river basin
Noun: 1. A drainage basin or watershed: The entire geographical area of land where all surface water from rain, snowmelt, or other sources drains into a single river system and ultimately flows out through one common outlet, such as a larger river, lake, or ocean. It is defined by the natural topography and divides (like hills or mountains) that direct water flow.
The term "river basin" is used to describe a hydrological and geographical unit for water resource management, environmental study, and planning. * The Amazon River basin is the largest in the world, covering approximately 7 million square kilometers. * Effective conservation requires managing the entire river basin, not just the main channel. * Pollution in one part of a river basin can affect water quality hundreds of miles downstream.
- "Transboundary river basin": A river basin that spans the territory of two or more countries, requiring international cooperation for its management.
- The management of the Nile River basin involves complex agreements between multiple nations.
- "Basin management": An integrated approach to managing water, land, and related resources within a river basin to achieve economic and social benefits in an equitable manner without compromising ecosystem sustainability.
- Drainage basin (noun): A direct synonym for "river basin."
- Watershed (noun): Often used synonymously with "river basin," though in some regional contexts (like North America), "watershed" can refer to a smaller sub-area or the dividing line between basins.
- Catchment (noun): Another synonym, commonly used in British English and hydrological sciences.
- Catchment area (noun): Equivalent to "river basin."
- Drainage basin
- Watershed
- Catchment (area)
- Drainage area
- Tributary: A smaller river or stream that flows into a larger one.
- Divide / Watershed divide: The high land that separates one river basin from another.
- Estuary: The tidal mouth of a river where the freshwater meets the sea.
- Runoff: Water from rain or snow that flows over the land surface.
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the entire geographical area drained by a river and its tributaries; an area characterized by all runoff being conveyed to the same outlet
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flood control in the Missouri basin
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