Mostrar el registro sencillo del ítem

Towards a global model for soil inorganic phosphorus dynamics: dependence of exchange kinetics and soil bioavailability on soil physicochemical properties

hal.structure.identifierCSIRO Marine and Atmospheric Research [Aspendale]
dc.contributor.authorWANG, Ying‐ping
hal.structure.identifierCSIRO Marine and Atmospheric Research [Aspendale]
dc.contributor.authorHUANG, Yuanyuan
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorAUGUSTO, Laurent
hal.structure.identifierLaboratoire des Sciences du Climat et de l'Environnement [Gif-sur-Yvette] [LSCE]
hal.structure.identifierModélisation des Surfaces et Interfaces Continentales [MOSAIC]
dc.contributor.authorGOLL, Daniel
hal.structure.identifieragroscope
dc.contributor.authorHELFENSTEIN, Julian
hal.structure.identifierGuangzhou University
dc.contributor.authorHOU, Enqing
dc.date.accessioned2024-04-08T11:48:12Z
dc.date.available2024-04-08T11:48:12Z
dc.date.issued2022
dc.identifier.issn0886-6236
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195309
dc.description.abstractEnThe representation of phosphorus cycling in global land models remains quite simplistic, particularly on soil inorganic phosphorus. For example, sorption and desorption remain unresolved and their dependence on soil physical and chemical properties is ignored. Empirical parameter values are usually based on expert knowledge or data from few sites with debatable global representativeness in most global land models. To overcome these issues, we compiled from data of inorganic soil phosphorus (P) fractions and calculated the fraction of added P remaining in soil solution over time of 147 soil samples to optimize three parameters in a model of soil inorganic P dynamics. The calibrated model performed well (r2>0.7 for 122 soil samples). Model parameters vary by several orders of magnitude, and correlate with soil P fractions of different inorganic pools, soil organic carbon and oxalate extractable metal oxide concentrations among the soil samples. The modelled bioavailability of soil P depends on, not only, the desorption rates of labile and sorbed pool, inorganic phosphorus fractions, the slope of P sorbed against solution P concentration, but also on the ability of biological uptake to deplete solution P concentration and the time scale. The model together with the empirical relationships of model parameters on soil properties can be used to quantify bioavailability of soil inorganic P on various timescale especially when coupled within global land models.
dc.language.isoen
dc.publisherAmerican Geophysical Union
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enphosphorus fractions
dc.subject.englobal modelling
dc.subject.enHedley fractionation
dc.subject.enisotopic exchange kinetics
dc.subject.ensorption
dc.subject.endesorption
dc.subject.enavailable phosphorus
dc.title.enTowards a global model for soil inorganic phosphorus dynamics: dependence of exchange kinetics and soil bioavailability on soil physicochemical properties
dc.typeArticle de revue
dc.identifier.doi10.1029/2021GB007061
dc.subject.halPlanète et Univers [physics]/Océan, Atmosphère
dc.subject.halPlanète et Univers [physics]/Interfaces continentales, environnement
bordeaux.journalGlobal Biogeochemical Cycles
bordeaux.pagee2021GB007061
bordeaux.volume36
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue3
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-03607493
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-03607493v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Global%20Biogeochemical%20Cycles&rft.date=2022&rft.volume=36&rft.issue=3&rft.spage=e2021GB007061&rft.epage=e2021GB007061&rft.eissn=0886-6236&rft.issn=0886-6236&rft.au=WANG,%20Ying%E2%80%90ping&HUANG,%20Yuanyuan&AUGUSTO,%20Laurent&GOLL,%20Daniel&HELFENSTEIN,%20Julian&rft.genre=article


Archivos en el ítem

ArchivosTamañoFormatoVer

No hay archivos asociados a este ítem.

Este ítem aparece en la(s) siguiente(s) colección(ones)

Mostrar el registro sencillo del ítem