Per citar aquest document: https://ddd.uab.cat/record/181671
A representation of the phosphorus cycle for ORCHIDEE (revision 4520)
Goll, Daniel (Laboratoire des Sciences du Climat et de l'Environment)
Peñuelas, Josep (Universitat Autònoma de Barcelona. Departament de Biologia Animal, de Biologia Vegetal i d'Ecologia)
Vuichard, Nicolas (Laboratoire des Sciences du Climat et de l'Environment)
Maignan, F. (Laboratoire des Sciences du Climat et de l'Environment)
Jornet-Puig, Albert (Laboratoire des Sciences du Climat et de l'Environment)
Sardans i Galobart, Jordi (Centre de Recerca Ecològica i Aplicacions Forestals)
Violette, Aurélie (Laboratoire des Sciences du Climat et de l'Environment)
Peng, Sushi (Max Planck Institute for Biogeochemistry)
Sun, Yan (Max Planck Institute for Biogeochemistry)
Kvakic, Marko (Institut national de la recherche agronomique. Interactions Sol Plante Atmosphère)
Gimberteau, Matthieu (Laboratoire des Sciences du Climat et de l'Environment)
Guenet, Bertrand (Laboratoire des Sciences du Climat et de l'Environnement)
Zaehle, Soenke (Max Planck Institute for Biogeochemistry)
Peñuelas, Josep (Centre de Recerca Ecològica i Aplicacions Forestals)
Janssens, Ivan A. (Universiteit Antwerpen. Departement Biologie)
Ciais, Philippe (Laboratoire des Sciences du Climat et de l’Environnement)

Data: 2017
Resum: Land surface models rarely incorporate the terrestrial phosphorus cycle and its interactions with the carbon cycle, despite the extensive scientific debate about the importance of nitrogen and phosphorus supply for future land carbon uptake. We describe a representation of the terrestrial phosphorus cycle for the ORCHIDEE land surface model, and evaluate it with data from nutrient manipulation experiments along a soil formation chronosequence in Hawaii. ORCHIDEE accounts for the influence of the nutritional state of vegetation on tissue nutrient concentrations, photosynthesis, plant growth, biomass allocation, biochemical (phosphatase-mediated) mineralization, and biological nitrogen fixation. Changes in the nutrient content (quality) of litter affect the carbon use efficiency of decomposition and in return the nutrient availability to vegetation. The model explicitly accounts for root zone depletion of phosphorus as a function of root phosphorus uptake and phosphorus transport from the soil to the root surface. The model captures the observed differences in the foliage stoichiometry of vegetation between an early (300-year) and a late (4. 1?Myr) stage of soil development. The contrasting sensitivities of net primary productivity to the addition of either nitrogen, phosphorus, or both among sites are in general reproduced by the model. As observed, the model simulates a preferential stimulation of leaf level productivity when nitrogen stress is alleviated, while leaf level productivity and leaf area index are stimulated equally when phosphorus stress is alleviated. The nutrient use efficiencies in the model are lower than observed primarily due to biases in the nutrient content and turnover of woody biomass. We conclude that ORCHIDEE is able to reproduce the shift from nitrogen to phosphorus limited net primary productivity along the soil development chronosequence, as well as the contrasting responses of net primary productivity to nutrient addition.
Nota: Paper contact with Daniel Goll: daniel.goll@lsce.ipsl.fr
Nota: Agraïments: S. Zaehle was supported by the QUINCY project of the European Research Council (ERC-2014-CoG-647204). We thank two anonymous referees and the editor H. Sato for their constructive comments. Further, we thank the TRY initiative and database, which is hosted, developed, and maintained by J. Kattge and G. Boenisch (Max Planck Institute for Biogeochemistry, Jena, DE), for additional leaf stoichiometric data on Metrosideros, Ying-Ping Wang and Ben Houlton for sharing their data compilation on the Hawaiian sites, and Sebastiaan Luysseart for the discussions related to biomass allocation.
Nota: Número d'acord de subvenció EC/FP7/610028
Drets: Aquest document està subjecte a una llicència d'ús Creative Commons. Es permet la reproducció total o parcial, la distribució, la comunicació pública de l'obra i la creació d'obres derivades, fins i tot amb finalitats comercials, sempre i quan es reconegui l'autoria de l'obra original. Creative Commons
Llengua: Anglès
Document: article ; recerca ; publishedVersion
Publicat a: Geoscientific model development, Vol. 10 (Oct. 2017) , p. 3745–3770, ISSN 1991-959X,

DOI: 0.5194/gmd-10-3745-2017


26 p, 1.5 MB

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Documents de recerca > Documents dels grups de recerca de la UAB > Centres i grups de recerca (producció científica) > Ciències > CREAF (Centre de Recerca Ecològica i d'Aplicacions Forestals) > Imbalance-P
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 Registre creat el 2017-10-18, darrera modificació el 2017-11-01



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