Dynamique des communautés biologiques dans un contexte de restauration par injection sédimentaire et érosion maitrisée : cas du Vieux Rhin, France

Abstract : The Rhine River has undergone major engineering works that led to severe alterations which helped to alter the biodiversity of the entire floodplain. Restoration actions have been initiated to give it back a part of its natural hydro morphological functioning. The thesis consisted in evaluating the effects of these restorations and in highlighting the mechanisms and processes involved in biocoenosis changes of the restored environments. The results also showed that the post-restoration biological community is not only defined by post-restoration physical changes but also by the discrete influence of external determinants of restoration such as biological invasions or the internal dynamics of the river. The transitional aspect of the benefits incurred has been identified as the main limit of the gravel augmentation, while the implementation of transverse artificial groynes in the controlled bank erosion has proved to be factors of sustainability of the ecological effects.
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Cybill Staentzel. Dynamique des communautés biologiques dans un contexte de restauration par injection sédimentaire et érosion maitrisée : cas du Vieux Rhin, France. Biodiversité et Ecologie. Université de Strasbourg, 2018. Français. ⟨NNT : 2018STRAH004⟩. ⟨tel-02140228⟩

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