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4. Evaluation of Plant Responses to Atmospheric Nitrogen Deposition in France Using Integrated Soil-Vegetation Models

Author

Probst, Anne, Obeidy, Carole, Gaudio, Noémie, Belyazid, Salim, Gégout, Jean-Claude, Alard, Didier, Corket, Emmanuel, Party, Jean-Paul, Gauquelin, Thierry, Mansat, Arnaud, Nihlgård, Bengt, Leguédois, Sophie, Sverdrup, Harald U., Alloway, Brian J., Series editor, Trevors, Jack T., Series editor, de Vries, Wim, editor, Hettelingh, Jean-Paul, editor, and Posch, Maximilian, editor

Published
2015
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5. Modelling pedogenesis of Technosols

Author

Leguédois, Sophie, Séré, Geoffroy, Auclerc, Apolline, Cortet, Jérôme, Huot, Hermine, Ouvrard, Stéphanie, Watteau, Françoise, Schwartz, Christophe, and Morel, Jean Louis

Published
2016
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7. Splash projection distance for aggregated soils: theory and experiment

Author

Leguedois, Sophie, Planchon, Olivier, Legout, Cedric, and Le Bissonnais, Yves

Subjects
Soils -- Properties, Soil chemistry -- Research, Earth sciences
Abstract

Splash is an essential process in interrill erosion because it detaches soil fragments from their substrate and transports them. However, splash measurements are difficult to interpret and relatively little is known about the influence of particle characteristics on the spatial distribution of splash. The objective of this work is to study the splash distribution of different size fractions for aggregated soils. We used a recently proposed theory for spatial distribution by splash to interpret experimental data on the radial distribution of soil fragments splashed by simulated rainfall. A laboratory device with five concentric rings was used to determine average splash lengths for 16 fragment size fractions (0.05 to > 2000 [micro]m) of four soils. Sieved soil (3- to 5-mm size fraction) was exposed to simulated rainfall at 29 mm [h.sup.-1] and with a time-specific kinetic energy of 252 J [m.sup.-2] [h.sup.-1]. We interpreted the measured masses of fragments splashed into the different rings using an approximate solution of the exponential splash distribution theory applied to the experimental design. We demonstrated that the theory is valid for bulk aggregated soil as well as for individual fragment size fractions. The derived average splash lengths ranged from 4 to 23 cm, depending on the fragment size and soil. Splash lengths were greatest for soil fragments of 100 to 200 [micro]m, and decreased for finer and coarser size fractions. Comparison of these findings with physically-based theory suggests that the coarser fragments, 50 to 2000 [micro]m, are transported as single airborne particles, whereas the smaller ones,

Published
2005

9. Speciation of REEs in ionic REE mine tailings under reclamation: Experimental and modelling study

Author

Janot, Noémie, Huot, Hermine, Montarges-Pelletier, Emmanuelle, Watteau, Françoise, Groenenberg, Jan E., Tang, Ye-Tao, Morel, Jean-Louis, Qiu, Rong-Liang, Leguedois, Sophie, Interactions Sol Plante Atmosphère (ISPA), Institut National de la Recherche Agronomique (INRA)-Ecole Nationale Supérieure des Sciences Agronomiques de Bordeaux-Aquitaine (Bordeaux Sciences Agro), School of Environmental Science and Engineering, Dong Hua University, Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Department of Soil Quality, Wageningen University and Research Center (WUR), Labex Ressources 21, ANR: 10-LABX-0021,RESSOURCES21,Strategic metal resources of the 21st century(2010), Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), Interactions Sol Plante Atmosphère (UMR ISPA), Sun Yat-Sen University [Guangzhou] (SYSU), Université de Lorraine (UL)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Wageningen University and Research [Wageningen] (WUR), LabEx Ressources 21, and ANR-10-LABX-0021,RESSOURCES21,Strategic metal resources of the 21st century(2010)

Subjects
[SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [SDV]Life Sciences [q-bio], [SDV.SA.SDS]Life Sciences [q-bio]/Agricultural sciences/Soil study, [SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology
Abstract

International audience; Specific to Southern China, ion-adsorption REEs deposits represented 30% of worldwide production in 2017. REEs were traditionally mined by heap leaching using ammonium sulfate, leading to significant environmental damage. Reclamation of the resulting mine tailings is limited by the poor physical conditions of the tailings, their low organic matter and nutrient levels as well as their high residual REEs content. Reclamation practices of such sites can include natural attenuation or phytoremediation, using soil amendment or construction, and planting of various species. These practices induce drastic changes in the biogeochemical conditions of the soils and thus potentially modify REEs and nutrients availability, affecting the sustainability of the reclamation.To gain understanding on the impact of reclamation practices on REEs dynamics, we study a mine tailing site in Ganzhou city, Jiangxi province (116 km²), that has been abandoned for 10y. Experimental plots (2x2m) were installed on the top of the tailings to monitor plants and soil development over time and evaluate different phytoremediation techniques: phytostabilization using perennial grasses or fiber plants, and phytoextraction using REEs hyperaccumulators.Understanding REEs fate and bioavailability requires knowledge of the speciation of REEs in the tailings. Size fractionation and elemental analysis showed that REEs are concentrated in the fine fraction of the material. SEM and X-ray microprobe analyses showed that Ce is mostly present as Ce4+, but Ce3+ was evidenced in co-localization with other REEs on several occurences in topsoil sample.To evaluate the different practices, we developed a geochemical model describing REEs speciation in these materials. A process-based multi-surface model was parametrized for REEs surface complexation in soils in the platform ORCHESTRA. Based on measured contents of REEs, clays and Al/Fe-(hydr)oxides and solution pH and DOC concentration, we predicted dissolved REEs concentrations in pore water and CaCl2-extract. The model is evaluated by comparing modelled vs. measured REEs solid:solution partitioning in different plots. Results show the primordial influence of both pH and organic content in speciation and partitioning of REEs.

Published
2019

11. Phytostabilization of ionic rare earth element mine tailings in South China

Author

Buyse, Marie, Campanella, Laurine, Chen, Ying-Yan, Guo, Mei-Na, Li, Ya-Ying, LIU, Chang, Liu, Wen-Shen, liu, Ye, Mariatte, Claire, Monnier, Augustin, Pigot, Justine, Ye, Peng-Xian, Yuan, Ming, Zhu, Shi-Chen, Auclerc, Apolline, Chao, Yuanqing, Janot, Noémie, Leguedois, Sophie, Séré, Geoffroy, Morel, Jean-Louis, Tang, Ye-Tao, Qiu, Rong-Liang, and Huot, Hermine

Published
2019

12. Rare earth elements dynamics in reclaimed mine tailings: Experimental and modelling study

Author

Janot, Noémie, Huot, Hermine, Leguedois, Sophie, Séré, Geoffroy, Tang, Yetao, Morel, Jean-Louis, Qiu, Rong Liang, Groenenberg, Jan E., Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC), Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut Ecologie et Environnement (INEE), Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS), Sun Yat-Sen University (SYSU), Wageningen University and Research Centre (WUR), Labex ressources 21, ANR-10-LABX-0021,RESSOURCES21,Strategic metal resources of the 21st century(2010), Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), ANR: 10-LABX-0021,RESSOURCES21,Strategic metal resources of the 21st century(2010), ProdInra, Archive Ouverte, and Laboratoires d'excellence - Labex - Strategic metal resources of the 21st century - - RESSOURCES212010 - ANR-10-LABX-0021 - LABX - VALID

Subjects
[SDU.STU.AG] Sciences of the Universe [physics]/Earth Sciences/Applied geology, [SDU.STU.GC]Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [SDV]Life Sciences [q-bio], [SDU.STU.GC] Sciences of the Universe [physics]/Earth Sciences/Geochemistry, [INFO.INFO-MO] Computer Science [cs]/Modeling and Simulation, [SDU.STU.AG]Sciences of the Universe [physics]/Earth Sciences/Applied geology, [INFO.INFO-MO]Computer Science [cs]/Modeling and Simulation, [SDU.STU.MI] Sciences of the Universe [physics]/Earth Sciences/Mineralogy, [SDU.STU.MI]Sciences of the Universe [physics]/Earth Sciences/Mineralogy
Abstract

National audience; Rare earth elements dynamics in reclaimed mine tailings: Experimental and modelling study. Cycle géochimique des métaux

Published
2018

14. Solid-solution partitioning of REE in mine-tailings, soils and sediments in China and Canada

Author

Janot, Noémie, Romero-Freire, Ana, Huot, Hermine, Leguedois, Sophie, Groenenberg, Bert Jan, Centre National de la Recherche Scientifique (CNRS), Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Sun Yat-Sen University (SYSU), Wageningen University and Research Center (WUR), Wageningen University and Research [Wageningen] (WUR), Labex, and Eidgenössische Technische Hochschule - Swiss Federal Institute of Technology in Zürich [Zürich] (ETH Zürich). CHE.

Subjects
chine, sédiment, sol, [SDV]Life Sciences [q-bio], canada, mine, soil
Abstract

Solid-solution partitioning of REE in mine-tailings, soils and sediments in China and Canada. experimental results and multi-surface modelling. ICOBTE 2017

Published
2017

15. Plant functional traits on serpentine degraded areas in Sabah (Malaysia)

Author

Quintela Sabaris, Celestino, Faucon, Michel-Pierre, Repin, Rimi, Sugau, John B., Nilus, Reuben, Echevarria, Guillaume, Leguedois, Sophie, Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Hydrogeochemistry Interactions Soil Environment unit (HYDRISE), Institut Polytechnique LaSalle Beauvais, Sabah Parks, and Forest Research Centre (FRC)

Subjects
caractérisation fonctionnelle, sol dégradé, [SDV]Life Sciences [q-bio], functional characterization, serpentine, malaisie, remédiation, biote du sol
Abstract

Plant functional traits on serpentine degraded areas in Sabah (Malaysia). A potential tool for its reclamation. International Conferences on Serpentine Ecology (ICSE)

Published
2017

16. Ecological Restoration of Ultramafic Soils

Author

Quintela Sabaris, Celestino, Echevarria, Guillaume, Leguedois, Sophie, Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), ANR Investissement d'Avenir - ANR-10-LABX-21-01, ANR-10-LABX-0021,RESSOURCES21,Strategic metal resources of the 21st century(2010), and ANR-10-LABX-0021/10-LABX-0021,RESSOURCES21,Strategic metal resources of the 21st century(2010)

Subjects
organic amendments, restauration écologique, [SDV]Life Sciences [q-bio], trait fonctionnel, amendement organique, sol métallifere
Abstract

Ecological Restoration of Ultramafic Soils. Organic Amendments and Plant Functional Traits. Conseil Scientifique LabEx Ressources 21

Published
2017

21. Modélisation en 3D de la structure d’un sol : Analyse de sensibilité et évaluation de l’approche APSF

Author

AMEUR MEDJBEUR, Amina, Leguedois, Sophie, Marilleau, Nicolas, Bredèche, Nicolas, Watteau, Françoise, Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Unité de modélisation mathématique et informatique des systèmes complexes [Bondy] (UMMISCO), Université Cadi Ayyad [Marrakech] (UCA)-Universtié Yaoundé 1 [Cameroun]-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Institut de la francophonie pour l'informatique-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut des Systèmes Intelligents et de Robotique (ISIR), Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), UMS3562, Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université de Yaoundé I-Institut de la francophonie pour l'informatique-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cadi Ayyad [Marrakech] (UCA), AMAC, Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Centre National de la Recherche Scientifique (CNRS), Observatoire Terre et Environnement de Lorraine (OTELo), Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS), and Université Cadi Ayyad [Marrakech] (UCA)-Université de Yaoundé I-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Institut de la francophonie pour l'informatique-Université Pierre et Marie Curie - Paris 6 (UPMC)

Subjects
[SDV]Life Sciences [q-bio]
Abstract

[début du texte] La reconstitution virtuelle de la structure d'un sol donné, pour une large gamme de sol, représente un enjeu important en pédologie.

Published
2014

22. A sound measurement of splash detachment rates for erosion and eluviation modelling

Author

Leguedois, Sophie, Darboux, Frédéric, Legout, Cédric, Lucas, Carine, Michel, Eric, Planchon, Olivier, Le Bissonnais, Yves, Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Unité de recherche Science du Sol (USS), Institut National de la Recherche Agronomique (INRA), Laboratoire d'Etude des Transferts en Hydrologie et Environnement, Université Joseph Fourier - Grenoble 1 (UJF), Mathématiques - Analyse, Probabilités, Modélisation - Orléans (MAPMO), Centre National de la Recherche Scientifique (CNRS)-Université d'Orléans (UO), Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Université d'Orléans (UO)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Institut de Recherche pour le Développement (IRD [ Madagascar])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro), and Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut de Recherche pour le Développement (IRD [ Madagascar])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)

Subjects
soil erosion model, [SDV]Life Sciences [q-bio], pedogenesis model, aggregate breakdown
Abstract

Splash is well recognised as a key process of interrill erosion and soil surface degradation. Splash has more recently been pointedout as a mechanism of colloid mobilisation suggesting the role of this process in controlling colloid-facilitated transfer andlessivage. Measured splash detachment rates are used to parameterise interrill erodibility in soil erosion and landscape evolutionmodels as well as eluviation in pedogenesis models. However, the available measurements of splash detachment rate are biased andexperiment-specific. Firstly, splash detachment is often considered as a single process whereas, depending on the measurementconditions (e.g. soil aggregation, surface water content, rainfall kinetic energy), raindrop impact on soil can trigger differentphysical mechanisms. Secondly, the interaction between the measurement device and the redistribution pattern of splashedparticles produces bias that are generally not taken into account when interpreting the experimental data. Thirdly, the sizeselectivity is mostly disregarded whereas several authors have already pointed to its preeminence. The objectives of thiscommunication are thus 1) to propose a measurement framework that is physically and experimentally sound to determine splashdetachment rate, 2) to quantify reliable detachment rates for different soils and size fractions, 3) to analyse the way splashdetachment is represented and parametrised in different soil erosion and pedogenesis models, and 4) to suggest a new approach tomodel splash detachment.The experimental framework we designed enabled to: 1) distinguish the consequences on soil aggregates of aggregate breakdown,and transport by splash; 2) propose an invertible mathematical model for a non-biased interpretation of the measurements. Thismodel was obtained from a numerically integrated point-equation by first conducting a sensitivity analysis to determine thesignificant parameters and then finding a simplified form by meta-modeling.Two laboratory devices were set up to sample the soil fragments produced by aggregate breakdown and transported by splash,respectively. Each device has a central circular 18-cm2 source. Sieved air-dried soil (3-to-5-mm size fraction) was exposed tosimulated rainfall at 29 mm.h-1 and with a time specific kinetic energy of 250 J.m-2.h-1. Those conditions are representative of astorm on a dry seedbed. Three cultivated soil surface materials, with various sensitivities to erosion, were tested: a silt loam, a clayloam and a silty clay loam. The size distributions (16 size fractions from 0.05 to > 2000 μm) of the broken down and splashed soilfragments were determined by combining sieving and laser diffraction. These size measurements were performed in ethanol inorder to preserve aggregation.The results show that the splash rate depends mainly on the size fraction of the aggregates available at the soil surface. The ratesare higher for the middle-sized fractions (50 to 1000 μm) and, contrarily to what is generally thought, splash of colloidal-sized soilfragments is not significant. The physical mechanism generating colloidal-sized soil fragments under rainfall impact is breakdownand it occurs only on aggregated soils. In the literature, splash detachment refers to various physical processes: in soil erosion andlandscape models, it encompasses both aggregate breakdown and splash sensu stricto, and, in eluviation and colloidal-particlestransport models, it actually relates to aggregate breakdown only. Thus splash detachment in soil erosion and landscape modelsshould be parametrised by combining aggregate stability tests (representative of aggregate breakdown) and splash cupmeasurements. Eluvation and colloidal-particles transport models should be parametrised by aggregate stability tests only.

Published
2014

23. Modelling Pedogenesis in the Anthropocene

Author

Leguedois, Sophie, Séré, Geoffroy, Cortet, Jérôme, Ouvrard, Stéphanie, Watteau, Françoise, Schwartz, Christophe, Morel, Jean-Louis, Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Centre d’Ecologie Fonctionnelle et Evolutive (CEFE), Université Paul-Valéry - Montpellier 3 (UM3)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), ProdInra, Migration, Centre National de la Recherche Scientifique (CNRS)-Université de Montpellier (UM)-École pratique des hautes études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Université Paul-Valéry - Montpellier 3 (UPVM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut de Recherche pour le Développement (IRD [France-Sud]), Université Paul-Valéry - Montpellier 3 (UPVM)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-École Pratique des Hautes Études (EPHE), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Université de Montpellier (UM)-Centre National de la Recherche Scientifique (CNRS)-Institut de Recherche pour le Développement (IRD [France-Sud])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), and Institut de Recherche pour le Développement (IRD [France-Sud])-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Université Paul-Valéry - Montpellier 3 (UM3)

Subjects
pédogénèse, [SDE] Environmental Sciences, Soil functioning, interaction sol plante, Soil evolution, Resilience, Energy metrics, [SDV]Life Sciences [q-bio], Dual-time-scale, Soil evolution, Soil functioning, Resilience, Soil-plant interactions, Dual-time-scale, Decadal time scale, Energy metrics, [SDV] Life Sciences [q-bio], sol anthropisé, impact anthropique, [SDE]Environmental Sciences, impact environnemental, échelle temporelle, Decadal time scale, ComputingMilieux_MISCELLANEOUS, Soil-plant interactions
Abstract

The objective of this paper is to develop a framework for pedogenetic modelling in the Anthropocene, i.e., the present geological epoch during which humanity has become the main factor impacting the environment. We review the concepts of soil evolution as well as 15 existing quantitative models to determine the features of soil evolution modelling in an Anthropocene context. We emphasise soil-plant interactions by considering the importance of vegetation, both as a provisioning service and as a factor in soil evolution. Our review covers output variables, time scales, spatial representation, model structure, and control variables. Our synthesis in this work demonstrates that the modelling of pedogenesis in the Anthropocene requires the following specific features: (i) a description of the human impact on soil evolution, (ii) outputs related to ecosystem functions and services, (iii) the integration of a dual time scale (decade and cyclic shorter-term), (iv) multiple and interactive processes modelling, (v) the simulation of vegetation and its feedback on soils, and (vi) a representation of spatial heterogeneities, at least at the profile scale. No specific models of soil evolution in the Anthropocene have been developed thus far; however, certain required characteristics have been integrated into existing soil-plant models. Some others features will require further development, particularly a coherent and tested conceptual cornerstone that enables dual-time-scale modelling and is based on the resilience concept and energy metrics. We thus propose a general framework as a conceptual basis from which we can develop models of pedogenesis in the Anthropocene.

Published
2014

24. The vegetation map of France going numerical: a new harmonised national geographical database

Author

Leguedois, Sophie, Party, Jean-Paul, Dupouey, Jean-Luc, Gauquelin, Thierry, Gégout, Jean-Claude, Lecareux, Caroline, Badeau, Vincent, and Probst, Anne

Subjects
carte de végétation, Numerical mapping, Geographical Information System, digitalisation, harmonisation, scan, vegetation series, vector, potential vegetation, France, numérisation
Abstract

In this paper we present the digitalisation of the map of the vegetation of France edited in 64 sheets by the CNRS between 1947 and 1991. The geographical covers and the databases built during this work are gathered in a geographical database called “Base de Données Géographique de la VÉGétation de la France” (BDGveg_FR). The main covers show respectively the vegetation succession stages, as a georeferenced scan, at 1/200,000, and the harmonised map of the potential vegetation, in a vector format, at 1/1,000,000. The harmonised map of the potential vegetation is linked with a national 6-level typology synthesised from the keys of the 64 sheets. The BDGveg_FR is unique because of its period of time, its local and national scales, its exhaustive cover, and its information on the plant associations. Thus, it is actually complementary to the other databases on the French vegetation presently available. It is particularly well appropriate to assess the impact of global changes (e.g. climate, atmospheric pollution) on ecosystem behaviour.

Published
2014

25. A 3D multi-scale virtual structure to model and simulate concurrent processes of soil evolution

Author

Leguedois, Sophie, Marilleau, Nicolas, Cambier, Christophe, Capowiez, Yvan, Cortet, Jérôme, Duponnois, Robin, Perrier, Edith, NOUHOU, Salifou, Schwartz, Christophe, Watteau, Françoise, Blanchart, Eric, Laboratoire Sols et Environnement (LSE), Institut National de la Recherche Agronomique (INRA)-Université de Lorraine (UL), Unité de modélisation mathématique et informatique des systèmes complexes [Bondy] (UMMISCO), Institut de Recherche pour le Développement (IRD)-Université Pierre et Marie Curie - Paris 6 (UPMC)-Université de Yaoundé I-Institut de la francophonie pour l'informatique-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cadi Ayyad [Marrakech] (UCA), Université de Yaoundé I-Institut de la francophonie pour l'informatique-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cadi Ayyad [Marrakech] (UCA)-Sorbonne Université (SU)-Institut de Recherche pour le Développement (IRD [France-Nord]), Unité de recherche Plantes et Systèmes de Culture Horticoles (PSH), Institut National de la Recherche Agronomique (INRA), Laboratoire des symbioses tropicales et méditerranéennes (UMR LSTM), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Université Montpellier 1 (UM1)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Université Montpellier 2 - Sciences et Techniques (UM2)-Université de Montpellier (UM)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Ecologie fonctionnelle et biogéochimie des sols et des agro-écosystèmes (UMR Eco&Sols), Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Université Cadi Ayyad [Marrakech] (UCA)-Universtié Yaoundé 1 [Cameroun]-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Institut de la francophonie pour l'informatique-Université Pierre et Marie Curie - Paris 6 (UPMC), UMI 209 UMMISCO, Institut de Recherche pour le Développement (IRD), Institut National de la Recherche Agronomique (INRA)-Institut de Recherche pour le Développement (IRD)-Centre de Coopération Internationale en Recherche Agronomique pour le Développement (Cirad)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Université Cadi Ayyad [Marrakech] (UCA)-Université de Yaoundé I-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Institut de la francophonie pour l'informatique-Université Pierre et Marie Curie - Paris 6 (UPMC), Institut de Recherche pour le Développement (IRD [France-Nord])-Institut de la francophonie pour l'informatique-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cadi Ayyad [Marrakech] (UCA)-Université de Yaoundé I-Sorbonne Université (SU), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), and Université Pierre et Marie Curie - Paris 6 (UPMC)-Université de Yaoundé I-Institut de la francophonie pour l'informatique-Université Cheikh Anta Diop [Dakar, Sénégal] (UCAD)-Université Gaston Bergé (Saint-Louis, Sénégal)-Université Cadi Ayyad [Marrakech] (UCA)

Subjects
évolution du sol, modèle 3d, [SDV]Life Sciences [q-bio], structure du sol, multiéchelle
Abstract

The evolution of soil structure is one main feature of pedogenesis. Biological processes such as faunal or root bioturbation influence the structure of the soil ecosystem. However the soil biological activity is also largely impacted by the spatial organisation of soil (aggregation, pore connectivity). Simulation-based approach is an interesting way to explore the interactions between an evolving soil structure and bioturbation activity as well as to assess the sustainability of soil systems. Our main objective is to develop a 3D multi-scale model to represent the evolution of soil structure. It is a generic soil structure allowing calibration on various measured data (mineral and organic size distribution, bulk density…) and the choice of the constituting elements (mineral and organic matters, pores, nutriments…). Virtual processes can be introduced in this structure to model soil functioning. Our applied case study concerns soil rehabilitation by soil construction (constructed Technosol). Firstly, this work deals with the representativeness of an existing structure model: the APSF (Arborescent-Pore-Solid-Fractal). It is a discrete pattern-based soil design. The preliminary exploration analysis shows that the calibration of the APSF on size distributions and bulk densities is very sensitive. Comparison with measured data on pore network could allow a better assessment of the parameters. Secondly, we integrated the APSF into a multi-agent system (MAS) in order to model the interactions of soil structure with anecic earthworms. We will present the developed model based on SWORM (Simulated Worm) as well as its first results. Hints to model root growth in MAS are also presented.

Published
2012

26. Rides : ruissellement, infiltration, dynamique des états de surface du sol et transfert des sédiments

Author

Auzet, A.V., Albergel, Jean, Ali, B., Andrieux, Patrick, Armand, R., Augeard, B., Baghdadi, N., Cerdan, Olivier, Corbane, C., Darboux, Frédéric, Esteves, M., Holah, N., Giménez, R., Le Bissonnais, Yves, Leguedois, Sophie, Léonard, J., Nord, Guillaume, Planchon, Olivier, Souchère, Véronique, Tatard, L., Ribolzi, Olivier, Ruy, Stéphane, Vandervaere, J.P., Zribi, Mehrez, Laboratoire d'étude des Interactions Sol - Agrosystème - Hydrosystème (UMR LISAH), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro)-Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro), Unité de recherche Science du Sol (USS), Institut National de la Recherche Agronomique (INRA), Unité d'Agronomie de Laon-Péronne ( LILL LAON AGRO), Biogéochimie et écologie des milieux continentaux (Bioemco), École normale supérieure - Paris (ENS Paris), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), Environnement Méditerranéen et Modélisation des Agro-Hydrosystèmes (EMMAH), Avignon Université (AU)-Institut National de Recherche pour l’Agriculture, l’Alimentation et l’Environnement (INRAE), École normale supérieure - Paris (ENS-PSL), Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Université Pierre et Marie Curie - Paris 6 (UPMC)-AgroParisTech-Centre National de la Recherche Scientifique (CNRS), Institut de Mécanique des Fluides et des Solides (IMFS), École Nationale du Génie de l'Eau et de l'Environnement de Strasbourg (ENGEES)-Centre National de la Recherche Scientifique (CNRS), Institut de Recherche pour le Développement (IRD)-Institut National de la Recherche Agronomique (INRA)-Centre international d'études supérieures en sciences agronomiques (Montpellier SupAgro)-Institut de Recherche pour le Développement (IRD [ Madagascar])-Institut national d’études supérieures agronomiques de Montpellier (Montpellier SupAgro), Hydrosystèmes et Bioprocédés (UR HBAN), Centre national du machinisme agricole, du génie rural, des eaux et forêts (CEMAGREF), Bureau de Recherches Géologiques et Minières (BRGM) (BRGM), Observatoire Région de Santé Midi-Pyrénées (CREAI-ORS Occitanie), Laboratoire d'étude des transferts en hydrologie et environnement (LTHE), Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique de Grenoble (INPG)-Institut national des sciences de l'Univers (INSU - CNRS)-Université Joseph Fourier - Grenoble 1 (UJF)-Observatoire des Sciences de l'Univers de Grenoble [1985-2015] (OSUG [1985-2015]), Université Joseph Fourier - Grenoble 1 (UJF)-Institut polytechnique de Grenoble - Grenoble Institute of Technology [2007-2019] (Grenoble INP [2007-2019])-Institut national des sciences de l'Univers (INSU - CNRS)-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS)-Institut polytechnique de Grenoble - Grenoble Institute of Technology [2007-2019] (Grenoble INP [2007-2019])-Institut national de recherche en sciences et technologies pour l'environnement et l'agriculture (IRSTEA)-Université Savoie Mont Blanc (USMB [Université de Savoie] [Université de Chambéry])-Centre National de la Recherche Scientifique (CNRS), Centre National de la Recherche Scientifique (CNRS), and Institut de Recherche pour le Développement (IRD)

Subjects
[SDV]Life Sciences [q-bio], [SDE]Environmental Sciences, PROGRAMME RIDES, ComputingMilieux_MISCELLANEOUS
Abstract

* INRA Centre d'Avignon, Documentation, Domaine St Paul, Site Agroparc, 84914 Avignon cedex 9 Diffusion du document : INRA Centre d'Avignon, Documentation, Domaine St Paul, Site Agroparc, 84914 Avignon cedex 9; International audience

Published
2005

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