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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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英文字典中文字典相关资料:


  • WATERSHED Definition Meaning - Merriam-Webster
    : a dividing ridge (as a mountain range) separating one drainage area from others : the area that drains into a river or lake Nglish: Translation of watershed for Spanish Speakers
  • Coachella Valley Water District - Official Website | Official Website
    Apply for rebates and reduce your water usage This report contains information about the source and quality of your drinking water Coachella Valley Water District offers tours to the public and to private groups
  • 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
  • Watersheds and Drainage Basins | U. S. Geological Survey - USGS. gov
    Watersheds can be as small as a footprint or large enough to encompass all the land that drains water into rivers that drain into Chesapeake Bay, where it enters the Atlantic Ocean This map shows one set of watershed boundaries in the continental United States; these are known as National hydrologic units (watersheds)
  • Desert Water Agency | Desert Water Agency was founded as a groundwater . . .
    Check out the DWA video channel to go behind the sceness with an employee and see the important role they play in delivering water There's also loads of valuable information and videos on water waste and conservation, water quality, water recycling, smart irrigation controllers, rebates and more
  • What is a watershed and why does it matter?
    Watersheds play a crucial role in the environment and human society, as they determine both the availability and quality of water They supply drinking water, support agriculture, sustain ecosystems, and help manage stormwater Healthy watersheds provide a natural filtration system for water, preventing pollutants from entering rivers and lakes
  • Watershed - Education | National Geographic Society
    Watersheds drain rainfall and snowmelt into streams and rivers These smaller bodies of water flow into larger ones, including lakes, bays, and oceans Gravity helps to guide the path that water takes across the landscape Not all rain or snow that falls on a watershed flows out in this way Some seeps into the ground
  • How Watersheds Work - HowStuffWorks
    The Environmental Protection Agency defines a watershed as any body of land that flows downhill into a waterway Basically, "watershed" is a broad term used to describe how water flows across land to feed streams, rivers and lakes [source: Environmental Protection Agency]
  • Watersheds (U. S. National Park Service)
    Within a watershed, all the water beneath the soil (groundwater) and rain water or snow are drained into the same place such as a stream, lake, or wetland These bodies of water supply us with the water we drink, water for agriculture and manufacturing, and opportunities for recreational activities like canoeing and fishing
  • Watershed 101
    What is a watershed? A watershed is an area of land where all the water—whether from rainfall, snowmelt, or streams—flows into a common body of water, such as a river, lake, or ocean





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