Foredunes, the seaward-most sand ridges parallel to the shore, are particularly important because they provide the first lines of defence for coastal communities against overtopping waves and flooding. Their shape, especially crest height, affects the degree of coastal protection [19–21].

What does Foredune mean in geography?

Foredune: Is the front of the dune, where the beach meets the dune. The foredune is formed by sand particles being blown up the beach. The foredune gradually becomes larger and larger and plants begin to grow on it.

Why do we need dune vegetation?

Vegetation plays a vital role in dune formation and stabilization. On windy days, sand grains get picked up by the wind and blow around. ... As the plants grow, they send out lots of roots and rhizomes that further trap and stabilize the sand, helping to make the dune stronger and more resistant to erosion.