Our battered coast

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Our battered coast

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Our battered coast. Waves and wind batter the coast. . In some places the waves erode the land along the coast. This high cliff has rocks that have tumbled down. . In other places the waves and wind make large sand dunes. . - PowerPoint PPT Presentation

Transcript of Our battered coast

Page 1: Our battered coast

Our battered coast

Page 2: Our battered coast

Waves and wind batter the coast.

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In some places the waves erode the land along the coast. This high cliff has rocks that have tumbled down.

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In other places the waves and wind make large sand dunes.

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The safest beaches have shallow water. The waves and currents have not washed the sand away.

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This harbour has been built to protect boats from large waves and storms.

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Ports

Ports need to be built in places where they are protected from storms and big waves.

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Grasses, trees and shrubs growing on the sand dunes stops the sand from being washed or blown away.

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Plants growing along the sides of cliffs slows the erosion of rock, soil and sand.

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Erosion happens when soil, sand or rock get moved away by water or wind. What part of this dune is eroding?

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Erosion can be natural. Storms with big waves erode the coast over a long time making cliffs.

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We sometimes want to reduce this erosion so we build sea walls.

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We can also cause erosion by destroying the plants growing along the coast.

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Cars driven on this dune have killed the plants and the sand is eroding away.

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How will these cars parking on the beach affect the plants trying to grow in the sand?

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People have also destroyed some of the mangroves that also protect the coast. This eroding beach was once a mangrove forest.

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Can you see the erosion? The stairs have been built to stop the dune from eroding more.

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Where there is erosion new tracks and growing more plants can help to stop the damage.

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Sensitive areas can be fenced off stopping people and animals walking on the plants.

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This sand dune is being protected by keeping people out.

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By making people go on a boardwalk, the plants have a chance to grow back.

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We can all help protect our coast by staying on the tracks.