GCSEGeog2_3PPt - Christ The King VLE

January 19, 2018 | Author: Anonymous | Category: Social Science, Political Science, Government
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WJEC (B) GCSE Geography

Theme 2 Topic 3

Water deficit

Hodder Education Revision Lessons

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WJEC (B) GCSE Geography

Theme 2 Topic 3

Water deficit Water deficit is where an area does not have enough water to meet demand. Reasons for this could include: • Low rainfall • Lack of water storage • High levels of evaporation

• High population, so high demand • Lots of industry, e.g. agriculture so high demand

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WJEC (B) GCSE Geography

Theme 2 Topic 3

What are the effects of drought? Drought is where an area receives less rainfall than normal over a long period. Effects in richer countries • There are hosepipe bans. • Public fountains are turned off. • Private swimming pools, e.g. in hotels, are closed. • There are fines for illegal water use. • Water supply to homes is stopped and water tankers are provided for streets. • There is some damage to ecosystems, e.g. ponds.

Effects in poorer countries • Animals die. • Plants including crops and trees die. • People are forced to drink contaminated water supplies. • People suffer ill health due to dehydration. • Land turns to desert and erosion increases. Click to continue

WJEC (B) GCSE Geography

Theme 2 Topic 3

How does drought affect quality of life? Question: Explain how drought might affect the quality of life for people living in an LEDC. (5 marks) Effects in poorer countries • Animals die. • Plants including crops and trees die. • People are forced to drink contaminated water supplies. • People suffer ill health due to dehydration. • Land turns to desert and erosion increases.

These are the effects. How would they affect the quality of life of people? Click to continue

WJEC (B) GCSE Geography

Theme 2 Topic 3

How does drought affect quality of life? Animals die

so people lose a supply of food and might suffer malnutrition

Plants including crops and trees die

so people have less firewood for fuel so can’t cook food or heat water and can become ill

so they become ill and can’t work so People are forced to drink contaminated water supplies they lose income People suffer ill health due to dehydration

so they can’t work and have to spend money on medicine

Land turns to desert and erosion increases

so farmers can’t grow crops so they lose income and can’t afford food and medicine

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WJEC (B) GCSE Geography

Theme 2 Topic 3

What problems does drought cause? Question: Complete the table below to explain how drought can cause problems for a country’s government. (4 marks) Less crops are produced to sell abroad

so…

Because people are not working, they so… are not paying tax The government may have to provide aid like water and food

so…

Lots of people are ill

so…

Exam tip: This question is different from the previous question because it is not about the impacts on individuals.

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WJEC (B) GCSE Geography

Theme 2 Topic 3

Problems caused by drought Fewer crops are produced to sell so less income is made for the abroad country from exports so the government receives less Because people are not working, tax and has less money to spend they are not paying tax on providing services The government may have to provide aid like water and food

so this is expensive and the government has less money to spend on providing or improving the country’s infrastructure

Lots of people are ill

so pressure on hospitals and more money is spent by the government Click to continue

WJEC (B) GCSE Geography

Theme 2 Topic 3

Managing drought Complete the diagram to show any methods you have studied that people can use to manage drought.

Managing drought

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WJEC (B) GCSE Geography

Theme 2 Topic 3

Managing drought Grow droughtresistant crops Build small rock dams with covers

Plant trees

Managing drought

Plant grass strips on the contours of gentle slopes

Build stone lines on gentle slopes

Collect rainwater using pipes and reservoirs

Build terraces on steeper slopes Click to continue

WJEC (B) GCSE Geography

Theme 2 Topic 3

Reducing problems of drought Use the diagram to explain how the different methods would

Grow droughtresistant crops Build small rock dams with covers

Plant trees

help to reduce drought. Managing drought

Plant grass strips on the contours of gentle slopes

Build stone lines on gentle slopes

Collect rainwater using pipes and reservoirs

Build terraces on steeper slopes

Click to continue

WJEC (B) GCSE Geography

Theme 2 Topic 3

Reducing problems of drought Grow drought-resistant crops

so that there will be a supply of food for people and to sell

Plant trees

so that there is an increased store of water and increased transpiration to create rainfall. This binds the soil together, so water can infiltrate the ground. It also creates shade so there is less evaporation

Collect rainwater using pipes and reservoirs

so that water doesn’t just run off into rivers — it can be stored for use such as drinking water or watering crops

Build terraces on steeper/build stone lines on gentle slopes/plant grass strips on the contours of gentle slopes

because this reduces surface runoff and increases infiltration, so it builds up under ground as a store of water that can be accessed by wells

Build small rock dams with covers

so that water can be stored instead of running into rivers. The cover reduces evaporation

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