Les images satellites Spot multi-dates et la métrique spatiale dans l’étude du changement urbain et suburbain – Le cas de la basse vallée de la Bruche (Bas-Rhin, France)
The study of urban and peri-urban change represents a major challenge for local authorities, especially in areas at risk (ex. flood) and representing an ecological potential. The Bruche lower valley (Bas-Rhin, France) is increasingly urbanized under pressure from Strasbourg. The monitoring of the se...
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| Main Authors: | , , |
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| Format: | Article |
| Language: | deu |
| Published: |
Unité Mixte de Recherche 8504 Géographie-cités
2009-03-01
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| Series: | Cybergeo |
| Subjects: | |
| Online Access: | https://journals.openedition.org/cybergeo/21995 |
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| Summary: | The study of urban and peri-urban change represents a major challenge for local authorities, especially in areas at risk (ex. flood) and representing an ecological potential. The Bruche lower valley (Bas-Rhin, France) is increasingly urbanized under pressure from Strasbourg. The monitoring of the settlement process was achieved over a period of 20 years to identify the phases of urbanization and their consequences. The multi-temporal remote sensing images of Spot acquired in 1986, 1996 and 2005 and "spatial metric" were jointly used to identify the main forms of evolution of land-cover during this period and to characterize the landscape changes. The results highlight a trend of increasing density and sprawl process in the valley accompanied by a significant change of the landscape structure. The paper is structured in four sections. First, related works on monitoring of land-use/cover are exposed. Second, image processing are presented and the application of various landscape metrics. Third, the description of results is detailed. Finally, conclusion and perspective approaches are discussed. |
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| ISSN: | 1278-3366 |