Water on the Land (Continued)

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  • Created by: Molly6098
  • Created on: 20-11-13 14:30
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  • Water on the Land
    • Managing Water
      • Managing water supply
        • Build more reservoirs to store more water
          • Can involve flooding settlements and relocating people
        • Fixing leaky pipes to reduce water lost
        • Transfer water from areas of surplus to areas of deficit
          • Issues: Equipment needed is expensive, could affect wildlife, might be political issues
      • Demand across the UK
        • In 25 years water use has gone up 50%
        • South East and Midlands have high population density-high demand for water, water deficit
        • North and west have high rainfall-good supply of water, water surplus
        • UK population predicted to increase
      • Reducing demand for water
        • Have water meters installed to charge people for the exact volume of water they use-make them want to use less
        • Reduce amount of water used at home-shorten showers, don't leave tap running, only use washing machines and dishwashers when they're full
    • Resevoirs
      • Case Study
        • Impacts
          • Social
            • Many jobs have been created
            • Lots of recreational activities on reservoir-sailing, windsurfing, birdwatching, cycling
            • Two villages demolished to build reservoir
          • Economic
            • 6km of land flooded-some farmers lost livelihoods
            • Boosts local economy-popular tourist attraction
          • Environmental
            • Variety of habitats found at reservoir
            • Hundreds of species of bird at reservoir, tens of thousands of waterfowl come in winter
            • Ospreys re-introduced to central England
            • Site of Special Scientific Interest-wildlife is protected
            • Large area was flooded to create reservoir so some habitats were destroyed
        • About
          • Designed to supply East Midlands with more water
          • Covers 12km area filled by Rivers Welland and Nene
          • Rutland Water in East Midlands
          • Areas around reservoirs used as nature reserve and for recreation
        • Sustainability
          • Can't deplete water supply or damage environment
          • Water supply needs to be sustainable for future population
          • Use the reservoir in a sustainable way
    • Hydrological cycle
      • Inputs: Water put in
        • Precipitation-Snow, rain, hail, sleet
      • Transfers/ flows: Movement of water within the cycle
        • Overland flow/ surface runoff-Water flow which occurs when soil is saturated and excess water flows over the land
        • Through flow-movement of water through the soil to a river channel
        • Infiltration-water on the ground enters the soil
        • Percolation-Movement and filtering of water through porous materials
        • Interception-Precipitation that doesn't reach the soil but is taken up by vegetation
      • Stores: Places where water stops within the cycle
        • Ground water store-water held in aquifers below the water table
      • Outputs: Water leaving the land
        • Evaporation-Water changes from a liquid to a gas
        • Transpiration-Water is absorbed by plants and evaporated into the atmosphere through the leaves
  • UK population predicted to increase

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