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Water Movement through Ecosystems:

Water Movement through Ecosystems:. How does surface water affect ecosystems and the human population? Groundwater?. Where do we get our drinking water?. 1/3 of citizens get it from groundwater (privately owned wells:rural) and 2/3 from surface water(urban). Table Rock Reservoir.

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Water Movement through Ecosystems:

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  1. Water Movement through Ecosystems: How does surface water affect ecosystems and the human population? Groundwater?

  2. Where do we get our drinking water? 1/3 of citizens get it from groundwater (privately owned wells:rural) and 2/3 from surface water(urban). Table Rock Reservoir

  3. What is Ground Water? • If surface water is water that does not soak into the ground, what is ground water? (BRAIN POP: Groundwater) • Yes-water that does soak into the ground. Soil and rock that allow water to pass through is called permeable.

  4. Surface Water • Definition: Runoff that has not soaked into the ground • As runoff travels downhill, it forms the water in streams and rivers.

  5. Surface Water • An area that is drained by a river and all the streams that empty into it, the tributaries, is called a drainage basin or watershed. • A divide is the high ground between two drainage basins.

  6. Drainage Basins or Watersheds • By studying a map that contains rivers and marking all the tributaries of that river, the watershed area can be identified.

  7. Drainage Basins or Watersheds

  8. Affects on Ecosystems • The floodplain of a river may deposit sediment after heavy rains enriching the area with new soil needed for growing vegetation. • This new soil is nutrient rich. Crops or natural vegetation grow well in it. * The drainage basin provides the needed water for animal life also.

  9. Affects on Ecosystems • Deltas may form where the river ends into a still body of water like a lake or the ocean.(Santee delta in South Carolina or the Mississippi delta in Louisiana)

  10. Human Activities • Human beings are dependent upon water for survival, not only for drinking but for agriculture and industry as well.

  11. Human Activities • Dams have been place along some rivers in order to produce hydroelectric power and to offer recreation in the lakes that form behind the dams. Santee Cooper Dam: Is a leading producer of electricity for SC residents.

  12. Human Activities • Lakes, rivers, and the ocean contain sources of food and minerals. • Earth is 71% water with 3% freshwater. Since much of the freshwater is in the form of ice, very little is left as “usable”a freshwater for humans.

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