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3 Distinctive Landscapes - Case Studies - Coggle Diagram

- - - - East coast of England.
      - Soft boulder clay, sand and gravel.
    - - Destructive waves cause erosion.
      - Deposition occurs in sheltered areas.
      - Longshore drift moves sediment west.
    - - Happisburgh
        
        Rapid cliff erosion.
        
        Coastal retreat.
      - Blakeney Point
        
        Spit formed by longshore drift.
      - Holkham
        
        Sand dunes.
        
        Salt marshes.
    - - Homes and roads threatened.
      - Farmland lost.
      - Habitat change.
      - Tourism affected.
    - - Sea walls.
      - Rock armour.
      - Groynes.
      - Managed retreat.
- - - - Rises at Plynlimon, Wales.
      - Flows into the Severn Estuary.
      - 5th longest river in the UK.
    - - Steep gradient.
      - V-shaped valleys.
      - Waterfalls & gorges.
      - Vertical erosion.
      - Large, angular rocks.
    - - River widens.
      - Meanders.
      - Lateral erosion.
      - Wide, fertile floodplains.
    - - Levees.
      - Floodplains.
      - Oxbow lakes.
      - Wye Gorge.
      - Joins the Severn Estuary.
    - - High rainfall → rapid erosion.
      - Freeze-thaw weathering.
      - Mass movement.
      - Hydraulic action.
    - - Tourism (canoeing, climbing).
      - Agriculture (especially chicken farming).
      - Limestone quarrying.
      - Afforestation.
    - - Causes
        
        High rainfall.
        
        Impermeable surfaces.
        
        Increased surface runoff.
      - Management
        
        Storage ponds.
        
        Tree planting (afforestation).
        
        Removable flood walls.
        
        Floodplain zoning.
        
        Slope stabilisation.