| Titre | L'évolution du profil en long d'un cours d'eau navigable sous l'effet des aménagements, la grande Saône du début du XIXe s. à aujourd'hui. / The effects of development works on the long profile of a navigable waterway : the Grande Saône from the beginning of the XIXth century until the present day. | |
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| Auteur | Annie Dumont, Laurent Astrade | |
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Revue | Géocarrefour |
| Numéro | volume 75, no 4, 2000 L'interface nature-sociétés dans les hydrosystèmes fluviaux | |
| Page | 317-326 | |
| Résumé anglais |
The aim of this article is to show the effects of works on the long profile of a waterway. From Verdun-sur- le-Doubs to Lyon, the Grande Saône's morphological characteristics (gentle slope, succession of shoals) and the nature of river flow (loading floods and significant low water levels) have a particularly constraining effect on navigation. This explains the importance of human action over more than two centuries to correct the river's natural bed. With the aid of archival documents, it is possible to calculate the longitudinal development of the talweg and water levels between 1869 and 1989. Important modifications have been caused by embankments, the creation of stillwater reaches and the excavation of a navigable channel. This has resulted in a stepped waterway and the significant deepening of the channel (4,5 m on average), especially where gravels have been extracted. Source : Éditeur (via Persée) |
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| Article en ligne | http://www.persee.fr/web/revues/home/prescript/article/geoca_1627-4873_2000_num_75_4_2483 |
