Afficher la notice abrégée

In situ fate of mineral N in the tree-soil-microorganism system before and after budburst in 20-year-old Quercus petraea (Matt.) Liebl.

hal.structure.identifierEcologie Systématique et Evolution [ESE]
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorMAXWELL, Tania
hal.structure.identifierEcologie Systématique et Evolution [ESE]
dc.contributor.authorBAZOT, Stéphane
hal.structure.identifierInstitut Jean-Pierre Bourgin [IJPB]
dc.contributor.authorMARMAGNE, Anne
hal.structure.identifierEcologie Systématique et Evolution [ESE]
dc.contributor.authorPINEK, Liliana
hal.structure.identifierEcologie Systématique et Evolution [ESE]
dc.contributor.authorLAFFONT, Baptiste
hal.structure.identifierEcologie Systématique et Evolution [ESE]
dc.contributor.authorVINCENT, Gaëlle
hal.structure.identifierEcologie Systématique et Evolution [ESE]
dc.contributor.authorBARTHES, Laure
dc.date2020
dc.date.accessioned2024-04-08T11:53:16Z
dc.date.available2024-04-08T11:53:16Z
dc.date.issued2020
dc.identifier.issn0032-079X
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195524
dc.description.abstractEnAims: We simultaneously quantified the fate of soil absorbed mineral nitrogen in different tree compartments along with nitrogen immobilization by microorganisms during spring in 20-year-old oak trees. Methods: A soil-applied(15)N solution was traced in situ into the fine roots, medium roots, xylem, phloem, branches, leaves, extractable soil, and microbial biomass before and after budburst, until LAI maximum was reached. Results: During the three weeks following the labeling, around half of the(15)N applied was incorporated into the microbial biomass while the leafless trees absorbed less than 10% of the(15)N. Before and after budburst, the microbial compartment was the main pool of(15)N, and yet the soil-absorbed(15)N still significantly contributed to the leaf nitrogen pool at budburst. This contribution in leaves sharply increased in the days following budburst. Conclusion: The potential competition for mineral nitrogen between trees and the soil microbial biomass is strong during spring. The dependence of the leaf nitrogen pool to internal or external stocks of nitrogen at budburst could be conditioned by environmental conditions.
dc.language.isoen
dc.publisherSpringer Verlag
dc.subject.enNitrogen uptake
dc.subject.enSoil N
dc.subject.enMicroorganisms
dc.subject.enBroadleaf tree
dc.subject.enN-15 labeling
dc.title.enIn situ fate of mineral N in the tree-soil-microorganism system before and after budburst in 20-year-old Quercus petraea (Matt.) Liebl.
dc.typeArticle de revue
dc.identifier.doi10.1007/s11104-020-04610-4
dc.subject.halSciences de l'environnement
bordeaux.journalPlant and Soil
bordeaux.page1-14
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02950530
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02950530v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Plant%20and%20Soil&rft.date=2020&rft.spage=1-14&rft.epage=1-14&rft.eissn=0032-079X&rft.issn=0032-079X&rft.au=MAXWELL,%20Tania&BAZOT,%20St%C3%A9phane&MARMAGNE,%20Anne&PINEK,%20Liliana&LAFFONT,%20Baptiste&rft.genre=article


Fichier(s) constituant ce document

FichiersTailleFormatVue

Il n'y a pas de fichiers associés à ce document.

Ce document figure dans la(les) collection(s) suivante(s)

Afficher la notice abrégée