Plant landscape and models of French Atlantic estuarine systems

Abstract : Estuaries generally include a wide mosaic of natural and semi-natural habitats. The objective of this thesis is to study the vegetation and Plant Landscape of French Atlantic estuarine Systems, trying to understand the functioning and the plant distribution patterns. The present study tries to carry out a theoretical common model of functioning and ecological gradients, in order to make a basis to improve their classification and ecological studies, and to Help the monitoring and assessment of land uses, land forms transformation and human impacts : developping a spatio-temporal predictive model based on actual and potential vegetation, using the dynamico-catenal approach.The study area corresponds to the Atlantic French estuaries. In 8 selected estuaries, we undertook fieldworks for a total of 98315 ha, highlighting 2 vegetation series and 4 geopermaseries, corresponding to 131 plant associations, 60 alliances, 43 ordos and 28 classes. We mapped the vegetation of three representative estuaries for a total of 74433 ha. A synthetic scheme of estuary vegetation landscape is proposed, integrating geographical and ecological gradients as well as geomorphologic forms.
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Kevin Cianfaglione. Plant landscape and models of French Atlantic estuarine systems. Environmental studies. Université de Bretagne occidentale - Brest; Università degli Studi di Camerino (Italie), 2018. English. ⟨NNT : 2018BRES0092⟩. ⟨tel-02155685⟩

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