Rivers Flashcards

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Identify one cost of planting trees as a flood management strategy.
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Examples include:

  • it can reduce habitat diversity when hillsides are covered in tree
  • it can lead to acidity in the soil
  • the loss of farmland

Find out more about soft engineering.

Identify one cost of planting trees as a flood management strategy.
Why does the long profile of a river become concave in the middle course?
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The gradient of the long profile becomes more concave as vertical erosion reduces.

Find out more about the long profile of a river.

Why does the long profile of a river become concave in the middle course?
Why might deposition occur at site C on the diagram below?

Deposition locations on a river

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Where the river flows into a sea or ocean it’s velocity is reduced leading to deposition. 

Find out more about river deposition.

Why might deposition occur at site C on the diagram below?
What is a waterfall?
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A waterfall is a step in the long profile of the valley. It is where water falls down the vertical drop in the channel usually from a considerable height.

Find out more about the landforms of erosion in the upper course of a river.

What is a waterfall?
How does a channel cross-section change downstream?
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In the upper course, the channel is very narrow and very shallow. By the middle course, the channel becomes wider and deeper usually over 1 m. By the lower course, the channel becomes wider still and the channel is much deeper.

Find out more about the cross profile of a river.

How does a channel cross-section change downstream?




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