% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Migliavacca:827674, author = {Migliavacca, Mirco and Perez-Priego, Oscar and Rossini, Micol and El-Madany, Tarek S. and Moreno, Gerardo and van der Tol, Christiaan and Rascher, Uwe and Berninger, Anna and Bessenbacher, Verena and Burkart, Andreas and Carrara, Arnaud and Fava, Francesco and Guan, Jin-Hong and Hammer, Tiana W. and Henkel, Kathrin and Juarez-Alcalde, Enrique and Julitta, Tommaso and Kolle, Olaf and Martín, M. Pilar and Musavi, Talie and Pacheco-Labrador, Javier and Pérez-Burgueño, Andrea and Wutzler, Thomas and Zaehle, Sönke and Reichstein, Markus}, title = {{P}lant functional traits and canopy structure control the relationship between photosynthetic {CO}$_{2}$ uptake and far-red sun-induced fluorescence in a {M}editerranean grassland under different nutrient availability}, journal = {The new phytologist}, volume = {214}, number = {3}, issn = {0028-646X}, address = {Oxford [u.a.]}, publisher = {Wiley-Blackwell}, reportid = {FZJ-2017-01788}, pages = {1078–1091}, year = {2017}, abstract = {Sun-induced fluorescence (SIF) in the far-red region provides a new noninvasive measurement approach that has the potential to quantify dynamic changes in light-use efficiency and gross primary production (GPP). However, the mechanistic link between GPP and SIF is not completely understood.We analyzed the structural and functional factors controlling the emission of SIF at 760 nm (F760) in a Mediterranean grassland manipulated with nutrient addition of nitrogen (N), phosphorous (P) or nitrogen–phosphorous (NP). Using the soil–canopy observation of photosynthesis and energy (SCOPE) model, we investigated how nutrient-induced changes in canopy structure (i.e. changes in plant forms abundance that influence leaf inclination distribution function, LIDF) and functional traits (e.g. N content in dry mass of leaves, $N\%,$ Chlorophyll a+b concentration (Cab) and maximum carboxylation capacity (Vcmax)) affected the observed linear relationship between F760 and GPP.We conclude that the addition of nutrients imposed a change in the abundance of different plant forms and biochemistry of the canopy that controls F760. Changes in canopy structure mainly control the GPP–F760 relationship, with a secondary effect of Cab and Vcmax.In order to exploit F760 data to model GPP at the global/regional scale, canopy structural variability, biodiversity and functional traits are important factors that have to be considered.}, cin = {IBG-2}, ddc = {580}, cid = {I:(DE-Juel1)IBG-2-20101118}, pnm = {582 - Plant Science (POF3-582)}, pid = {G:(DE-HGF)POF3-582}, typ = {PUB:(DE-HGF)16}, UT = {WOS:000402403900018}, pubmed = {pmid:28181244}, doi = {10.1111/nph.14437}, url = {https://juser.fz-juelich.de/record/827674}, }