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Managing the Physical
Environment
Water Supply
Why do some areas not have enough water?
Drought – a lack of rainfall over ...
What are the problems of poor
water supply?

Nearly 50% of the world’s people lack access to safe water.
Contaminated wate...
What are the causes of poor water supply?
•
•
•
•

•
•

Water Supply
Lack of rainfall.
Poverty means people cannot
afford ...
Impacts of poor water supply?
Water supply can be a
problem in two ways
1. Some areas have
insufficient water or
suffer fr...
The problem of drought
The problem of contaminated water
Water projects?
Water projects vary in scale
and include:
• Multi-million dollar water
management projects,
which require ...
• Clean water supply
– Rope pumps raise

• Compost toilet
– Simple pits: use each pit for 6
months. It is then left to
com...
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Water supply LEDCs

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Transcript of "Water supply LEDCs"

  1. 1. Managing the Physical Environment Water Supply Why do some areas not have enough water? Drought – a lack of rainfall over a long period of time Desertification – the spread of desert-like conditions
  2. 2. What are the problems of poor water supply? Nearly 50% of the world’s people lack access to safe water. Contaminated water causes 80% of disease in LEDC’s and kills 10 million people a year.
  3. 3. What are the causes of poor water supply? • • • • • • Water Supply Lack of rainfall. Poverty means people cannot afford to buy water. Water can not be distributed or purified. Water may be rationed and supplied to farms and industry first. Rapid growth in population of urban areas in LEDCs. People forced to drink contaminated water or use polluted rivers.
  4. 4. Impacts of poor water supply? Water supply can be a problem in two ways 1. Some areas have insufficient water or suffer from droughts. 2. In many LEDCs people are forced to drink contaminated water.
  5. 5. The problem of drought
  6. 6. The problem of contaminated water
  7. 7. Water projects? Water projects vary in scale and include: • Multi-million dollar water management projects, which require massive engineering works. • Small-scale projects, which are village based and often funded by charitable donations. Aswan Dam
  8. 8. • Clean water supply – Rope pumps raise • Compost toilet – Simple pits: use each pit for 6 months. It is then left to compost & then used as fertilizer on the crops.

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