Understanding Rivers - National Geographic Society
网页2023年10月19日 · Together, a river and its tributaries make up a river system. A river system is also called a drainage basin or watershed. A river’s watershed includes the river, all its tributaries, and any groundwater resources in the area. The end of a river is its mouth. Here, the river empties into another body of water—a larger river, a lake, or the ...
River system - Simple English Wikipedia, the free encyclopedia
网页River system. A river system is sometimes called a drainage system. It is the whole natural water system in a drainage basin. Water in a drainage basin usually ends up in the sea, but there are places where the water just evaporates, or flows into an inland lake.
River | Definition, Examples, Importance, & Facts | Britannica
网页1 天前 · River, (ultimately from Latin ripa, “bank”), any natural stream of water that flows in a channel with defined banks . Modern usage includes rivers that are multichanneled, intermittent, or ephemeral in flow and channels that are practically bankless.
Rivers and Streams: Life in Flowing Water - Nature
网页The river continuum and fish zonation concepts are idealized models of river systems that provide theoretical frameworks for hypothesis generation and comparisons to particular situations.
Rivers: A simple introduction - Explain that Stuff
网页2022年6月3日 · A river begins life high in the hills or mountains. In a cold region, a river may be created by melting snow or a glacier. In warmer places, rivers typically form when water drains from a whole series of upland slopes known as a basin .
Rivers and Streams - Water and Sediment in Motion
网页Rivers are a dynamic combination of water, sediment, aquatic organisms, and riparian vegetation, all participating in a complex dance from the point of origin, or headwaters, toward the ocean or...
Rivers-Structure and Functions - SpringerLink
网页2014年1月1日 · A river system comprises the whole river corridor—the river channel, riparian zone, floodplain, and alluvial aquifer. Figure 2.1 depicts the gross features of a river along its master channel. Sand and gravel deposits constitute an integral part of this fluvial hydrosystem, which make it permeable to exchange of water between the corridors.
River - Geometry, Systems, Flow | Britannica
网页2024年9月15日 · River - Geometry, Systems, Flow: Hydraulic geometry deals with variation in channel characteristics in relation to variations in discharge. Two sets of variations take place: variations at a particular cross section (at-a-station) and variations along the length of the stream (downstream variations).
The river system through time - Encyclopedia Britannica
网页2024年9月15日 · River - Formation, Erosion, Deposition: Natural river systems can be assumed to have operated throughout the period of geologic record, ever since continental masses first received sufficient precipitation to sustain external surface runoff.
River - National Geographic Society
网页2023年10月19日 · A river is a ribbon-like body of water that flows downhill from the force of gravity. A river can be wide and deep, or shallow enough for a person to wade across. A flowing body of water that is smaller than a river is called a stream, creek, or brook.
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