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Erosion along the River Thames

 

Introduzione

Prova di erosioneAs a river flows, the force of its moving water washes away loose soil and pieces of rock. In this way the river cuts its own channel in the ground. The process of wearing away rocks is called erosion.

Erosion involves the wearing away of rock and soil found along the river bed and banks. Fast-moving rivers cause more erosion than slow-moving rivers. The Thames is a slow moving river.

Erosion shapes the land in different ways as the river moves from its source to its mouth.

Fonte

Near the source of a river, in the upper course, erosion is vertical (downward). This is because the water is being pulled downwards by gravity. This forms deep V-shaped valleys.

Il progetto sorgente del Tamigi is not very high up and the land slopes away gently. It does not form deep V-shaped valleys but it does still cut through the land.

The photograph shows where, in the past, the river has formed a V-shape across the field near the source. The channel of the river starts in the bottom left hand corner and

Bocca

Near the mouth of a river, in the lower course, erosion is lateral (horizontal or sideways). This forms a wide river channel.

Tipi di erosione

Tipi di erosione l L'uomo e l'erosione

Prevenire l'erosione l Prova di erosione

Inizio del viaggio lungo il Tamigi

 
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