Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985)

Van Diepen, K.H.H.; Goudriaan, J.; Vilà‐guerau De Arellano, J.; De Boer, H.J.

Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985)

The leaf photosynthesis models developed by Farquhar et al. (1980) (FvCB) and Goudriaan et al. (1985) (G85) are both used in Earth system and weather models to quantify ecosystem carbon assimilation. Despite their common role, a systematic comparison between these two photosynthesis models is currently lacking in scientific literature. In this technical report we compared the two models in a systematic way. Hereto we performed a comparative analysis of the model structures as well as the modeled responses of photosynthesis to light and CO2 at leaf level. To facilitate future model comparison, we also constructed a lookup table that presents FvCB model parameters fitted to CO2-response curves from G85 in a wide natural range in photosynthetic capacity at standardized temperature. The structure of the FvCB model differs fundamentally from the G85 model as the FvCB model considers rate-limiting processes due to Rubisco capacity, electron transport and triose phosphate utilization in parallel, whereas the G85 model considers Rubisco activity and triose phosphate utilization limitation to act in series scaled with quantum use efficiency. The models also differ fundamentally in terms of the parametrization of dark respiration. Still, both models calculate near-similar responses of photosynthesis to changes in light and CO2 across a wide range in photosynthetic capacity with only two free parameters each. Our work thereby highlights functional similarities between these model approaches despite fundamental differences in model structure. Hence, standardized parameter sets that yield similar photosynthesis responses to light and CO2 may facilitate intercomparison of Earth system and weather models.

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Main Authors:	Van Diepen, K.H.H., Goudriaan, J., Vilà‐guerau De Arellano, J., De Boer, H.J.
Format:	Article/Letter to editor biblioteca
Language:	English
Subjects:	Life Science,
Online Access:	https://research.wur.nl/en/publications/comparison-of-c3-photosynthetic-responses-to-light-and-co2-predic
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spelling	dig-wur-nl-wurpubs-6025322024-09-20 Van Diepen, K.H.H. Goudriaan, J. Vilà‐guerau De Arellano, J. De Boer, H.J. Article/Letter to editor Journal of Advances in Modeling Earth Systems 14 (2022) 9 ISSN: 1942-2466 Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985) 2022 The leaf photosynthesis models developed by Farquhar et al. (1980) (FvCB) and Goudriaan et al. (1985) (G85) are both used in Earth system and weather models to quantify ecosystem carbon assimilation. Despite their common role, a systematic comparison between these two photosynthesis models is currently lacking in scientific literature. In this technical report we compared the two models in a systematic way. Hereto we performed a comparative analysis of the model structures as well as the modeled responses of photosynthesis to light and CO2 at leaf level. To facilitate future model comparison, we also constructed a lookup table that presents FvCB model parameters fitted to CO2-response curves from G85 in a wide natural range in photosynthetic capacity at standardized temperature. The structure of the FvCB model differs fundamentally from the G85 model as the FvCB model considers rate-limiting processes due to Rubisco capacity, electron transport and triose phosphate utilization in parallel, whereas the G85 model considers Rubisco activity and triose phosphate utilization limitation to act in series scaled with quantum use efficiency. The models also differ fundamentally in terms of the parametrization of dark respiration. Still, both models calculate near-similar responses of photosynthesis to changes in light and CO2 across a wide range in photosynthetic capacity with only two free parameters each. Our work thereby highlights functional similarities between these model approaches despite fundamental differences in model structure. Hence, standardized parameter sets that yield similar photosynthesis responses to light and CO2 may facilitate intercomparison of Earth system and weather models. en application/pdf https://research.wur.nl/en/publications/comparison-of-c3-photosynthetic-responses-to-light-and-co2-predic 10.1029/2021MS002976 https://edepot.wur.nl/577780 Life Science https://creativecommons.org/licenses/by/4.0/ https://creativecommons.org/licenses/by/4.0/ Wageningen University & Research
institution	WUR NL
collection	DSpace
country	Países bajos
countrycode	NL
component	Bibliográfico
access	En linea
databasecode	dig-wur-nl
tag	biblioteca
region	Europa del Oeste
libraryname	WUR Library Netherlands
language	English
topic	Life Science Life Science
spellingShingle	Life Science Life Science Van Diepen, K.H.H. Goudriaan, J. Vilà‐guerau De Arellano, J. De Boer, H.J. Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985)
description	The leaf photosynthesis models developed by Farquhar et al. (1980) (FvCB) and Goudriaan et al. (1985) (G85) are both used in Earth system and weather models to quantify ecosystem carbon assimilation. Despite their common role, a systematic comparison between these two photosynthesis models is currently lacking in scientific literature. In this technical report we compared the two models in a systematic way. Hereto we performed a comparative analysis of the model structures as well as the modeled responses of photosynthesis to light and CO2 at leaf level. To facilitate future model comparison, we also constructed a lookup table that presents FvCB model parameters fitted to CO2-response curves from G85 in a wide natural range in photosynthetic capacity at standardized temperature. The structure of the FvCB model differs fundamentally from the G85 model as the FvCB model considers rate-limiting processes due to Rubisco capacity, electron transport and triose phosphate utilization in parallel, whereas the G85 model considers Rubisco activity and triose phosphate utilization limitation to act in series scaled with quantum use efficiency. The models also differ fundamentally in terms of the parametrization of dark respiration. Still, both models calculate near-similar responses of photosynthesis to changes in light and CO2 across a wide range in photosynthetic capacity with only two free parameters each. Our work thereby highlights functional similarities between these model approaches despite fundamental differences in model structure. Hence, standardized parameter sets that yield similar photosynthesis responses to light and CO2 may facilitate intercomparison of Earth system and weather models.
format	Article/Letter to editor
topic_facet	Life Science
author	Van Diepen, K.H.H. Goudriaan, J. Vilà‐guerau De Arellano, J. De Boer, H.J.
author_facet	Van Diepen, K.H.H. Goudriaan, J. Vilà‐guerau De Arellano, J. De Boer, H.J.
author_sort	Van Diepen, K.H.H.
title	Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985)
title_short	Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985)
title_full	Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985)
title_fullStr	Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985)
title_full_unstemmed	Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985)
title_sort	comparison of c3 photosynthetic responses to light and co2. predicted by the leaf photosynthesis models of farquhar et al. (1980) and goudriaan et al. (1985)
url	https://research.wur.nl/en/publications/comparison-of-c3-photosynthetic-responses-to-light-and-co2-predic
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Comparison of C3 Photosynthetic Responses to Light and CO2. Predicted by the Leaf Photosynthesis Models of Farquhar et al. (1980) and Goudriaan et al. (1985)

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