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@ARTICLE{Damm:906463,
      author       = {Damm, A. and Cogliati, S. and Colombo, R. and Fritsche, L.
                      and Genangeli, A. and Genesio, L. and Hanus, J. and
                      Peressotti, A. and Rademske, P. and Rascher, U. and
                      Schuettemeyer, D. and Siegmann, B. and Sturm, J. and
                      Miglietta, F.},
      title        = {{R}esponse times of remote sensing measured sun-induced
                      chlorophyll fluorescence, surface temperature and vegetation
                      indices to evolving soil water limitation in a crop canopy},
      journal      = {Remote sensing of environment},
      volume       = {273},
      issn         = {0034-4257},
      address      = {Amsterdam [u.a.]},
      publisher    = {Elsevier Science},
      reportid     = {FZJ-2022-01466},
      pages        = {112957 -},
      year         = {2022},
      abstract     = {Vegetation responds at varying temporal scales to changing
                      soil water availability. These process dynamics complicate
                      assessments of plant-water relations but also offer various
                      access points to advance understanding of vegetation
                      responses to environmental change. Remote sensing (RS)
                      provides large capacity to quantify sensitive and robust
                      information of vegetation responses and underlying abiotic
                      change driver across observational scales. Retrieved RS
                      based vegetation parameters are often sensitive to various
                      environmental and plant specific factors in addition to the
                      targeted plant response. Further, individual plant responses
                      to water limitation act at different temporal and spatial
                      scales, while RS sampling schemes are often not optimized to
                      assess these dynamics. The combination of these aspects
                      complicates the interpretation of RS parameter when
                      assessing plant-water relations. We consequently aim to
                      advance insight on the sensitivity of physiological,
                      biochemical and structural RS parameter for plant adaptation
                      in response to emerging soil water limitation. We made a
                      field experiment in maize in Tuscany (Central Italy), while
                      irrigation was stopped in some areas of the drip-irrigated
                      field. Within a period of two weeks, we measured the
                      hydraulic and physiological state of maize plants in situ
                      and complemented these detailed measurements with extensive
                      airborne observations (e.g. sun-induced chlorophyll
                      fluorescence (SIF), vegetation indices sensitive for
                      photosynthesis, pigment and water content, land surface
                      temperature). We observe a double response of far-red SIF
                      with a short-term increase after manifestation of soil water
                      limitation and a decrease afterwards. We identify different
                      response times of RS parameter representing different plant
                      adaptation mechanisms ranging from short term responses
                      (e.g. stomatal conductance, photosynthesis) to medium term
                      changes (e.g. pigment decomposition, changing leaf water
                      content). Our study demonstrates complementarity of common
                      and new RS parameter to mechanistically assess the complex
                      cascade of functional, biochemical and structural plant
                      responses to evolving soil water limitation.},
      cin          = {IBG-2},
      ddc          = {550},
      cid          = {I:(DE-Juel1)IBG-2-20101118},
      pnm          = {2173 - Agro-biogeosystems: controls, feedbacks and impact
                      (POF4-217)},
      pid          = {G:(DE-HGF)POF4-2173},
      typ          = {PUB:(DE-HGF)16},
      UT           = {WOS:000774322700002},
      doi          = {10.1016/j.rse.2022.112957},
      url          = {https://juser.fz-juelich.de/record/906463},
}