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Évaluation des effets de la pression urbaine sur la qualité des sols de la région Île-de-France sous deux types de végétations (pelouses et bois)

Abstract : In a world where more than half of the world's population lives in cities, green spaces are a fundamental component of the urban landscape, providing many environmental services (e.g. air and water purification, wind and noise filtering, urban heat island attenuation), but also social and psychological services (e.g. development of social bonds, stress reduction) which are of crucial importance for the habitability of modern cities and the well-being of urban dwellers. The effectiveness of ecological services provided by green areas in the city depends on the quality of their soils and their general functioning, but also on the abiotic and biotic conditions in which they are located. Numerous studies have highlighted the direct and indirect impact of human activities on urban soils. The anthropogenic pressures they undergo alter their characteristics in a complex way, thus affecting their quality. Urban soil quality is therefore a major challenge for the sustainability of the cities of tomorrow. This thesis project sought to assess the urban pressure effects on the soil quality components of the Paris region public green spaces through the use of an innovative urban pressure gradient, and according to two land-use types (lawns and woods). Secondly, this work also sought to determine whether differential scanning calorimetry coupled with evolved gaz analyzer (DSC–EGA) was a suitable method for assessing the organic matter of urban soils (SOM), and on a regional scale. All soils selected in this thesis project are classified as Anthrosol...
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Ludovic Foti. Évaluation des effets de la pression urbaine sur la qualité des sols de la région Île-de-France sous deux types de végétations (pelouses et bois). Ecologie, Environnement. Université Pierre et Marie Curie - Paris VI, 2017. Français. ⟨NNT : 2017PA066481⟩. ⟨tel-02393689⟩

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