Predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation
The relevance of models early developed under temperate climate and with a generic parameterization for simulating long-term accumulation of trace metals in soil amended with organic wastes in tropical areas is questionable. This study therefore aimed at adjusting the parameterization of an accumulation model to the specific conditions of the tropical island of la Reunion and validating the model against mid-term field trials. The usual parameterisation based on generic multiples regression equations taken from the literature substantially over-predicted trace metals concentration in the edible organs of plants and in the soil solution determined from local data set and thus overestimated trace metals output from the upper soil layer by plant uptake and leaching. The generic multiples regression equations were therefore substituted by distribution patterns based on the local data set to adjust model parameterization to the specific conditions of la Reunion. The adjusted model predicted fairly well trace metals accumulation in the upper soil layer amended with organic wastes compared with the generic model that tended to slightly underestimated trace metals accumulation. Further validation of the adjusted model against two additional filed trials is currently in progress. This will open perspectives for applying the model to the assessment of long term recycling of organic wastes at the island scale.
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Subjects: | P33 - Chimie et physique du sol, U10 - Informatique, mathématiques et statistiques, Q70 - Traitement des déchets agricoles, |
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dig-cirad-fr-5705852024-02-14T15:20:43Z http://agritrop.cirad.fr/570585/ http://agritrop.cirad.fr/570585/ Predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation. Oustrière Nadège, Lahbib-Burchard Taos, Doelsch Emmanuel, Feder Frédéric, Wassenaar Tom, Bravin Matthieu. 2013. In : 15 ème Conférence internationale RAMIRAN: Recyclage des résidus organiques pour l'agriculture: de la gestion des déchets aux services écosystémiques, Versailles, France, 3 au 5 juin 2013. INRA. s.l. : INRA, 4 p. International Ramiran Conference. 15, Versaille, France, 3 Juin 2013/5 Juin 2013.http://www.ramiran.net/doc13/Proceeding_2013/documents/S2.28..pdf <http://www.ramiran.net/doc13/Proceeding_2013/documents/S2.28..pdf> Predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation Oustrière, Nadège Lahbib-Burchard, Taos Doelsch, Emmanuel Feder, Frédéric Wassenaar, Tom Bravin, Matthieu eng 2013 INRA 15 ème Conférence internationale RAMIRAN: Recyclage des résidus organiques pour l'agriculture: de la gestion des déchets aux services écosystémiques, Versailles, France, 3 au 5 juin 2013 P33 - Chimie et physique du sol U10 - Informatique, mathématiques et statistiques Q70 - Traitement des déchets agricoles The relevance of models early developed under temperate climate and with a generic parameterization for simulating long-term accumulation of trace metals in soil amended with organic wastes in tropical areas is questionable. This study therefore aimed at adjusting the parameterization of an accumulation model to the specific conditions of the tropical island of la Reunion and validating the model against mid-term field trials. The usual parameterisation based on generic multiples regression equations taken from the literature substantially over-predicted trace metals concentration in the edible organs of plants and in the soil solution determined from local data set and thus overestimated trace metals output from the upper soil layer by plant uptake and leaching. The generic multiples regression equations were therefore substituted by distribution patterns based on the local data set to adjust model parameterization to the specific conditions of la Reunion. The adjusted model predicted fairly well trace metals accumulation in the upper soil layer amended with organic wastes compared with the generic model that tended to slightly underestimated trace metals accumulation. Further validation of the adjusted model against two additional filed trials is currently in progress. This will open perspectives for applying the model to the assessment of long term recycling of organic wastes at the island scale. conference_item info:eu-repo/semantics/conferenceObject Conference info:eu-repo/semantics/publishedVersion http://agritrop.cirad.fr/570585/1/ID570585.pdf text Cirad license info:eu-repo/semantics/openAccess https://agritrop.cirad.fr/mention_legale.html http://www.ramiran.net/doc13/Proceeding_2013/documents/S2.28..pdf info:eu-repo/semantics/altIdentifier/purl/http://www.ramiran.net/doc13/Proceeding_2013/documents/S2.28..pdf |
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P33 - Chimie et physique du sol U10 - Informatique, mathématiques et statistiques Q70 - Traitement des déchets agricoles P33 - Chimie et physique du sol U10 - Informatique, mathématiques et statistiques Q70 - Traitement des déchets agricoles |
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P33 - Chimie et physique du sol U10 - Informatique, mathématiques et statistiques Q70 - Traitement des déchets agricoles P33 - Chimie et physique du sol U10 - Informatique, mathématiques et statistiques Q70 - Traitement des déchets agricoles Oustrière, Nadège Lahbib-Burchard, Taos Doelsch, Emmanuel Feder, Frédéric Wassenaar, Tom Bravin, Matthieu Predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation |
description |
The relevance of models early developed under temperate climate and with a generic parameterization for simulating long-term accumulation of trace metals in soil amended with organic wastes in tropical areas is questionable. This study therefore aimed at adjusting the parameterization of an accumulation model to the specific conditions of the tropical island of la Reunion and validating the model against mid-term field trials. The usual parameterisation based on generic multiples regression equations taken from the literature substantially over-predicted trace metals concentration in the edible organs of plants and in the soil solution determined from local data set and thus overestimated trace metals output from the upper soil layer by plant uptake and leaching. The generic multiples regression equations were therefore substituted by distribution patterns based on the local data set to adjust model parameterization to the specific conditions of la Reunion. The adjusted model predicted fairly well trace metals accumulation in the upper soil layer amended with organic wastes compared with the generic model that tended to slightly underestimated trace metals accumulation. Further validation of the adjusted model against two additional filed trials is currently in progress. This will open perspectives for applying the model to the assessment of long term recycling of organic wastes at the island scale. |
format |
conference_item |
topic_facet |
P33 - Chimie et physique du sol U10 - Informatique, mathématiques et statistiques Q70 - Traitement des déchets agricoles |
author |
Oustrière, Nadège Lahbib-Burchard, Taos Doelsch, Emmanuel Feder, Frédéric Wassenaar, Tom Bravin, Matthieu |
author_facet |
Oustrière, Nadège Lahbib-Burchard, Taos Doelsch, Emmanuel Feder, Frédéric Wassenaar, Tom Bravin, Matthieu |
author_sort |
Oustrière, Nadège |
title |
Predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation |
title_short |
Predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation |
title_full |
Predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation |
title_fullStr |
Predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation |
title_full_unstemmed |
Predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation |
title_sort |
predictive modelling of the long-term accumulation of trace metals in tropical soils amended with organic wastes - field trial validation |
publisher |
INRA |
url |
http://agritrop.cirad.fr/570585/ http://agritrop.cirad.fr/570585/1/ID570585.pdf |
work_keys_str_mv |
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