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- Alluvial_plain abstract "An alluvial plain is a largely flat landform created by the deposition of sediment over a long period of time by one or more rivers coming from highland regions, from which alluvial soil forms. A floodplain is part of the process, being the smaller area over which the rivers flood at a particular period of time, whereas the alluvial plain is the larger area representing the region over which the floodplains have shifted over geological time.As the highlands erode due to weathering and water flow, the sediment from the hills is transported to the lower plain. Various creeks will carry the water further to a river, lake, bay, or ocean. As the sediments are deposited during flood conditions in the floodplain of a creek, the elevation of the floodplain will be raised. As this reduces the channel floodwater capacity, the creek will, over time, seek new, lower paths, forming a meander (a curving sinuous path). The leftover higher locations, typically natural levees at the margins of the flood channel, will themselves be eroded by lateral stream erosion and from local rainfall and possibly wind transport if the climate is arid and does not support soil-holding grasses. These processes, over geologic time, will form the plain, a region with little relief (local changes in elevation), yet with a constant but small slope.The above description seems to fit with the primary definition found in the "Glossary of Landform and Geologic Terms", maintained by the National Cooperative Soil Survey, which states that an "alluvial plain" is "a large assemblage of fluvial landforms (braided streams, terraces, etc.,) that form low gradient, regional ramps along the flanks of mountains and extend great distances from their sources (e.g., High Plains of North America)" Use of "alluvial plain" as a general, informal term for a broad flood plain or a low-gradient delta is explicitly discouraged. The NCSS glossary instead suggests "flood plain".".
- Alluvial_plain thumbnail Waimakariri02_gobeirne.jpg?width=300.
- Alluvial_plain wikiPageID "914159".
- Alluvial_plain wikiPageRevisionID "598522458".
- Alluvial_plain hasPhotoCollection Alluvial_plain.
- Alluvial_plain subject Category:Fluvial_landforms.
- Alluvial_plain subject Category:Geography_terminology.
- Alluvial_plain subject Category:Plains.
- Alluvial_plain comment "An alluvial plain is a largely flat landform created by the deposition of sediment over a long period of time by one or more rivers coming from highland regions, from which alluvial soil forms.".
- Alluvial_plain label "Alluvial plain".
- Alluvial_plain label "Llanura aluvial".
- Alluvial_plain label "Pianura alluvionale".
- Alluvial_plain label "Plaine alluviale".
- Alluvial_plain label "Planície aluvial".
- Alluvial_plain label "Równina aluwialna".
- Alluvial_plain label "Аллювиальная равнина".
- Alluvial_plain label "冲积平原".
- Alluvial_plain label "沖積平野".
- Alluvial_plain sameAs Llanura_aluvial.
- Alluvial_plain sameAs Plaine_alluviale.
- Alluvial_plain sameAs Pianura_alluvionale.
- Alluvial_plain sameAs 沖積平野.
- Alluvial_plain sameAs 충적_평야.
- Alluvial_plain sameAs Równina_aluwialna.
- Alluvial_plain sameAs Planície_aluvial.
- Alluvial_plain sameAs m.03pf4c.
- Alluvial_plain sameAs Q656586.
- Alluvial_plain sameAs Q656586.
- Alluvial_plain wasDerivedFrom Alluvial_plain?oldid=598522458.
- Alluvial_plain depiction Waimakariri02_gobeirne.jpg.
- Alluvial_plain isPrimaryTopicOf Alluvial_plain.