Beach erosion happens when waves and currents from the ocean wash over the shore. Then, these waves carry sand and sediment with them and scatter it to the ocean floor or other areas. The causes of beach erosion are sometimes due to natural phenomenon like a flood or rising of sea levels due to melting polar ice caps or man-made; that is the actual removal of sand from a beach to deeper parts of the ocean, tidal shoals and bays.
Nature and Vegetation
One way to help fight beach erosion is to plant plenty of seaweed and create an environment that would attract sea creatures. Planting of vegetation help control erosion because the roots of these plants help to anchor the sand and make sure it won’t get carried off when erosion occurs. If there are more life and natural resources, there would be a lesser chance for erosion to happen.
Another way to prevent beach erosion is nourishment. This means transplanting sand from other areas. Although this is can’t be a permanent solution. Not to mention costly.
Seawalls are structures or barrier walls built parallel to the coastline to stop the waves from hitting the sand and eroding it. If you have a beachfront house, you need this for protection. It is an effective solution although it will only protect the areas they are installed along.
These are different from seawalls. Breakwaters are barriers or structures built offshore with one end attached to the coast. It helps break the force of waves distance away from the coast. As soon as the waves hit the breakwaters, it will lose its energy thus, resulting to lessen erosion. However, any parts of the coast not protected by breakwater will continue erosion occurrence.