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Biomass and nutrients in tree root systems-sustainable harvesting of an intensively managed Pinus pinaster (Ait.) planted forest

hal.structure.identifierTransfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM]
dc.contributor.authorAUGUSTO, Laurent
hal.structure.identifierTransfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM]
dc.contributor.authorACHAT, David L.
hal.structure.identifierTransfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM]
dc.contributor.authorBAKKER, Mark R.
ORCID: 0000-0002-3251-3586
IDREF: 133872483
hal.structure.identifierUnité Expérimentale Forêt Pierroton [UEFP]
dc.contributor.authorBERNIER, Frédéric
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorBERT, Didier
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorDANJON, Frederic
hal.structure.identifierTransfert Sol-Plante et Cycle des Eléments Minéraux dans les Ecosystèmes Cultivés [TCEM]
hal.structure.identifierÉcologie fonctionnelle et physique de l'environnement [EPHYSE]
dc.contributor.authorKHLIFA, Rim
hal.structure.identifierBiodiversité, Gènes & Communautés [BioGeCo]
dc.contributor.authorMEREDIEU, Céline
hal.structure.identifierÉcologie fonctionnelle et physique de l'environnement [EPHYSE]
dc.contributor.authorTRICHET, Pierre
dc.date.accessioned2022-10-12T13:19:47Z
dc.date.available2022-10-12T13:19:47Z
dc.date.issued2015-03
dc.identifier.issn1757-1693
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/157944
dc.description.abstractEnTo develop sources of renewable energy and to reduce greenhouse gas emissions, increasing attention has been given to the extraction of forest biomass, especially in the form of harvest residues. However, increasing the removal of biomass, and hence nutrients, has raised concerns about the sustainability of site fertility and forest productivity. The environmental cost of harvesting belowground biomass is still not fully understood. The objectives of this study were to (i) estimate the stocks of belowground biomass that potentially can be collected; (ii) measure the nutrient (N, P, K, Ca, Mg) concentrations of the different root compartments (stumps, coarse and thin roots); and to (iii) quantify the biomass and nutrient exports under different scenarios, including harvests of above and belowground compartments. The study was carried out on Pinus pinaster stands located in southwestern France. Results showed that roots could be a significant fuelwood resource, particularly at forest clear cutting. Negative relationships between root diameter and root nutrient concentration were observed, independently of root function or tree age. Such relationships can be used to accurately simulate nutrient concentrations in roots as well as nutrient exports. Combining our original results on roots with previously published data on the aboveground compartments showed that nutrient losses were higher in canopy harvest scenarios than in root harvest scenarios. This was mainly due to high nutrient concentrations of needles. We concluded that stump and root harvest could be sustainable in our study context, conversely to foliage harvest. Because thin roots have higher nutrient concentrations than coarse roots and the proportion of thin roots increased with an increase in the distance from the tree, collecting roots only in the close vicinity of the stumps should limit nutrient exports (particularly N) without unnecessarily reducing fuelwood biomass.
dc.language.isoen
dc.rights.urihttp://creativecommons.org/licenses/by/
dc.subject.enBiomass
dc.subject.enHarvest residues
dc.subject.enFuelwood
dc.subject.enForest
dc.subject.ennutrients
dc.subject.enTree roots
dc.title.enBiomass and nutrients in tree root systems-sustainable harvesting of an intensively managed Pinus pinaster (Ait.) planted forest
dc.typeArticle de revue
dc.identifier.doi10.1111/gcbb.12127
dc.subject.halSciences de l'environnement
bordeaux.journalGCB Bioenergy
bordeaux.page231-243
bordeaux.volume7
bordeaux.hal.laboratoriesBioGeCo (Biodiversité Gènes & Communautés) - UMR 1202*
bordeaux.issue2
bordeaux.institutionUniversité de Bordeaux
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02592634
hal.version1
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02592634v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=GCB%20Bioenergy&rft.date=2015-03&rft.volume=7&rft.issue=2&rft.spage=231-243&rft.epage=231-243&rft.eissn=1757-1693&rft.issn=1757-1693&rft.au=AUGUSTO,%20Laurent&ACHAT,%20David%20L.&BAKKER,%20Mark%20R.&BERNIER,%20Fr%C3%A9d%C3%A9ric&BERT,%20Didier&rft.genre=article


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