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A river valley civilization is an agricultural nation or civilization situated beside and drawing sustenance from a river. A river gives the inhabitants a reliable source of water for drinking and agriculture. Some other possible benefits for the inhabitants are fishing, fertile soil due to annual flooding, and ease of transportation.
The valley of Halikko River in Halikko, Finland Valley of Palakaria river springing from Vitosha Mountain, seen in the background, in Bulgaria. The development of a river valley is affected by the character of the bedrock over which the river or stream flows, the elevational difference between its top and bottom, and indeed the climate.
Wadi – River valley, especially a dry riverbed that contains water only during times of heavy rain; Waterfall – A point in a river or stream where water flows over a vertical drop; Watershed – Land area where water converges to a common outlet; Yazoo stream – Hydrologic term
As rivers flow downstream, they eventually merge to form larger rivers. A river that feeds into another is a tributary, and the place they meet is a confluence. [4] Rivers must flow to lower altitudes due to gravity. [3] The bed of a river is typically within a river valley between hills or mountains.
The thalweg of a river. In geography, hydrography, and fluvial geomorphology, a thalweg or talweg (/ ˈ t ɑː l v ɛ ɡ /) is the line or curve of lowest elevation within a valley or watercourse. [1] Its vertical position in maps is the nadir (greatest depth, sounding) in the stream profile.
The valley may fill with alluvium for many different reasons including: an influx in bed load due to glaciation or change in stream power which causes the valley, that was down cut by either a stream or river, to be filled in with material (Easterbrook). The stream or river will continue to deposit material until an equilibrium is reached and ...
A ria (/ ˈ r iː ə /; [1] Galician: ría, feminine noun derived from río, river) is a coastal inlet formed by the partial submergence of an unglaciated river valley. It is a drowned river valley that remains open to the sea.
The Arkansas River Valley, also known as the Arkansas Valley, is a region in Arkansas defined by the Arkansas River in the western part of the state. Generally defined as the area between the Ozark and Ouachita Mountains, [1] the River Valley is characterized by flat lowlands covered in fertile farmland and lakes periodically interrupted by high peaks.