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Habilitation à diriger des recherches

QUANTIFIER LES PÉDOGENÈSES ANTHROPIQUES : UN OUTIL POUR LA GESTION DURABLE DES SOLS

Abstract : Soils are highly dynamic systems that evolve permanently as a result of various biological, physical and chemical processes. The impact of global change on these processes and on the resulting contemporaneous evolution of soils is however largely ignored. In order to provide the knowledges necessary for the long term management of the soil resource, I have developed a research project aimed at quantifying soil evolution under anthropic driving forces at decadal to centennial time scales. This project, encompassing the quantification of bioturbation, argilluviation, and redox processes, relies on an original approach based on i) image analysis to quantify the amount of the process-specific pedological features and ii) the building of anthropo-chrono-sequences to isolate the impact of anthropic driving forces over well-known time periods. I demonstrate that anthropic driving forces induce irreversible, significant, and rapid soil changes. The essential stake of the coming years will consist of making the status of contemporary soil changes under anthropic constraints evolve from potential threat to concrete opportunity, either to mitigate climate change or to optimize the functions, services, and benefits that soils offer to ensure the well-being of human populations.
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Habilitation à diriger des recherches
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https://hal-agroparistech.archives-ouvertes.fr/tel-03204585
Contributor : David Montagne <>
Submitted on : Wednesday, April 21, 2021 - 4:27:30 PM
Last modification on : Tuesday, June 15, 2021 - 2:57:10 PM
Long-term archiving on: : Thursday, July 22, 2021 - 6:58:22 PM

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David Montagne. QUANTIFIER LES PÉDOGENÈSES ANTHROPIQUES : UN OUTIL POUR LA GESTION DURABLE DES SOLS. Science des sols. Université Paris-Saclay, 2020. ⟨tel-03204585⟩

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