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Creating new sand dunes
There are a number of examples of sites where new dune (and salt marsh) habitat
has been created as a result of human activity. These include:
Each of these is taken from sites where new sand dunes were a 'by-product'
of engineering activities. They show how given a suitable environment and sediment
supply dunes can form through the natural process of succession without further
intervention. At another site (Køge
Bay, Denmark) a more deliberate attempt to create dune habitat was successfully
attempted. The profile of the dune was pre-engineered, then left to develop
'naturally'.
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General guidance: The way in which these examples have developed
illustrate a number of key points of importance when considering the artificial
creation of sand dunes:
- Dunes are 'opportunists' and foredunes can develop spontaneously;
- Dunes are not necessarily fragile and vulnerable but are adaptable
and will react to sea level rise and storms to create new habitat;
- Changes can be quite rapid.
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