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Communication Dans Un Congrès Année : 2021

Use of archives and historical maps to analyse landscape evolution with spatial indicators

Résumé

essential to provide a suitable management, even restoration, of these natural spaces. In this work, current situation of natural landscapes of coastal protected wetlands are clarified through a geo-historical approach. It aims to identify pace of changes (permanence, inertia, forced trajectories, etc.) by spatial configurations (Jacob-Rousseau, 2009) in order to show the way coastal wetland landscapes have been jointly developed by nature and culture, until present time. Archives and historical maps represent the baseline of this approach. Where it is difficult to find records at local scales, some of the national surveyed maps during the XIXe century can be used to analyse past landscapes. Napoleonic cadastre plan is precise enough to be geo-referenced and digitized, which provides land-cover and land-use data of the XIXe century (Franchomme et Schmitt, 2012). Archives database are unequal according to studied areas. Methodological possibilities using old maps and records are discussed in order to analyse landscape evolution of two protected coastal wetlands formerly modified (Penfoulic ponds and Corsept marshes, France). In this work, XVIIe to XXIe maps are used to underline “switching areas” of natural spaces on a wide scale; and Napoleonic cadastre plan and Coumes 1850 map are used to show and localise landscape changes with GIS software on a smaller scale. First results on landscape evolution of coastal wetlands are presented, based on methods described above.
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Dates et versions

hal-04031628 , version 1 (16-03-2023)

Identifiants

  • HAL Id : hal-04031628 , version 1

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Véronique Beaujouan, Léa Paly, Nathalie Carcaud. Use of archives and historical maps to analyse landscape evolution with spatial indicators: Application on two French coastal wetlands. Historical Ecology For the Future 2021, May 2021, Metz, France. ⟨hal-04031628⟩
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