GCSE Geography

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GCSE Geography
2012-05-28 03:59:47
case study coastal habitats

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  1. salt marshes are
    areas of periodically flooded low-lying coastal wetlands . They are often rich in plants , birds and animals
  2. Keyhaven Marshes is an area of salt marsh formed in the
    lee of Hurst Castle spit
  3. Keyhaven Marshes supports a wide range of habitats including
    grassland , scrub , salt marsh and reed beds
  4. common wildlife species found at Keyhaven Marshes include
    • cordgrass
    • sea lavender
    • oystercatcher
    • ringed polver
    • wold spider
  5. what threats does Keyhaven Marshes recieve - retreating
    the salt marsh is retreating up to 6km a year , further sea level rise threatens a squeeze of the salt marsh as it lies between a low sea wall and the encroaching sea
  6. what threats does the Keyahevn Marshes recieve - sevre storms
    The salt marsh has been under threat from the breaching of of Hurst Castle Spit during sevre storms . In December 1989 storms pushed part of the shingle ridge over the top of the salt marsh , exposing 50 to 80m to the full fury of the sea . It was eroded in less than 3 months
  7. what threats does the Keyhaven Marshes recieve - lesiure , tourism
    Increasing demands for lesiure and tourism have meant that increasing numbers of people wish to visit the marshes . Careful management is required to prevent damage by trampling , parking and pollution . The area is popular with mariners who use the many creeks to moor their boats
  8. what are the possible solutions to protect the marshes - rock armour
    in 1996 rock armour and beach nourishment were used to increase the height and width of the spit in an attempt to stop breaching . Since the completion of the £5m defences , the spit has not been breached
  9. what are the possible solutions to protect the marshes - nature reserve
    Keyhaven Marshes has been recognised as an important side for wildfowl and wading birds . Part of the salt marsh is a National Nature Reserve . This means that the area is carfeully monitored and managed to maintain its rich biodiversity . Acess is limited and development is restricted
  10. what are the possible solutions to protect the marshes
    the low sea wall may need to be made taller