Mieux connaître la pédogenèse et le fonctionnement des Technosols pour optimiser les services écosystémiques rendus

Abstract : This work focuses on strongly anthropized soils – Technosols – and presents some thoughts about their contribution to address the societal issues of urban and industrial areas. It starts with an introduction and a literature review on the soil anthropization dynamics, the specific features in terms of composition, functioning and evolution of Technosols and outlines the researches about the ecosystem services they could provide. Then five distinct questions are tackled. The first one is about pedological engineering and more specifically about how to construct functional soils with by-products to revegetate and reclaim derelict lands. The second one focuses on the way such constructed Technosols can fulfill functions of biomass production, filter/exchange, carbon storage and biodiversity habitat. The third question deals with the pedogenesis of constructed soils by presenting results about soil structure dynamics in relation with their hydraulic properties, minerals weathering, transfer of particles and the impact of such processes on the ecosystem functions they can provide. The forth addresses the development of a methodology to assess the ecosystem services provided by the Technosols and lays the basis for a decision support tool dedicated to urban planning. At last, the research project is evocated through different axis that shall all contribute to an optimization of the level of ecosystem services provided by the soils from strongly anthropized areas.
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https://hal.univ-lorraine.fr/tel-01785605
Contributor : Geoffroy Sere <>
Submitted on : Friday, May 4, 2018 - 2:31:04 PM
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Geoffroy Séré. Mieux connaître la pédogenèse et le fonctionnement des Technosols pour optimiser les services écosystémiques rendus . Sciences de l'environnement. Université de Lorraine, 34 cours Léopold, 54000 Nancy, 2018. ⟨tel-01785605⟩

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