Geography 4.7

Question 1

Explain how human factors (urbanisation, land-use change and deforestation) can affect flood hydrographs.

Answer 1

urbanisation, because towns and cities have more impermeable surfaces

deforestation, because removing trees reduces the amount of water intercepted and increases run-off

Question 2

Explain how physical and human factors cause river flooding in the River Eden.

Answer 2

heavy rainfall

long periods of rain

snowmelt

steep slopes

impermeable rock (doesn’t allow water through)

very wet, saturated soils

compacted or dry soils

urbanisation, because towns and cities have more impermeable surfaces

deforestation, because removing trees reduces the amount of water intercepted and increases run-off

In cgp guide aswell

Question 3

What are the effects of flooding on people and environment? What problems were caused?

Answer 3

Houses destroyed and forced to spend more money of flood defences in future