source de la durance

The river itself becomes steeply banked by terraces, and carves a channel, sometimes a few metres deep, sometimes tens of metres deep. This quality was obtained thanks to actions of clean-up projects on the river itself and on the tributaries of the Luye and Calavon (also called le Coulon)). [38] As the ice-cap receded, the Durance course changed towards the west, between Luberon and Alpilles, and flowed into the Rhône.[38]. Elle prend sa source sur le mont Chenaillet (2634 m), dans les Hautes-Alpes (05), près de la frontière italienne, et se jette dans le Rhône à quelques kilomètres au sud d’Avignon, dans le … Durant l'AntiquitĂŠ, la riviĂ¨re (parfois assimilĂŠe Ă un fleuve) ĂŠtait rĂŠputĂŠe pour ĂŞtre difficilement franchissable en raison de ses eaux tumultueuses et de la largeur de son lit. Three types of islands are formed in the bed of the Durance: Between the Vaucluse and the Bouches-du-Rhône : Dams have been built since the Middle Ages to prevent flooding. It sometimes needed several ferries to cross the various arms or channels. From Antiquity until the 19th century, the Durance was famous for the difficulty of crossing it, its massive floods and an inconstant flow. L'ensemble constitue un dĂŠbit jusqu'Ă dix fois infĂŠrieur au dĂŠbit estival (d'ĂŠtiage) antĂŠrieur Ă la mise en eau de Serre-PonĂ§on. From 1839 to 1854, the engineer Franz Mayor de Montricher built a canal to supply the city of Marseille with drinking water. Direction of the environment, of sustainable development and agriculture. Source de la Durance (Randonnée Pédestre) En cache. C'est dans le Briançonnais, à Montgenèvre, que la Durance prend sa source. La Durance fournit 75% de l'eau consommée en PACA. Dans le lit naturel, il reste aujourd'hui les rejets des canaux d'irrigation secondaires Ă vocation agricole (leur alimentation est faite par le canal E.D.F. [13], The height of the water at the gorge at Cadarache is at 472 millimetres (18.6 in), after an average of 750 millimetres (30 in) of rain because 63% of the rain flows into the Durance. Montgenèvre fait partie des plus anciennes stations de ski de France. La Durance prend sa source à 2 390 mètres d'altitude, au pré de Gondran, sur les pentes du sommet des Anges . Les plus anciennes traces d'occupation humaine le long de la Durance sont au confluent de la BlĂŠone (grotte de l'Escale) et datent du PalĂŠolithique supĂŠrieur. Il n’y a pas à proprement parler une source de la Durance. The valley widens still further into an alluvial plain several kilometres wide (5 kilometres (3.1 mi) near Manosque). The traditional forms are probably derivatives of *Dūrantia, based on the Celtic "dour" (water) and suffix "ant" (stream). Beginning in the 1950s, aggregate was extracted from the river bed for road surfacing and wear-resistant concrete. It can vary between 40 cubic metres per second (1,400 cu ft/s) (the most severe low water levels) and 6,000 cubic metres per second (210,000 cu ft/s) in catastrophic historic floods,[12] levels reached in 1843, 1882 and 1886. Catherine Lonchambon, “From one bank to another: the “trail ferry””, Direction of the environment, of sustainable development and agriculture. Christophe Garrone, “the artificial wetlands basic Durance”, Direction of the environment, of sustainable development and agriculture. There remain some black spots in the valley (downstream from the Arkema factory at Château-Arnoux, below the confluence with the Calavon.[31]. The water was first abstracted near the bridge of Pertuis, at an elevation of 185 metres (607 ft), 50 kilometres (31 mi) from Marseilles. Sources de la Durance. Ainsi, en plus de traiter les demandes de nos clients, les informations nous aident à améliorer le contenu de notre site, et à développer de nouveaux produits et services. A service to monitor the river was created, the Service spécial de la Durance, in order to study the hydrology of the river, using the kilometre-long divisions from 1868 between the confluence with the Verdon with that with the Rhône. at Mirabeau, the beginning of the 13th century, close to Sainte-Madeleine-du-Pont; at Savines, the most used bridge on the Upper Durance (built in the 15th century). There were only 10 raftmen remaining in 1896 and only one in 1908.[44]. Currently there are between 150 and 200 species of benthic macroinvertebrates,[30] but with few plant species (due to the greatly changing flow of the river). [20], In the 20th century, the floods were less frequent and violent thanks to the dams and the re-afforestation in the Durance basin, but there were still serious floods in 1957 and 1994 with maxima measured at Mirabeau and at Sisteron of 2,800 cubic metres per second (99,000 cu ft/s); and this volume was increased at the confluence with the Verdon by a further 500 cubic metres per second (18,000 cu ft/s). L'ouvrage le plus important issu de ces travaux est le barrage hydroĂŠlectrique de Serre-PonĂ§on (1961), dont la retenue homonyme constitue le plus grand lac artificiel d'Europe. Rivière dite « capricieuse », autrefo… The sources of the water are a combination of melting snow and the drainage of rain from the surrounding hills and plateaux which have a Mediterranean climate. [14], These increased in number and force from the second half of the 16th century, though lessened in the 20th century. The latter's tributaries bring rain water mainly in spring, autumn and winter but little during the summer. [46] Nevertheless, the ferry services were scarcer than on the Rhône with a ferry every 9 to 11 kilometres (5.6 to 6.8 mi) on average, versus every 5.2 kilometres (3.2 mi) on the Rhône. Son embouchure dans le Rhône se trouve à Avignon, préfecture du Vaucluse. Its source is in the south-western Alps, in Montgenèvre ski resort near Briançon and it flows south-west through the following departments and cities: The Durance's largest tributary is the Verdon. Durant la mĂŞme pĂŠriode, d'importants travaux d'endiguement furent d'abord motivĂŠs par la nĂŠcessitĂŠ de mettre un terme aux dĂŠgats provoquĂŠs par les crues rĂŠcurrentes de la riviĂ¨re : ainsi, un proverbe d'Ancien RĂŠgime citait la Durance parmi les trois flĂŠaux de la Provence. Vitesse Denivelé horaire Puissance. Formation gĂŠologique, hydrologie et amĂŠnagement, 4. La moyenne et basse Durance forme encore un ÂŤ lit en tresses Âť, constituĂŠ de bras multiples, vivants ou morts : ce dernier s'explique par les importantes variations passĂŠes de dĂŠbit. Its descent is unusually rapid at 81 m/km (165 ft/mi) in its first 12 km (7.5 mi), then 15 m/km (30 ft/mi) to its confluence with the Gyronde, and then still nearly 8 m/km (16 ft/mi) to the confluence with the Ubaye. Les sources se trouvent en contrebas de l’ancien fort du Gondran, sur la commune de Montgenèvre , dans le département français des Hautes-Alpes, près de la frontière italienne. Plus grand barrage d'Europe avec une hauteur de 120 mĂ¨tres et une basse de 600 mĂ¨tres d'ĂŠpaisseur, Serre-PonĂ§on utilise son propre poids pour rĂŠsister Ă une partie de la pression. Ainsi, en plus de traiter les demandes de nos clients, les informations nous aident à améliorer le contenu de notre site, et à développer de nouveaux produits et services. In its middle and lower reaches the Durance is affected by the Mediterranean climate: flooding after autumnal rains, with low water levels in summer. The predictable water levels have also allowed development of the local economy through summer tourism. La plus importante rivière de Provence, la Durance, y prend sa source à 2390 mètres d'altitude sur les pentes du sommet des Anges, au pré de Gondran. D'une longueur totale de 323,8 kilomètres, la Durance est la plus importante rivière de Provence. The Durance played a very important part in the history of Provence, and largely contributed to the economic growth and population of the Marseilles area, after having been an obstacle for centuries. La fontaine pétrifiante de Réotier se situe dans le département des Hautes-Alpes, dans la commune de Réotier, entre Guillestre et Briançon, à 910 m d'altitude environ. The Verdon flows into the Durance near Cadarache. The source of La Durance is on the northern slope of the Sommet des Anges, where the first small streams combine into a river. The Durance is documented in Ancient Greek as drouentios potamos and in Latin as Druentia (1st century), Durantia (854, 1271) and Durentia (1127). Accès professionnels : Espace Presse - … The existence of a bridge at Sisteron was recorded. The major part of the flow was diverted into canals downstream from Serre-Ponçon, and the flow in the river's natural bed is a minimal flow of 2 to 5 cubic metres per second (71 to 177 cu ft/s), which is only 1/40 of its natural flow. The Durance (Durença in Occitan or Durènço in Mistralian) is a major river in south-eastern France. The Durance retains its name rather than either the Clarée or Guisane, even though the latter two are longer than the Durance when they each merge. This descent stays re… La faune s'est quant Ă elle dĂŠveloppĂŠe durant les derniĂ¨res dĂŠcennies : en particulier, plus de 300 espĂ¨ces diffĂŠrentes d'oiseaux peuplent la Durance, soit en permanence (un peu moins de la moitiĂŠ), soit lors de migrations saisonniĂ¨res. Following the construction of the large EDF canal, which follows the Durance from Serre-Ponçon until Salon-de-Provence and the Étang de Berre, the water for the canal of Marseilles is now taken from the EDF canal, below Saint-Estève-Janson. Consequently, it is classified as a Natura 2000 protected area. At Cadarache an experimental nuclear fusion reactor, ITER, is under construction. Hydroelectric installations and chains of locks on the Durance, and its tributaries the Verdon, Buëch and Bléone had the most significant economic impacts and are the most visible change in the landscape. D' Espinasses à Venterol, c'est aussi le berceau de la Route des Fruits et des Vins. Average monthly discharge (m 3 /s) at Saint-Paul-lès-Durance Course [ change | change source ] The Durance starts in the pré de Gondran (" meadow of Gondran"), on the east side of the Sommet des Anges mountain , in the commune of Montgenèvre (a ski resort near Briançon ), Hautes-Alpes department, at an elevation of about 2,325 m (7,628 ft). Clébert & Rouyer, "La Durance", pp.11-12. La Durance dont la source se situe sur la commune de Cervières (05100) a une longueur de 323.5 Km en France et se termine sur la commune de Les Angles (30133). [47] Starting from the 12th century, wood bridges were also built. At first they were often boxes of wood filled up of stones, but these do not resist the floods for long. For some families of birds the number of individuals also increased. [32], The populations of algae and water plants (100 species on average) and water invertebrates (77 species) are more varied than before the dams compared with populations on the similar Asse and Buëch. It is 80 kilometres (50 mi) long with 17 kilometres (11 mi) underground. 75 espĂ¨ces de mammifĂ¨res sont connues, parmi lesquelles les castors et les musaraignes aquatiques ont ĂŠtĂŠ rejoints rĂŠcemment par le rat musquĂŠ, espĂ¨ce allogĂ¨ne. Cecile Miramont, "History of river landscapes", in Guy Barruol, Denis Furestier, Catherine Lonchambon. Just before the narrow gap in the mountains at Sisteron, the Durance joins Buëch and the Sasse. La Durance, une sp cialiste du coup ! "Fiche cours d'eau - La Durance (X---0000)", "Ministry of theEcology and of sustainable development", Photos that are copyright free for teaching use (3 pages on the Durance), Mixed syndicate working on the valley of the Durance, https://en.wikipedia.org/w/index.php?title=Durance&oldid=979844221, Pages using citations with format and no URL, Articles with dead external links from September 2017, Articles with permanently dead external links, Articles with unsourced statements from June 2008, Creative Commons Attribution-ShareAlike License. Lorsque la Durance change son cours pour devenir un affluent du Rhône , elle se jette d’abord dans le Rhône en amont d ‘Avignon , au nord du Rocher des Doms . From the 12th to the 19th century, the river was used for floating timber downstream, in particular by the monks of Boscodon, who were given the privilege in 1191 to use the river. Some of the water diverted by the dams is used for irrigation. The banks, although less wet, still accommodate 110 species of birds during the year, plus 82 species of migratory birds, which rest, feed and sometime reproduce.

Quelques Minutes Après Minuit Résumé Complet, Projet Grand Lyon, Composition De L Assemblée Générale, Michel Houellebecq Lecture, Conseillère Thermomix Belgique,