Flood plains are not ertile
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Answer:
A flood plain or floodplain is a flat area of land next to a river or stream. It stretches from the banks of the river to the outer edges of the valley. A flood plain regularly overflows, and the flooding is often seasonal. ... Flood plains are naturally very fertile due to the river sediment which is deposited there.
Answer:
A floodplain or flood plain or flood-plain is an area of land adjacent to a stream or river which stretches from the banks of its channel to the base of the enclosing valley walls, and which experiences flooding during periods of high discharge.[1] The soils usually consist of clays, silts, and sands deposited during floods.
Paraná River floodplain, at its confluence with the headstream of the Paranaíba on the right and the Verde River, near Panorama, Brazil
The floodplain after a one-in-10-year flood on the Isle of Wight
Gravel floodplain of a glacial river near the Snow Mountains in Alaska, 1902
The Laramie River meanders across its floodplain in Albany County, Wyoming, 1949.
This aggradational floodplain of a small meandering stream in La Plata County, Colorado, is underlain by silt deposited above a dam formed by a terminal moraine left by the Wisconsin Glacier.
Riparian vegetation on the floodplain of the Lynches River, close to Johnsonville, South Carolina. These tupelo and cypress trees show the high-water mark of flooding.