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River Canche
The river Canche (; ) is one of the rivers that flow from the plateau of southern Boulonnais and Picardy, into the English Channel, of which the Somme is the largest example. It is long. The basin of the Canche extends to and lies in the south of the département of Pas-de-Calais. Forming an alluvial valley from wide, the Canche valley also contains marshes, meadows and small woods. The gentle gradient, averaging 1.5 percent, gives the river a meandering course. The river rises at Gouy-en-Ternois and passes Frévent, Hesdin, and Montreuil-sur-Mer before leaving the chalk to flow to the coast between Étaples and Le Touquet-Paris-Plage. Its principal tributaries are the Ternoise, the Planquette, the Créquoise, the Bras de Bronne, the Course, the Dordogne (not to be confused with the Dordogne) and the Huitrepin which all join on its right bank, i.e. to the north of the Canche. The lie of the land means there is no notable tributary from the south until the Grande Tringu ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Pas-de-Calais
The Pas-de-Calais (, ' strait of Calais'; ; ) is a department in northern France named after the French designation of the Strait of Dover, which it borders. It has the most communes of all the departments of France, with 890, and is the 8th most populous. It had a population of 1,465,278 in 2019.Populations légales 2019: 62 Pas-de-Calais INSEE The Calais Passage connects to the Port of Calais on the . The Pas-de-Calais borders the departments of [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Montreuil-sur-Mer
Montreuil-sur-Mer (; or ; ), Montreuil-on-the-Sea, is a subprefecture in the Pas-de-Calais Department in northern France. Though commonly called by this name since at least the twelfth century, it was legally known as Montreuil until 31 December 2022. It is located on the Canche river, not far from Étaples. The sea, however, is now some distance away. Montreuil-sur-Mer station has rail connections to Arras and Étaples. History Montreuil-sur-Mer is surrounded by notable brickwork ramparts, constructed after the destruction of the town by troops of Habsburg emperor Charles V in June 1537. These fortifications pre-date the extensive fortification of towns in northern France by Sébastien Le Prestre de Vauban in the 17th century. Montreuil-sur-Mer was the headquarters of the British Army in France during the First World War from March 1916 until it closed in April 1919. The military academy there provided excellent facilities for GHQ. Montreuil-sur-Mer was chosen as GHQ ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Peat
Peat is an accumulation of partially Decomposition, decayed vegetation or organic matter. It is unique to natural areas called peatlands, bogs, mires, Moorland, moors, or muskegs. ''Sphagnum'' moss, also called peat moss, is one of the most common components in peat, although many other plants can contribute. The biological features of sphagnum mosses act to create a habitat aiding peat formation, a phenomenon termed 'habitat manipulation'. Soils consisting primarily of peat are known as histosols. Peat forms in wetland conditions, where flooding or stagnant water obstructs the flow of oxygen from the atmosphere, slowing the rate of decomposition. Peat properties such as organic matter content and saturated hydraulic conductivity can exhibit high spatial heterogeneity. Peatlands, particularly bogs, are the primary source of peat; although less common, other wetlands, including fens, pocosins and peat swamp forests, also deposit peat. Landscapes covered in peat are home to sp ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Reed Bed
A reedbed or reed bed is a natural habitat found in floodplains, waterlogged depressions and estuaries. Reedbeds are part of a succession from young reeds colonising open water or wet ground through a gradation of increasingly dry ground. As reedbeds age, they build up a considerable litter layer that eventually rises above the water level and that ultimately provides opportunities in the form of new areas for larger terrestrial plants such as shrubs and trees to colonise. Artificial reedbeds are used to remove pollutants from greywater, and are also called constructed wetlands. Types Reedbeds vary in the species that they can support, depending upon water levels within the wetland system, climate, seasonal variations, and the nutrient status and salinity of the water. ''Reed swamps'' have 20 cm or more of surface water during the summer and often have high invertebrate and bird species use. ''Reed fens'' have water levels at or below the surface during the summer and are ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Estuary
An estuary is a partially enclosed coastal body of brackish water with one or more rivers or streams flowing into it, and with a free connection to the open sea. Estuaries form a transition zone between river environments and maritime environments and are an example of an ecotone. Estuaries are subject both to marine influences such as tides, waves, and the influx of saline water, and to fluvial influences such as flows of freshwater and sediment. The mixing of seawater and freshwater provides high levels of nutrients both in the water column and in sediment, making estuaries among the most productive natural habitats in the world. Most existing estuaries formed during the Holocene epoch with the flooding of river-eroded or glacially scoured valleys when the sea level began to rise about 10,000–12,000 years ago. Estuaries are typically classified according to their geomorphological features or to water-circulation patterns. They can have many different names, such as ba ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grande Tringue
Grande means "large" or "great" in many of the Romance languages. It may also refer to: Places *Grande, Germany, a municipality in Germany * Grande Communications, a telecommunications firm based in Texas *Grande-Rivière (other) *Arroio Grande (other) *Boca grande (other) *Campo Grande (other) *El Grande, a German-style board game *Loma Grande (other) *Lucida Grande, a humanist sans-serif typeface *María Grande, a village and municipality in Entre Ríos Province in northeastern Argentina *Mojón Grande, a village and municipality in Misiones Province in northeastern Argentina * Playa Grande (other) *Ribeira Grande (other) * Rio Grande (other) *Salto Grande (other) *Valle Grande (other) *Várzea Grande (other) *Villa Grande (other) *Casa Grande Ruins National Monument *Casas Grandes *Mesa Grande *Pueblo Grande de Nevada *Pueblo Grande Ruin and Irrigation Sites *Campina Gran ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tributary
A tributary, or an ''affluent'', is a stream or river that flows into a larger stream (''main stem'' or ''"parent"''), river, or a lake. A tributary does not flow directly into a sea or ocean. Tributaries, and the main stem river into which they flow, drain the surrounding drainage basin of its surface water and groundwater, leading the water out into an ocean, another river, or into an endorheic basin. The Irtysh is a chief tributary of the Ob (river), Ob river and is also the longest tributary river in the world with a length of . The Madeira River is the largest tributary river by volume in the world with an average discharge of . A confluence, where two or more bodies of water meet, usually refers to the joining of tributaries. The opposite to a tributary is a distributary, a river or stream that branches off from and flows away from the main stream. [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Dordogne
Dordogne ( , or ; ; ) is a large rural departments of France, department in south west France, with its Prefectures in France, prefecture in Périgueux. Located in the Nouvelle-Aquitaine region roughly half-way between the Loire Valley and the Pyrenees, it is named after the river Dordogne (river), Dordogne, which runs through it. It corresponds roughly to the ancient county of Périgord. In January 2023, Dordogne had a population of 412,807. History The county of Périgord dates back to when the area was inhabited by ancient celtic Gauls, Gaulish tribes. It was originally home to four tribes, and since "four tribes" in the Gaulish language is "Petrocore", the area eventually became known as the county of Le Périgord. Its inhabitants became known as the Périgordins (or Périgourdins), and there are four Périgords in the Dordogne. * Périgord Vert (Green Périgord), with its main town of Nontron, consists of verdant valleys in a region crossed by many rivers and streams ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Bras De Bronne
The Bras de Bronne (; sometimes spelled ''Bras de Brosne'') is a small river in northern France whose course crosses the departement of the Pas-de-Calais. Its source is at the hamlet of Etreuille, near the village of Saint-Michel-sous-Bois. It flows through the communes of Humbert, Sempy, Aix-en-Issart, Marant, Marenla and joins the river Canche at Marles-sur-Canche. In winter, it is fed by an even smaller river at the commune of Quilen. There's an ancient watermill A watermill or water mill is a mill that uses hydropower. It is a structure that uses a water wheel or water turbine to drive a mechanical process such as mill (grinding), milling (grinding), rolling, or hammering. Such processes are needed in ... at Sempy. References Rivers of France Rivers of Hauts-de-France Rivers of the Pas-de-Calais {{France-river-stub ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Créquoise
The river Créquoise (; ) is one of the small streams that flow from the plateau of the southern Boulonnais and Picardy, into the Canche. It is long. The river rises at Créquy and passes by Torcy, Royon, Lebiez, Hesmond, Offin, Loison-sur-Créquoise and joins the Canche at Beaurainville Beaurainville (; ) is a commune in the Pas-de-Calais department in the Hauts-de-France region in northern France. Geography Beaurainville is a small town situated some 6 miles (10 km) southeast of Montreuil-sur-Mer, on the D130 road and o .... Three small tributaries join the Créquoise, the Fosse du Corval, L'Embrienne and le Surgeon See also * Schéma directeur d'aménagement et de gestion des eaux References External links *''Carte Géologique de la France à l'échelle du millionième'' 6th edn. BRGM (2003) Carte des bassins versants de la Canche et de la Ternoise [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Planquette
The river Planquette () is one of the small streams that flow from the plateau of the southern Boulonnais and Picardy, into the Canche. Its length is . The river rises at Planques Planques (; ) is a commune in the Pas-de-Calais department in the Hauts-de-France region of France. The source of the small river Planquette is in the commune. Population Places of interest * The 16th-18th century church See also *Communes ... and passes Fressin, Wambercourt, Cavron-Saint-Martin and joins the Canche at Contes. See also * Schéma directeur d'aménagement et de gestion des eaux References External links *''Carte Géologique de la France à l'échelle du millionième'' 6th edn. BRGM (2003) Carte des bassins versants de la Canche et de la Ternoise [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
