coastal management - soft engineeirng

Question 1

what is dune stabilisation, the pros and cons of it and the price

Answer 1

marram grass can be planted to stabilise dune, areas can be fenced off to keep people off newly planted dunes.

pros
maintains a natural coastal environment
provides important wildlife habitats
relatively cheap and sustainable

cons
time consuming to plant marram grass
people may respond negatively to being kep off certain area

cost 200 to 2000 pounds per metre

Question 2

what is marsh creation, the pros and cons of it and the price

Answer 2

a form of managed retreat, by allwoing low- lying coastal areas to be flooded by the sea. The landthen becomes a salt marsh

pros
cheap (land reverts to its original state before management)
creates a natural buffer to powerful waves
creates an important wildlife habitat.

cons
agricultural land is lost
farmers or landowners need to be compensated

costs
the cost is variable depending on the size of the area left to the sea.