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Using a dune forest as a filtering ecosystem for water produced by a treatment plant - One decade of environmental assessment

hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorTRICHET, Pierre
hal.structure.identifierUnité Expérimentale Forêt Pierroton [UEFP]
dc.contributor.authorCHEVAL, Nicolas
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorLAMBROT, Catherine
hal.structure.identifierOffice national des forêts [ONF]
dc.contributor.authorMAUGARD, Francis
dc.contributor.authorREYNAUD, Virginie
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorCORNU, Jean-Yves
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorDENAIX, Laurence
hal.structure.identifierInteractions Sol Plante Atmosphère [UMR ISPA]
dc.contributor.authorAUGUSTO, Laurent
dc.date.accessioned2024-04-08T12:05:22Z
dc.date.available2024-04-08T12:05:22Z
dc.date.issued2018
dc.identifier.issn0048-9697
dc.identifier.urihttps://oskar-bordeaux.fr/handle/20.500.12278/196353
dc.description.abstractEnA dune forest in SW France composed of maritime pines was irrigated with treated wastewater for a decade in an experiment (including irrigated plots versus control plots) to evaluate the environmental impact of applying wastewater on the water table, soil properties, and plants. The amount of treated wastewater (1921 mm yr−1) applied was twice the annual precipitation. Nutrient inputs were also very high, particularly nitrogen (N: 539 kg-N ha−1 yr−1), phosphorus (P: 102 kg-P ha−1 yr−1), and calcium (Ca: 577 kg-Ca ha−1 yr−1). Irrigation caused a rise in the water table, and increased its sodium (Na), NO3−, potassium (K), and calcium concentrations. Soil properties were affected by irrigation at least down to a depth of 1.2 m. After eight years of irrigation, soil pH had increased by 1.4 units, and soil available P content (POlsen) increased nearly 8-fold. In the short-term (i.e. 1–3 years), irrigation with treated wastewater improved growth, standing biomass, and the nutritional status of the vegetation. But tree dieback started in the fourth year of irrigation and worsened until the end of the monitoring period when almost all the irrigated trees were dead or moribund. The understory composition was drastically modified by irrigation, with an increase in α-biodiversity and in the biomass of herbaceous species, and a reduction in woody species abundance. The factor that best explained tree dieback was manganese nutrition (Mn): (i) the Mn content of the tree foliage was negatively affected by irrigation and below the deficiency values reported for pine species, and (ii) soil available Mn (CaCl2 extraction) decreased by half in the topsoil layer. Manganese deficiency was probably the consequence of the increase in soil pH, which in turn reduced soil Mn availability. Tree dieback was not related to either to a macronutrient deficiency or to toxicity caused by a trace element.
dc.language.isoen
dc.publisherElsevier
dc.subjectPollution
dc.subjectTrace metal contamination
dc.subject.enManganese deficiency
dc.subject.enNutrient leaching
dc.subject.enSand dune
dc.subject.enTree dieback
dc.subject.enWater infiltration
dc.title.enUsing a dune forest as a filtering ecosystem for water produced by a treatment plant - One decade of environmental assessment
dc.typeArticle de revue
dc.identifier.doi10.1016/j.scitotenv.2018.05.263
dc.subject.halSciences du Vivant [q-bio]
dc.subject.halSciences de l'environnement
bordeaux.journalScience of the Total Environment
bordeaux.page849-861
bordeaux.volume640-641
bordeaux.hal.laboratoriesInteractions Soil Plant Atmosphere (ISPA) - UMR 1391*
bordeaux.institutionBordeaux Sciences Agro
bordeaux.institutionINRAE
bordeaux.peerReviewedoui
hal.identifierhal-02623348
hal.version1
hal.popularnon
hal.audienceInternationale
hal.origin.linkhttps://hal.archives-ouvertes.fr//hal-02623348v1
bordeaux.COinSctx_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.jtitle=Science%20of%20the%20Total%20Environment&rft.date=2018&rft.volume=640-641&rft.spage=849-861&rft.epage=849-861&rft.eissn=0048-9697&rft.issn=0048-9697&rft.au=TRICHET,%20Pierre&CHEVAL,%20Nicolas&LAMBROT,%20Catherine&MAUGARD,%20Francis&REYNAUD,%20Virginie&rft.genre=article


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