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Title: A test of the 'one-point method' for estimating maximum carboxylation capacity from field-measured, light-saturated photosynthesis

Here, simulations of photosynthesis by terrestrial biosphere models typically need a specification of the maximum carboxylation rate (Vcmax). Estimating this parameter using A–Ci curves (net photosynthesis, A, vs intercellular CO2 concentration, Ci) is laborious, which limits availability of Vcmax data. However, many multispecies field datasets include net photosynthetic rate at saturating irradiance and at ambient atmospheric CO2 concentration (Asat) measurements, from which Vcmax can be extracted using a ‘one-point method’.
;  [1] ;  [2] ;  [2] ;  [3] ;  [4] ;  [3] ;  [5] ;  [6] ;  [7] ;  [1] ;  [8] ;  [9] ;  [10] ;  [11] ;  [12] ;  [13] ;  [14] ;  [15] ;  [16]
  1. Brookhaven National Lab. (BNL), Upton, NY (United States)
  2. Macquarie Univ., Sydney, NSW (Australia)
  3. Western Sydney Univ., Penrith, NSW (Australia)
  4. Western Sydney Univ., Penrith, NSW (Australia); Univ. of Birmingham, Edgbaston (United Kingdom)
  5. Univ. du Quebec a Trois-Rivieres, Trois-Rivieres, QC (Canada)
  6. Macquarie Univ., Sydney, NSW (Australia); Imperial College London, Ascot (United Kingdom)
  7. The Australian National Univ., Canberra (Australia)
  8. Estonian Univ. of Life Sciences, Tartu (Estonia); Estonian Academy of Sciences, Tallinn (Estonia)
  9. Australian National Univ., Canberra (Australia); Univ. of Edinburgh, Edinburgh (United Kingdom)
  10. Univ. of Gothenburg, Gothenburg (Sweden)
  11. Macquarie Univ., Sydney, NSW (Australia); The Univ. of Sydney, Sydney, NSW (Australia)
  12. Swedish Univ. of Agricultural Sciences (SLU), Umea (Sweden)
  13. Australian National Univ., Canberra (Australia); Univ. of Peradeniya, Peradeniya (Sri Lanka)
  14. The Univ. of Sydney, Sydney, NSW (Australia)
  15. James Cook Univ., Cairns, Qld (Australia)
  16. Univ. de Sao Paulo, Sao Paulo (Brazil)
Publication Date:
Report Number(s):
Journal ID: ISSN 0028-646X; R&D Project: 2016-BNL-EE630EECA-Budg; KP1701000
Grant/Contract Number:
Accepted Manuscript
Journal Name:
New Phytologist
Additional Journal Information:
Journal Volume: 210; Journal Issue: 3; Journal ID: ISSN 0028-646X
Research Org:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org:
USDOE Office of Science (SC), Biological and Environmental Research (BER) (SC-23)
Country of Publication:
United States
54 ENVIRONMENTAL SCIENCES; Vcmax; photosynthesis; one-point method; Asat; A–Ci curve; Rday
OSTI Identifier: