RT journal article
T1 Carbon-phosphorus cycle models overestimate CO2 enrichment response in a mature Eucalyptus forest
A1 Jiang, M.
A1 Medlyn, B. E.
A1 Wårlind, D.
A1 Knauer, J.
A1 Fleischer, K.
A1 Goll, D. S.
A1 Olin, S.
A1 Yang, X.
A1 Yu, L.
A1 Zaehle, S.
A1 Zhang, H.
A1 Lv, H.
A1 Crous, K. Y.
A1 Carrillo, Y.
A1 Macdonald, C.
A1 Anderson, I.C.
A1 Boer, M.M.
A1 Farrell, M.
A1 Gherlenda, A.N.
A1 Castañeda-Gómez, L.
A1 Hasegawa, S.
A1 Jarosch, K.
A1 Milham, P.J.
A1 Ochoa Hueso, Raúl
A1 Pathare, V.
A1 Pihlblad, J.
A1 Nevado, J.P.
A1 Powell, J.
A1 Power, S.A.
A1 Reich, P.B.
A1 Riegler, M.
A1 Ellsworth, D.S.
A1 Smith, B.
A2 Biología
AB The importance of phosphorus (P) in regulating ecosystem responses to climate change has fostered P-cycleimplementationin land surface models, but their CO2 effects predictions have not been evaluated against measurements.Here, we perform a data-drivenmodel evaluation where simulations of eight widely used P-enabledmodels were confronted with observations from a long-termfree-airCO2 enrichment experiment in a mature, P-limitedEucalyptus forest. We show that most models predicted the correct sign and magnitude of the CO2 effecton ecosystem carbon (C) sequestration, but they generally overestimated the effects on plant C uptake andgrowth. We identify leaf-to-canopyscaling of photosynthesis, plant tissue stoichiometry, plant belowground Callocation, and the subsequent consequences for plant-microbialinteraction as key areas in which models of ecosystemC-Pinteraction can be improved. Together, this data-modelintercomparison reveals data-driveninsightsinto the performance and functionality of P-enabledmodels and adds to the existing evidence that the globalCO2-drivencarbon sink is overestimated by models.
PB Science Advances
SN 2375-2548
YR 2024
FD 2024-07-03
LK http://hdl.handle.net/10498/35478
UL http://hdl.handle.net/10498/35478
LA eng
DS Repositorio Institucional de la Universidad de Cádiz
RD 06-nov-2026