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Title: Spatio-Temporal Convergence of Maximum Daily Light-Use Efficiency Based on Radiation Absorption by Canopy Chlorophyll

Journal Article · · Geophysical Research Letters
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [5];  [6]; ORCiD logo [7]; ORCiD logo [8];  [9]; ORCiD logo [10]; ORCiD logo [11]; ORCiD logo [12]; ORCiD logo [13];  [14]; ORCiD logo [15]
  1. Univ. of Oklahoma, Norman, OK (United States). Dept. of Microbiology and Plant Biology, Center for Spatial Analysis; Columbia Univ., New York, NY (United States). Dept. of Earth and Environmental Engineering
  2. Univ. of Oklahoma, Norman, OK (United States). Dept. of Microbiology and Plant Biology, Center for Spatial Analysis; Fudan Univ., Shanghai (China). Ministry of Education Key Lab. of Biodiversity Science and Ecological Engineering, Inst. of Biodiversity Science
  3. Eidgenössische Technische Hochschule (ETH) Zurich, Zurich (Switzerland). Dept. of Environmental Systems Science
  4. Brookhaven National Lab. (BNL), Upton, NY (United States). Biological, Environmental & Climate Sciences Dept.
  5. Univ. of Oklahoma, Norman, OK (United States). Dept. of Microbiology and Plant Biology, Center for Spatial Analysis
  6. Inst. of Biometeorology, National Research Council, Florence (Italy)
  7. Univ. Innsbruck (Austria). Inst. of Ecology
  8. European Commission, Ispra (Italy). Joint Research Centre
  9. Univ. of Twente, Enschede (Netherlands). Dept. of Water Resources
  10. Tsinghua Univ., Beijing (China). State Key Lab. of Hydroscience and Engineering, Dept. of Hydraulic Engineering
  11. Virginia Commonwealth Univ., Richmond, VA (United States). Dept. of Biology
  12. Columbia Univ., New York, NY (United States). Dept. of Earth and Environmental Engineering
  13. Nanjing Univ. (China). Jiangsu Center for Collaborative Innovation in Geographical Information Resource Development and Application, International Institute for Earth System Sciences
  14. Karlsruhe Inst. of Technology (KIT) (Germany). Dept. of Atmospheric Environmental Research, Inst. for Meteorology and Climate Research
  15. Lund Univ., Lund (Sweden). Physical Geography and Ecosystem Science

Light-use efficiency (LUE), which quantifies the plants’ efficiency in utilizing solar radiation for photosynthetic carbon fixation, is an important factor for gross primary production (GPP) estimation. Here we use satellite-based solar-induced chlorophyll fluorescence (SIF) as a proxy for photosynthetically active radiation absorbed by chlorophyll (APARchl) and derive an estimation of the fraction of APARchl (fPARchl) from four remotely-sensed vegetation indicators. By comparing maximum LUE estimated at different scales from 127 eddy flux sites, we found that the maximum daily LUE based on PAR absorption by canopy chlorophyll (ε$$chl\atop{max}$$), unlike other expressions of LUE, tends to converge across biome types. The photosynthetic seasonality in tropical forests can also be tracked by the change of fPARchl, suggesting the corresponding (ε$$chl\atop{max}$$}$$) to have less seasonal variation. Finally, this spatio-temporal convergence of LUE derived from fPARchl can be used to build simple but robust GPP models and to better constrain process-based models.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
National Science Foundation (NSF); USDOE Office of Science (SC), Biological and Environmental Research (BER); FLUXNET; Natural Environment Research Council (NERC) Earth Observation Data Centre (NEODC); European Space Agency (ESA); Airbus Defence and Space; National Aeronautics and Space Administration (NASA); GFZ German Research Centre for Geosciences; USDA National Inst. for Food and Agriculture (NIFA); National Natural Science Foundation of China (NSFC)
Grant/Contract Number:
AC02-05CH11231; SC0012704; 2013-69002-23146; 2016- 68002-24967; IIA-1301789; 80LARC17C0001; 41671421
OSTI ID:
1563952
Alternate ID(s):
OSTI ID: 1431443
Report Number(s):
BNL-203445-2018-JAAM; ark:/13030/qt4xr425x5; TRN: US2000789
Journal Information:
Geophysical Research Letters, Vol. 45, Issue 8; ISSN 0094-8276
Publisher:
American Geophysical UnionCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 46 works
Citation information provided by
Web of Science

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Cited By (6)

Improved estimates of global terrestrial photosynthesis using information on leaf chlorophyll content journal April 2019
Estimation of Terrestrial Global Gross Primary Production (GPP) with Satellite Data-Driven Models and Eddy Covariance Flux Data journal August 2018
Underestimates of Grassland Gross Primary Production in MODIS Standard Products journal November 2018
Diurnal and Seasonal Solar Induced Chlorophyll Fluorescence and Photosynthesis in a Boreal Scots Pine Canopy journal January 2019
A Global Sensitivity Analysis of Commonly Used Satellite-Derived Vegetation Indices for Homogeneous Canopies Based on Model Simulation and Random Forest Learning journal October 2019
A global spatially contiguous solar-induced fluorescence (CSIF) dataset using neural networks journal January 2018

Figures / Tables (4)