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The millrace of the Moulin Blonde at Frévent, south of St. Pol
Étaples - The Canche estuary
Shelduck on the estuary
[edit] Tags:Frévent,Étaples,Estuary,Shelduck, | |
| History | |
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The valley of the Canche has been occupied by man since ancient times because of the productive nature of the land. The unhealthy aspect of marshland means much has been done over the centuries to drain the land efficiently, which has brought about the partial destruction of its original character. The principal activities of the village communities occupying the valley and its surrounds have been (and still are) farming, fishing and reed harvesting. [1] The extraction of peat from the marshes of the lower river was known in the 16th century; peat being the principal means of heating and also a multi-purpose fertilizer[1]. The alder tree, which grew well in the local marshy soils, contributed to bind the ground, and of course, it furnishing timber for many purposes. It was realized that forestry also helped in drainage. Further developments in the 18th century saw permanent enclosures with animals being fenced-in, keeping them off the crops, and property boundaries by the planting of hedges and the digging of ditches, contributing to organized and cooperative farming methods. The 18th century also saw the emergence of new perceptions of marshland, long considered as unhealthy places in which to live. Administrative authorities encouraged action to recover the peat marshes by drainage work and the planting of more trees. The reduction of marshland again allowed for even more areas of cultivation to feed the increasing population. During the 19th century, technical progress (for example, the replacement of windmills by steam engines) led to further improvements in drainage, contributing to the drying-up of the valley downstream as far as Hesdin). It wasn’t until the last quarter of the 20th century that authorities became aware of the importance of the marshes and started trying to preserve them, having earlier contributed to their disappearance. The Canche and its valley have been incorporated into a national natural reserve since 1987. [2]).
[edit] Tags:Origin,Marshes,Hesdin,Reed,Peat,Alder,Forestry,Drainage,Windmills,Steam Engines, | |
| Environmental issues | |
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The Canche estuary was the first site in northern France where a conservation victory, in respect of the coast, was first achieved, in 1976. Plans had been made to put in place an earlier project, dating from the 1960s, to create an articial environment on the estuary. The work included creating a harbour and a marina. This was supposed to be “compensation” for extracting the waters of the Canche at Hesdin in order to supply the city of Lille. Of course, this threatened to destroy the rich wildlife and flora of the estuary. The mobilisation of the local inhabitants, various associations and many scientists, after many public enquiries and heated arguments, stopped the plans and left the estuary to nature. [3].
[edit] Tags:France,Lille, | |
| Flora and fauna | |
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With sandbars and spits, the estuary of the Canche is typical of the estuaries of this region of France. The coastal dunes, marshes and valley are home to 485 different plants and a diverse range of wildlife. 75 varieties of resident and migratory birds nest in and around the estuary and valley, such as the nightjar, woodlark, several types of warblers, snipe, oyster catchers (using rabbit-holes as homes) and the predatory merlin and buzzard. This area shelters mammals such as deer, wild boar, foxes, badgers, stoats, squirrels, rabbits and the occasional seal, but, in contrast to the bay of the Somme, the estuary of the Canche does not seem to possess a seal colony. Numerous amphibians (Common toads, newts and frogs) are found in and along the river.[2].
[edit] Tags:Somme,Sandbars,Nightjar,Woodlark,Warblers,Snipe,Oyster Catchers,Merlin,Buzzard,Deer,Wild Boar,Foxes,Badgers,Stoats,Squirrels, | |
| External links | |
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Site de l'Agence de l'eau Bassin Artois-Picardie (French)
Site personnel SAGE de la Canche (French)
Tourisme dans la vallée de la Canche (French)
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| References | |
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^ a b Helga Scarwell et Magalie Franchomme, Autour des zones humides : espaces productifs d'hier et conflits d'aujourd'hui, La revue en sciences de l'environnement: Vertigo, 1 mai 2005. Read online
^ a b The estuary of the Canche on the website of the conservation of the coast
^ The barrage project on the Fédération Nord-Nature website.
This article is derived from the French Wikipédia.
Carte Géologique de la France à l'échelle du millionième 6th edn. BRGM (2003) ISBN 2-7159-2158-6
Wikimedia Commons has media related to: Canche
Retrieved from "http://en.wikipedia.org/w/index.php?title=Canche&oldid=472610198"
Categories: Rivers of FranceGeography of the Pas-de-CalaisRivers of Nord-Pas-de-CalaisHidden categories: Articles with French language external links
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