Carbon-phosphorus cycle models overestimate CO2 enrichment response in a mature Eucalyptus forest.

Jiang, M; Medlyn, BE; Wårlind, D; Knauer, J; Fleischer, K; Goll, DS; Olin, S; Yang, X; Yu, L; Zaehle, S; Zhang, H; Lv, H; Crous, KY; Carrillo, Y; Macdonald, C; Anderson, I; Boer, MM; Farrell, M; Gherlenda, A; Castañeda-Gómez, L; Hasegawa, S; Jarosch, K; Milham, P; Ochoa-Hueso, R; Pathare, V; Pihlblad, J; Nevado, JP; Powell, J; Power, SA; Reich, P; Riegler, M; Ellsworth, DS; Smith, B

Carbon-phosphorus cycle models overestimate CO2 enrichment response in a mature Eucalyptus forest.

Jiang, M Medlyn, BE Wårlind, D Knauer, J

Fleischer, K Goll, DS Olin, S Yang, X Yu, L Zaehle, S Zhang, H Lv, H Crous, KY Carrillo, Y Macdonald, C Anderson, I Boer, MM Farrell, M Gherlenda, A Castañeda-Gómez, L Hasegawa, S Jarosch, K Milham, P Ochoa-Hueso, R Pathare, V Pihlblad, J Nevado, JP Powell, J Power, SA Reich, P Riegler, M Ellsworth, DS Smith, B

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Publisher:: AMER ASSOC ADVANCEMENT SCIENCE
Publication Type:: Journal Article
Citation:: Sci Adv, 2024, 10, (27), pp. eadl5822
Issue Date:: 2024-07-05

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Field	Value	Language
dc.contributor.author	Jiang, M
dc.contributor.author	Medlyn, BE
dc.contributor.author	Wårlind, D
dc.contributor.author	Knauer, J https://orcid.org/0000-0002-4947-7067
dc.contributor.author	Fleischer, K
dc.contributor.author	Goll, DS
dc.contributor.author	Olin, S
dc.contributor.author	Yang, X
dc.contributor.author	Yu, L
dc.contributor.author	Zaehle, S
dc.contributor.author	Zhang, H
dc.contributor.author	Lv, H
dc.contributor.author	Crous, KY
dc.contributor.author	Carrillo, Y
dc.contributor.author	Macdonald, C
dc.contributor.author	Anderson, I
dc.contributor.author	Boer, MM
dc.contributor.author	Farrell, M
dc.contributor.author	Gherlenda, A
dc.contributor.author	Castañeda-Gómez, L
dc.contributor.author	Hasegawa, S
dc.contributor.author	Jarosch, K
dc.contributor.author	Milham, P
dc.contributor.author	Ochoa-Hueso, R
dc.contributor.author	Pathare, V
dc.contributor.author	Pihlblad, J
dc.contributor.author	Nevado, JP
dc.contributor.author	Powell, J
dc.contributor.author	Power, SA
dc.contributor.author	Reich, P
dc.contributor.author	Riegler, M
dc.contributor.author	Ellsworth, DS
dc.contributor.author	Smith, B
dc.date.accessioned	2025-01-13T03:52:47Z
dc.date.available	2025-01-13T03:52:47Z
dc.date.issued	2024-07-05
dc.identifier.citation	Sci Adv, 2024, 10, (27), pp. eadl5822
dc.identifier.issn	2375-2548
dc.identifier.issn	2375-2548
dc.identifier.uri	http://hdl.handle.net/10453/183367
dc.description.abstract	The importance of phosphorus (P) in regulating ecosystem responses to climate change has fostered P-cycle implementation in land surface models, but their CO2 effects predictions have not been evaluated against measurements. Here, we perform a data-driven model evaluation where simulations of eight widely used P-enabled models were confronted with observations from a long-term free-air CO2 enrichment experiment in a mature, P-limited Eucalyptus forest. We show that most models predicted the correct sign and magnitude of the CO2 effect on ecosystem carbon (C) sequestration, but they generally overestimated the effects on plant C uptake and growth. We identify leaf-to-canopy scaling of photosynthesis, plant tissue stoichiometry, plant belowground C allocation, and the subsequent consequences for plant-microbial interaction as key areas in which models of ecosystem C-P interaction can be improved. Together, this data-model intercomparison reveals data-driven insights into the performance and functionality of P-enabled models and adds to the existing evidence that the global CO2-driven carbon sink is overestimated by models.
dc.format	Print-Electronic
dc.language	eng
dc.publisher	AMER ASSOC ADVANCEMENT SCIENCE
dc.relation.ispartof	Sci Adv
dc.relation.isbasedon	10.1126/sciadv.adl5822
dc.rights	info:eu-repo/semantics/openAccess
dc.subject.mesh	Eucalyptus
dc.subject.mesh	Carbon Dioxide
dc.subject.mesh	Phosphorus
dc.subject.mesh	Forests
dc.subject.mesh	Carbon Cycle
dc.subject.mesh	Photosynthesis
dc.subject.mesh	Climate Change
dc.subject.mesh	Ecosystem
dc.subject.mesh	Carbon
dc.subject.mesh	Models, Theoretical
dc.subject.mesh	Carbon Sequestration
dc.subject.mesh	Eucalyptus
dc.subject.mesh	Carbon Dioxide
dc.subject.mesh	Carbon
dc.subject.mesh	Phosphorus
dc.subject.mesh	Ecosystem
dc.subject.mesh	Photosynthesis
dc.subject.mesh	Models, Theoretical
dc.subject.mesh	Climate Change
dc.subject.mesh	Carbon Cycle
dc.subject.mesh	Carbon Sequestration
dc.subject.mesh	Forests
dc.subject.mesh	Eucalyptus
dc.subject.mesh	Carbon Dioxide
dc.subject.mesh	Phosphorus
dc.subject.mesh	Forests
dc.subject.mesh	Carbon Cycle
dc.subject.mesh	Photosynthesis
dc.subject.mesh	Climate Change
dc.subject.mesh	Ecosystem
dc.subject.mesh	Carbon
dc.subject.mesh	Models, Theoretical
dc.subject.mesh	Carbon Sequestration
dc.title	Carbon-phosphorus cycle models overestimate CO2 enrichment response in a mature Eucalyptus forest.
dc.type	Journal Article
utslib.citation.volume	10
utslib.location.activity	United States
pubs.organisational-group	University of Technology Sydney
pubs.organisational-group	University of Technology Sydney/Faculty of Science
pubs.organisational-group	University of Technology Sydney/Faculty of Science/School of Life Sciences
utslib.copyright.status	open_access	*
dc.rights.license	This work is licensed under a Creative Commons Attribution 4.0 International License (CC BY 4.0). To view a copy of this license, visit https://creativecommons.org/licenses/by/4.0/
dc.date.updated	2025-01-13T03:52:45Z
pubs.issue	27
pubs.publication-status	Published
pubs.volume	10
utslib.citation.issue	27

Abstract:

The importance of phosphorus (P) in regulating ecosystem responses to climate change has fostered P-cycle implementation in land surface models, but their CO2 effects predictions have not been evaluated against measurements. Here, we perform a data-driven model evaluation where simulations of eight widely used P-enabled models were confronted with observations from a long-term free-air CO2 enrichment experiment in a mature, P-limited Eucalyptus forest. We show that most models predicted the correct sign and magnitude of the CO2 effect on ecosystem carbon (C) sequestration, but they generally overestimated the effects on plant C uptake and growth. We identify leaf-to-canopy scaling of photosynthesis, plant tissue stoichiometry, plant belowground C allocation, and the subsequent consequences for plant-microbial interaction as key areas in which models of ecosystem C-P interaction can be improved. Together, this data-model intercomparison reveals data-driven insights into the performance and functionality of P-enabled models and adds to the existing evidence that the global CO2-driven carbon sink is overestimated by models.

Please use this identifier to cite or link to this item:

http://hdl.handle.net/10453/183367