Managing coasts - soft engineering

Cards (19)

  • What is the main focus of the section titled "Managing coasts-soft engineering"?
    It explains how soft engineering can protect coastlines from physical processes.
  • How does soft engineering protect the coast?
    By working with natural coastal processes to enhance beach profiles and stabilize dunes.
  • What is beach nourishment?
    It is the addition of sand or shingle to an existing beach to make it higher or wider.
  • What is the process of reprofiling in beach nourishment?
    It involves shaping the dumped sand or shingle on the beach using bulldozers.
  • What are the benefits of a higher and wider beach created through beach nourishment?
    It provides greater protection to valuable land and property and enhances tourism and recreation.
  • What is dune regeneration?
    It is the process of replanting marram grass to stabilize sand dunes.
  • Why are soft engineering schemes generally preferred over hard engineering?
    They are more sustainable and often cheaper, despite requiring more maintenance.
  • What maintenance is required for beach nourishment?
    Beaches will need more sand or shingle added every few years.
  • What is the cost of beach nourishment per 100m?
    Up to £500,000 per 100m.
  • What are the advantages and disadvantages of beach nourishment?
    Advantages:
    • Relatively cheap and easy to maintain
    • Blends in with existing beach
    • Increases tourist potential by creating a bigger beach

    Disadvantages:
    • Needs constant maintenance unless structures are built to retain the beach
  • What is the role of marram grass in dune regeneration?
    Marram grass is planted to stabilize sand dunes and help them develop.
  • What is the cost of dune regeneration per 100m?
    £200 to £2,000 per 100m.
  • What are the advantages and disadvantages of dune regeneration?
    Advantages:
    • Maintains a natural coastal environment
    • Relatively cheap

    Disadvantages:
    • Time-consuming to plant marram grass and fence areas
    • Can be damaged by storms
  • What is dune fencing?
    Dune fencing involves constructing fences on a sandy beach to encourage new dune formation.
  • What is the cost of dune fencing per 100m?
    £400 to £2,000 per 100m.
  • What are the advantages and disadvantages of dune fencing?
    Advantages:
    • Minimal impact on natural systems
    • Can control public access to protect ecosystems

    Disadvantages:
    • Can be unsightly if fences become broken
    • Regular maintenance needed, especially after storms
  • Where is dune regeneration at Chichester located?
    It is located in West Sussex.
  • Where is beach nourishment at Eastbourne located?

    It is located in East Sussex.
  • Where is sand dune regeneration at Calgary Bay located?
    It is located in Mull, Scotland.