Upland and lowland
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Upland and lowland are conditional descriptions of a plain based on elevation above sea level. In studies of the ecology of freshwater rivers, habitats are classified as upland or lowland.
Cascadilla Creek, near Ithaca, New York, in the United States, an example of an upland river habitat
Amazon River near Manaus, Brazil, an example of a lowland river habitat
Aerial view of Slapton Sands and northern part of Ley geograph.org.uk 1434412
Maldivesfish 2
Alluvial plain
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An alluvial plain is a plain created by the deposition of sediment over a long period by one or more rivers coming from highland regions, from which alluvial soil forms. A floodplain is part of the pr
Upland and lowland
…the geological definitions of "upland" and "lowland". In geology an "upland" is generally considered to be land that is at a higher elevation than the alluvial plain or stream terrace, which are considered to be "lowlands". The term "bottomland" refers to low-lying alluvial land near a river. Much freshwater fish…
Floodplain (centre) within the alluvial plain of the Waimakariri River, New Zealand (part of the Canterbury Plains).
A small, incised alluvial plain from Red Rock Canyon State Park (California).