, Harry;Jonard, François;et.al.
(2019) International Network on Remote Sensing of Terrestrial And Aquatic Fluorescence — Location: Davos, Switzerland (5.March.2019)

Files

Jonard_DeCanniere_FLEX2019.pdf
  • Open Access
  • Adobe PDF
  • 1.19 MB

Details

Authors
  • De Canniere, Simonorcid-logoUCLouvain
    Author
  • Herbst, MichaelResearch Centre Juelich, Germany
    Author
  • Rascher, UweResearch Centre Juelich, Germany
    Author
  • Vereecken, HarryResearch Centre Juelich, Germany
    Author
  • Author
  • Author
Show more
Abstract
Plant physiological link between drought stress and SIF emission  Drought stress is the combined effect of high VPD and low soil water potential  Stomata are closed, reducing sub stomatal CO2 concentrations  Drought stress slows down Calvin cycle but drought stress as such does not reduce light absorption  Fluorescence and NPQ provide alternative electron sinks Research questions 1. How does the SIF signal react to drought stress at different time horizons and stress levels? 2. How is the SIF emission related to plant processes? 3. Can we improve the estimations of transpiration and photosynthesis rates of crops under stress conditions by assimilating SIF observations into plant growth models?
Affiliations

Citations

De Canniere, S., Herbst, M., Rascher, U., Vereecken, H., Defourny, P., & Jonard, F. (2019). Field-scale monitoring of drought stress using chlorophyll fluorescence with the coupled SCOPE-AgroC model. International Network on Remote Sensing of Terrestrial And Aquatic Fluorescence, Davos, Switzerland. https://hdl.handle.net/2078.5/57854