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Understorey-overstorey biotic and nutrient interactions are key factors for Pinus pinaster growth and development under oligotrophic conditions

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorVIDAL, David
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorAUGUSTO, Laurent
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorBAKKER, Mark
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorTRICHET, Pierre
hal.structure.identifierUnité expérimentale Forêt Pierroton [UEFP]
dc.contributor.authorPUZOS, Luc
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorDOMEC, Jean-Christophe
dc.date.accessioned2024-04-08T11:43:38Z
dc.date.available2024-04-08T11:43:38Z
dc.date.issued2021-11-17
dc.identifier.issn0282-7581
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/195115
dc.description.abstractEnThe main objective of this study was to examine the interactive effects of nutrient availability and understorey plants, including a nitrogen(N)-fixing shrub, on growth, physiology and survival of commercial maritime pines (Pinus pinaster Ait.). Three experimental sites within the Landes de Gascogne forest were installed in two wet moorlands (one dominated by gorse, a leguminous shrub and one by a perennial grass), and in one dry moorland dominated by ericaceous plants. In dry moorland, the ericaceous understorey increased pine mortality and decreased pine growth, suggesting a competition for water, the most limiting resource of this ecosystem. In wet moorland, a decrease in pine growth suggested a strong competition for soil resources, with or without phosphorus addition. In the other wet moorland dominated by gorse, pines responded to competition for light through stem elongation and self-pruning, but not by reducing growth. The intercropped gorse improved pine N-nutrition and trees acclimated to shrubs by growing more fine roots. Gorse had a positive effect on stomatal conductance during spring, while pine water status decreased moderately with increasing shrub competition during summer. Our results provide new understanding of the feasibility of using gorse as an intercropping N-fixing plant in managed forests, and revealed the structural and physiological trade-offs that exist between increasing N-availability and competition for water and light.
dc.language.isoen
dc.publisherTaylor & Francis
dc.subject.enNitrogen fixation
dc.subject.engorse
dc.subject.eninter-cropping system
dc.subject.enphosphorous
dc.subject.enpine plantation
dc.subject.enstomatal conductance
dc.title.enUnderstorey-overstorey biotic and nutrient interactions are key factors for Pinus pinaster growth and development under oligotrophic conditions
dc.typeArticle de revue
dc.identifier.doi10.1080/02827581.2021.1992002
dc.subject.halSciences de l'environnement
bordeaux.journalScandinavian Journal of Forest Research
bordeaux.page563-574
bordeaux.volume36
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.issue7-8
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-04123128
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-04123128v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Scandinavian%20Journal%20of%20Forest%20Research&rft.date=2021-11-17&rft.volume=36&rft.issue=7-8&rft.spage=563-574&rft.epage=563-574&rft.eissn=0282-7581&rft.issn=0282-7581&rft.au=VIDAL,%20David&AUGUSTO,%20Laurent&BAKKER,%20Mark&TRICHET,%20Pierre&PUZOS,%20Luc&rft.genre=article


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