Fragile Environments

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  • Created by: Frankie97
  • Created on: 08-02-14 08:42
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  • Fragile Environments
    • Soil erosion
      • 3 main types
        • Sheet
        • Gully
        • Wind
      • Made worse by
        • Overcutting+ clearing
        • Overgrazing
        • Overcultivating
        • Compacting with heavy machinery
        • Ploughing fields in the same direction as the slope
      • Consequences
        • Malnutrition+ illnesses
        • Famine+ starvation
        • Migration
      • Management
        • Planting
        • Terracing+ contour ploughing
        • Dams
        • Lines of walls earth/ stons
    • Desertification
      • less rainfall=> less vegetation cover=> more soil moisture
      • More intense rainfall=> more run-off and less soil moisture
    • Deforestation
      • Causes
        • Commercial logging
        • Road building
        • H.E.P.
        • Land for peasants
        • Agriculture
        • Mining
      • Consequences
        • Loss of forest+ habitat
        • Loss of habitat+ relocatioon of tribes
        • Pollution+ more Greenhouse gases
        • Loss of O2+ more CO2
        • Soil erosion+ increased profit
        • Increased economic growth
      • Protection
        • UNFF
          • Promotes sustainable forest management
        • CITES
          • Protects rainforest ecosystems
        • ITTA
          • Protects rainforest ecosystems
        • International pressure
          • Greenpeace+ logger trackers
    • Climate change
      • Natural Causes
        • Orbit wobles
        • Sun output changes
        • Volcanoes
        • Ocean current changes
      • Human Causes
        • Burning fossil fuels
        • Gases from aerosols+ coolants
        • Large crop areas+ agriculture change
        • Deforestation
        • Air pollution+ waste
        • Animal manure+ artificial fertilisers
      • Prevention
        • Reducing use of fossil fuels
        • Finding alternative energy sources
        • Reducing deforestation+ increasing afforestation
        • Develop Carbon capture technologies
      • Consequences
        • Rising sea levels
        • More hazards
        • Ecosystems change
        • Health+ conflict

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