FN Archimer Export Format
PT J
TI Can light‐saturated photosynthesis in lowland tropical forests be estimated by one light level?
BT 
AF Verryckt, Lore T.
   Ellsworth, David S.
   Vicca, Sara
   Van Langenhove, Leandro
   Peñuelas, Josep
   Ciais, Philippe
   Posada, Juan M.
   Stahl, Clément
   Coste, Sabrina
   Courtois, Elodie A.
   Obersteiner, Michael
   Chave, Jérôme
   Janssens, Ivan A.
AS 1:1;2:2;3:1;4:1;5:3,4;6:5;7:6;8:7;9:8;10:9;11:10;12:11;13:1;
FF 1:;2:;3:;4:;5:;6:;7:;8:;9:;10:;11:;12:;13:;
C1 Department of Biology University of Antwerp Wilrijk, Belgium
   Hawkesbury Institute for the Environment Western Sydney University Penrith NSW ,Australia
   CREAF Barcelona, Spain
   CSIC Global Ecology CREAF‐CSIC‐UAB Barcelona, Spain
   Laboratoire des Sciences du Climat et de l’Environnement CEA‐CNRS‐UVSQ Gif‐sur‐Yvette ,France
   Biology Department Faculty of Natural Sciences Universidad del Rosario Bogotá, D.C. ,Colombia
   INRA UMR Ecofog AgroParisTech CNRS Cirad Université des AntillesUniversité de Guyane Kourou ,France
   UMR Ecofog AgroParisTech CNRS Cirad INRA Université de Guyane Université des Antilles Kourou, France
   Laboratoire Ecologie, évolution, interactions des systèmes amazoniens (LEEISA) CNRS IFREMER Université de Guyane Cayenne, French Guiana
   International Institute for Applied Systems Analysis (IIASA) Laxenburg, Austria
   UMR 5174 Laboratoire Evolution et Diversité Biologique CNRS Université Paul Sabatier ,Toulouse France
C2 UNIV ANTWERP, BELGIUM
   UNIV SYDNEY, AUSTRALIA
   CREAF BARCELONA, SPAIN
   CSIC, SPAIN
   CNRS, FRANCE
   UNIV ROSARIO BOGOTA, COLOMBIA
   INRA, FRANCE
   UNIV ANTILLES GUYANE, FRANCE
   CNRS, FRANCE
   IIASA, AUSTRIA
   CNRS, FRANCE
UM LEEISA
IN WOS Cotutelle UMR
   copubli-france
   copubli-europe
   copubli-univ-france
   copubli-int-hors-europe
   copubli-sud
IF 2.508
TC 1
UR https://archimer.ifremer.fr/doc/00634/74572/74566.pdf
LA English
DT Article
AB Leaf‐level net photosynthesis (A n) estimates and associated photosynthetic parameters are crucial for accurately parameterizing photosynthesis models. For tropical forests, such data are poorly available and collected at variable light conditions. To avoid over‐ or underestimation of modeled photosynthesis, it is critical to know at which photosynthetic photon flux density (PPFD) photosynthesis becomes light‐saturated. We studied the dependence of A n on PPFD in two tropical forests in French Guiana. We estimated the light saturation range, including the lowest PPFD level at which A sat (A n at light saturation) is reached, as well as the PPFD range at which A sat remained unaltered. The light saturation range was derived from photosynthetic light‐response curves, and within‐canopy and interspecific differences were studied. We observed wide light saturation ranges of A n. Light saturation ranges differed among canopy heights, but a PPFD level of 1,000 µmol m−2 s−1 was common across all heights, except for pioneer trees species that did not reach light saturation below 2,000 µmol m−2 s−1. A light intensity of 1,000 µmol m−2 s−1 sufficed for measuring A sat of climax species at our study sites, independent of the species or the canopy height. Because of the wide light saturation ranges, results from studies measuring A sat at higher PPFD levels (for upper canopy leaves up to 1,600 µmol m−2 s−1) are comparable with studies measuring at 1,000 µmol m−2 s−1. 
PY 2020
PD NOV
SO Biotropica
SN 0006-3606
PU Wiley
VL 52
IS 6
UT 000539933600001
BP 1183
EP 1193
DI 10.1111/btp.12817
ID 74572
ER

EF