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Title: Sun-Induced Chlorophyll Fluorescence, Photosynthesis, and Light Use Efficiency of a Soybean Field from Seasonally Continuous Measurements

Abstract

Recent development of sun-induced chlorophyll fluorescence (SIF) technology is stimulating studies to remotely approximate canopy photosynthesis (measured as gross primary production, GPP). While multiple applications have advanced the empirical relationship between GPP and SIF, mechanistic understanding of this relationship is still limited. GPP:SIF relationship, using the standard light use efficiency framework, is determined by absorbed photosynthetically active radiation (APAR) and the relationship between photosynthetic light use efficiency (LUE) and fluorescence yield (SIF y). While previous studies have found that APAR is the dominant factor of the GPP:SIF relationship, the LUE:SIF y relationship remains unclear. For a better understanding of the LUE:SIF y relationship, in this paper we deployed a ground-based system (FluoSpec2), with an eddy-covariance flux tower at a soybean field in the Midwestern U.S. during the 2016 growing season to collect SIF and GPP data simultaneously. With the measurements categorized by plant growth stages, light conditions, and time scales, we confirmed that a strong positive GPP:SIF relationship was dominated by an even stronger linear SIF:APAR relationship. By normalizing both GPP and SIF by APAR, we found that under sunny conditions our soybean field exhibited a clear positive SIF y:APAR relationship and a weak negative LUE:SIF y relationship, opposite tomore » the positive LUE:SIF y relationship reported previously in other ecosystems. Our study provides a first continuous SIF record over multiple growth stages for agricultural systems and reveals a distinctive pattern related to the LUE:SIF y relationship compared with previous work. Finally, the observed positive relationship of SIF y:APAR at the soybean site provides new insights of the previous understanding on the SIF's physiological implications.« less

Authors:
ORCiD logo [1];  [2]; ORCiD logo [3];  [4];  [5]; ORCiD logo [6];  [7];  [8];  [8];  [9]; ORCiD logo [10];  [1];  [6]
  1. Univ. of Illinois, Urbana, IL (United States). Dept. of Natural Resources and Environmental Sciences
  2. Univ. of Illinois, Urbana, IL (United States). Dept. of Natural Resources and Environmental Sciences. National Center of Supercomputing Applications
  3. Univ. of Virginia, Charlottesville, VA (United States). Dept. of Environmental Sciences
  4. Univ. of Illinois, Urbana, IL (United States). Dept. of Plant Biology. Carl R. Woese Inst. for Genomic Biology; USDA ARS Global Change and Photosynthesis Research Unit, Urbana, IL (United States)
  5. Carnegie Inst. for Science, Stanford, CA (United States). Dept. of Global Ecology
  6. Univ. of Illinois, Urbana, IL (United States). Dept. of Plant Biology. Carl R. Woese Inst. for Genomic Biology. Inst. for Sustainability, Energy, and Environment
  7. Brookhaven National Lab. (BNL), Upton, NY (United States). Environmental and Climate Sciences Dept.
  8. Univ. of Illinois, Urbana, IL (United States). Dept. of Plant Biology. Carl R. Woese Inst. for Genomic Biology
  9. Univ. of Illinois, Urbana, IL (United States). Dept. of Geography and Geographic Information Science
  10. Univ. of Illinois, Urbana, IL (United States). National Center of Supercomputing Applications
Publication Date:
Research Org.:
Univ. of Illinois at Urbana-Champaign, IL (United States); Brookhaven National Lab. (BNL), Upton, NY (United States); Univ. of Illinois at Urbana-Champaign, Urbana, IL (United States)
Sponsoring Org.:
USDOE Advanced Research Projects Agency - Energy (ARPA-E); USDOE Office of Science (SC); National Aeronautic and Space Administration (NASA)
OSTI Identifier:
1425085
Alternate Identifier(s):
OSTI ID: 1467907
Report Number(s):
BNL-203265-2018-JAAM
Journal ID: ISSN 2169-8953
Grant/Contract Number:  
SC0012704; NNX16AI56G; 80NSSC17K0110; AR0000598
Resource Type:
Accepted Manuscript
Journal Name:
Journal of Geophysical Research. Biogeosciences
Additional Journal Information:
Journal Volume: 123; Journal Issue: 2; Journal ID: ISSN 2169-8953
Publisher:
American Geophysical Union
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; 58 GEOSCIENCES

Citation Formats

Miao, Guofang, Guan, Kaiyu, Yang, Xi, Bernacchi, Carl J., Berry, Joseph A., DeLucia, Evan H., Wu, Jin, Moore, Caitlin E., Meacham, Katherine, Cai, Yaping, Peng, Bin, Kimm, Hyungsuk, and Masters, Michael D. Sun-Induced Chlorophyll Fluorescence, Photosynthesis, and Light Use Efficiency of a Soybean Field from Seasonally Continuous Measurements. United States: N. p., 2018. Web. doi:10.1002/2017JG004180.
Miao, Guofang, Guan, Kaiyu, Yang, Xi, Bernacchi, Carl J., Berry, Joseph A., DeLucia, Evan H., Wu, Jin, Moore, Caitlin E., Meacham, Katherine, Cai, Yaping, Peng, Bin, Kimm, Hyungsuk, & Masters, Michael D. Sun-Induced Chlorophyll Fluorescence, Photosynthesis, and Light Use Efficiency of a Soybean Field from Seasonally Continuous Measurements. United States. doi:10.1002/2017JG004180.
Miao, Guofang, Guan, Kaiyu, Yang, Xi, Bernacchi, Carl J., Berry, Joseph A., DeLucia, Evan H., Wu, Jin, Moore, Caitlin E., Meacham, Katherine, Cai, Yaping, Peng, Bin, Kimm, Hyungsuk, and Masters, Michael D. Mon . "Sun-Induced Chlorophyll Fluorescence, Photosynthesis, and Light Use Efficiency of a Soybean Field from Seasonally Continuous Measurements". United States. doi:10.1002/2017JG004180. https://www.osti.gov/servlets/purl/1425085.
@article{osti_1425085,
title = {Sun-Induced Chlorophyll Fluorescence, Photosynthesis, and Light Use Efficiency of a Soybean Field from Seasonally Continuous Measurements},
author = {Miao, Guofang and Guan, Kaiyu and Yang, Xi and Bernacchi, Carl J. and Berry, Joseph A. and DeLucia, Evan H. and Wu, Jin and Moore, Caitlin E. and Meacham, Katherine and Cai, Yaping and Peng, Bin and Kimm, Hyungsuk and Masters, Michael D.},
abstractNote = {Recent development of sun-induced chlorophyll fluorescence (SIF) technology is stimulating studies to remotely approximate canopy photosynthesis (measured as gross primary production, GPP). While multiple applications have advanced the empirical relationship between GPP and SIF, mechanistic understanding of this relationship is still limited. GPP:SIF relationship, using the standard light use efficiency framework, is determined by absorbed photosynthetically active radiation (APAR) and the relationship between photosynthetic light use efficiency (LUE) and fluorescence yield (SIFy). While previous studies have found that APAR is the dominant factor of the GPP:SIF relationship, the LUE:SIFy relationship remains unclear. For a better understanding of the LUE:SIFy relationship, in this paper we deployed a ground-based system (FluoSpec2), with an eddy-covariance flux tower at a soybean field in the Midwestern U.S. during the 2016 growing season to collect SIF and GPP data simultaneously. With the measurements categorized by plant growth stages, light conditions, and time scales, we confirmed that a strong positive GPP:SIF relationship was dominated by an even stronger linear SIF:APAR relationship. By normalizing both GPP and SIF by APAR, we found that under sunny conditions our soybean field exhibited a clear positive SIFy:APAR relationship and a weak negative LUE:SIFy relationship, opposite to the positive LUE:SIFy relationship reported previously in other ecosystems. Our study provides a first continuous SIF record over multiple growth stages for agricultural systems and reveals a distinctive pattern related to the LUE:SIFy relationship compared with previous work. Finally, the observed positive relationship of SIFy:APAR at the soybean site provides new insights of the previous understanding on the SIF's physiological implications.},
doi = {10.1002/2017JG004180},
journal = {Journal of Geophysical Research. Biogeosciences},
number = 2,
volume = 123,
place = {United States},
year = {2018},
month = {1}
}

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Works referenced in this record:

Correction of flux measurements for density effects due to heat and water vapour transfer
journal, January 1980

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