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watershed    音标拼音: [w'ɔtɚʃ,ɛd] [w'ɑtɚʃ,ɛd]
n. 分水岭

分水岭

watershed
n 1: a ridge of land that separates two adjacent river systems
[synonym: {watershed}, {water parting}, {divide}]
2: the entire geographical area drained by a river and its
tributaries; an area characterized by all runoff being
conveyed to the same outlet; "flood control in the Missouri
basin" [synonym: {river basin}, {basin}, {watershed}, {drainage
basin}, {catchment area}, {catchment basin}, {drainage area}]
3: an event marking a unique or important historical change of
course or one on which important developments depend; "the
agreement was a watershed in the history of both nations"
[synonym: {landmark}, {turning point}, {watershed}]

Watershed \Wa"ter*shed`\, n. [Cf. G. wasserscheide; wasser water
scheide a place where two things separate, fr. scheiden to
separate.]
[1913 Webster]
1. The whole region or extent of country which contributes to
the supply of a river or lake.
[1913 Webster]

2. The line of division between two adjacent rivers or lakes
with respect to the flow of water by natural channels into
them; the natural boundary of a basin; -- called also
{divide} and {water parting}.
[1913 Webster PJC]

3. a point in time marking an important transition between
two situations, or phases of an activity; a turning point.
[PJC]


Divide \Di*vide"\, n.
A dividing ridge of land between the tributaries of two
streams; also called {watershed} and {water parting}. A
divide on either side of which the waters drain into two
different oceans is called a {continental divide}.
[1913 Webster PJC]


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  • What is a watershed? - NOAAs National Ocean Service
    What is a watershed? It’s a land area that channels rainfall and snowmelt to creeks, streams, and rivers, and eventually to outflow points such as reservoirs, bays, and the ocean
  • Redmond Watershed Preserve - Washington Trails Association
    In 1926, the city of Redmond purchased a piece of land from Weyerhaeuser, intending to use Seidel Creek as a water supply More acreage was later purchased to bring the watershed to 800 acres, however water quality issues led to the use of other water sources
  • What is a watershed and why does it matter? - Washington State . . .
    What is a watershed and why does it matter? A watershed is an area of land where all the water—whether from rain, snowmelt, or springs—drains into a common water body, such as a river, lake, or ocean
  • WATERSHED Definition Meaning - Merriam-Webster
    The watershed year for science fiction must be 1968, when Stanley Kubrick's 2001: A Space Odyssey appeared, not only dramatically expanding for this kind of motion picture the potentials of film technology, but making science fiction a vehicle for both poetic vision and metaphysical exploration
  • Two-Minute Takeaway: What Is a Watershed? | TNC
    A watershed is an area of land where all water that enters it, either through precipitation or springs, drains to a common outlet or outflow point Or, to switch the phrasing, that piece of land is shedding water to a single point
  • Watersheds and Drainage Basins | U. S. Geological Survey
    A watershed is an area of land that drains all the streams and rainfall to a common outlet such as the outflow of a reservoir, mouth of a bay, or any point along a stream channel
  • Watersheds | Natural Resources Conservation Service
    Watersheds impact everyone; every community, farm, ranch, and forest They provide a vital resource for all living things to survive and thrive All watersheds are interconnected, creating a land-water system that conveys water to its final destination such as a river, lake, wetland, or estuary
  • What is a Watershed? – The Watershed Project
    A watershed is the area of land where all the rainwater drains to the same place—whether that’s a creek, river, bay, or the ocean Small watersheds, like those that feed a single creek, are part of larger watersheds, like the one that drains into the San Francisco Bay
  • What is a Watershed? Understanding Its Definition and Importance
    A watershed is a topographically defined area that is drained by a stream system, forming a hydrologic unit used for managing natural resources Imagine a large basin where all the water from rain, melting snow, and streams flows down to a common point, like a river, lake, or ocean
  • Watershed - National Geographic Society
    A watershed is an area of land that drains rainfall and snowmelt into streams and rivers





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