In decades gone by, humans have drained coastal salt marshes to create vital farm land. Along the south-east coastline of Sussex, farming has been the main use of land where this has occurred. However, much of this coastline is low lying so it is vulnerable to coastal flooding — especially as sea levels continue to rise. At Medmerry in Sussex, the earth embankment, originally built in the s to prevent the sea flooding the land, has now been breached so that natural mudflats are slowly being created by the advancing tide. In order for any development or idea to be regarded as sustainable, it should provide economic, social and environmental benefits. Managed realignment — Medmerry, Sussex In decades gone by, humans have drained coastal salt marshes to create vital farm land.
Soft Engineering- Managed Retreat; Essex Marshes Coastal Realignment Flashcards Preview
UK largest coastal realignment scheme is complete | tutor2u
Find Flashcards. Brainscape's Knowledge Genome TM. Browse over 1 million classes created by top students, professors, publishers, and experts. Loading flashcards Why is coastal management needed? The Blackwater Estuary threatened by coastal squeeze due to sea level rise.. What is the Blackwater Estuary?
Managed realignment at Medmerry, Sussex
Jump to navigation. What was the problem? As a result of climate change the coasts of England and Wales are coming under increasing threat from erosion and flooding. To protect human settlements, coastal defences such as sea walls were built, however it is now increasingly recognised that these defences cause the degradation or loss of coastal and intertidal habitats and the ecosystem services they provide, in particular flood protection.
In the Humber Estuary, UK , the managed realignment of coastal wetlands is protecting local communities from sea level rise and safeguarding an area of international importance to migrating waterbirds. Coastal wetlands can reduce the impacts of waves, storms, and sea-level rise by accumulating silt, reducing erosion and absorbing wave power. In comparison, hard infrastructures, including seawalls and levees often manufactured from materials with high carbon footprints , can be more expensive to build and maintain, and can impact important natural processes up and down stream. Climate change predictions suggest the sea level around the Humber Estuary will rise by about a third of a metre over the next 50 years. Bigger, more frequent storms are also expected.