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Photochemical reflectance index as an indirect estimator of foliar isoprenoid emissions at the ecosystem level

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  • Josep Peñuelas

    (CSIC, Global Ecology Unit CREAF-CEAB-UAB, Cerdanyola del Vallés, Barcelona 08193, Catalonia, Spain
    CREAF, Cerdanyola del Vallés, Barcelona, 08193, Catalonia, Spain)

  • Giovanni Marino

    (CSIC, Global Ecology Unit CREAF-CEAB-UAB, Cerdanyola del Vallés, Barcelona 08193, Catalonia, Spain
    CREAF, Cerdanyola del Vallés, Barcelona, 08193, Catalonia, Spain
    Università degli Studi del Molise, Contrada Fonte Lappone, 86090 Pesche (IS), Italy
    Institute for Plant Protection, National Research Council)

  • Joan LLusia

    (CSIC, Global Ecology Unit CREAF-CEAB-UAB, Cerdanyola del Vallés, Barcelona 08193, Catalonia, Spain
    CREAF, Cerdanyola del Vallés, Barcelona, 08193, Catalonia, Spain)

  • Catherine Morfopoulos

    (CSIC, Global Ecology Unit CREAF-CEAB-UAB, Cerdanyola del Vallés, Barcelona 08193, Catalonia, Spain
    CREAF, Cerdanyola del Vallés, Barcelona, 08193, Catalonia, Spain
    Imperial College)

  • Gerard Farré-Armengol

    (CSIC, Global Ecology Unit CREAF-CEAB-UAB, Cerdanyola del Vallés, Barcelona 08193, Catalonia, Spain
    CREAF, Cerdanyola del Vallés, Barcelona, 08193, Catalonia, Spain)

  • Iolanda Filella

    (CSIC, Global Ecology Unit CREAF-CEAB-UAB, Cerdanyola del Vallés, Barcelona 08193, Catalonia, Spain
    CREAF, Cerdanyola del Vallés, Barcelona, 08193, Catalonia, Spain)

Abstract

Terrestrial plants re-emit around 1–2% of the carbon they fix as isoprene and monoterpenes. These emissions have major roles in the ecological relationships among living organisms and in atmospheric chemistry and climate, and yet their actual quantification at the ecosystem level in different regions is far from being resolved with available models and field measurements. Here we provide evidence that a simple remote sensing index, the photochemical reflectance index, which is indicative of light use efficiency, is a good indirect estimator of foliar isoprenoid emissions and can therefore be used to sense them remotely. These results open new perspectives for the potential use of remote sensing techniques to track isoprenoid emissions from vegetation at larger scales. On the other hand, our study shows the potential of this photochemical reflectance index technique to validate the availability of photosynthetic reducing power as a factor involved in isoprenoid production.

Suggested Citation

  • Josep Peñuelas & Giovanni Marino & Joan LLusia & Catherine Morfopoulos & Gerard Farré-Armengol & Iolanda Filella, 2013. "Photochemical reflectance index as an indirect estimator of foliar isoprenoid emissions at the ecosystem level," Nature Communications, Nature, vol. 4(1), pages 1-10, December.
    • Handle: RePEc:nat:natcom:v:4:y:2013:i:1:d:10.1038_ncomms3604
    DOI: 10.1038/ncomms3604
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    Cited by:

    1. Dmitriy V. Rusakov & Elena V. Kanash, 2022. "Spectral characteristics of leaves diffuse reflection in conditions of soil drought: a study of soft spring wheat cultivars of different drought resistance," Plant, Soil and Environment, Czech Academy of Agricultural Sciences, vol. 68(3), pages 137-145.

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