Bangladesh Case Study, Natural Causes of Flooding
- Created by: Jessica
- Created on: 12-01-13 20:06
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- Bangladesh, Natural Causes of Flooding
- Drainage basin covers 1.75 million km2.
- Half the country is less than 5m above sea level.
- Total rainfall is very high.
- 75% occurs in Monsoon season, which is from June to September.
- Monsoon season causes rivers to burst their banks and flood.
- Dense population, 900 people per km2
- Rapid population growth, 2.7% per annum
- Human Causes of Flooding
- Deforestation
- Removal of trees in Himalayan uplands
- Overland flow
- Less infiltration of water
- Removal of trees in Himalayan uplands
- River Diversion
- India's River Ganges has been diverted for irrigation purposes. This has stopped the supply of river sediment.
- International loans
- Overseas pressure
- Bangladeshi Government is under pressure to invest in industry at the expense of social schemes that would help local residents.
- Deforestation
- 1998 Floods
- 2/3 of the country was submerged by water.
- 23 million people made homeless.
- 130,000 cattle killed
- 660,000 hectares of crops were badly damaged.
- In Dhaka, the capital, the sewage system collapses and drinking water was contaminated.
- Diarrhoea and dysentery affected many people who came into contact with the water.
- Textile industry employed 1.5 million people.
- 400 factories forced to close.
- 166,000 jobless
- 400 factories forced to close.
- 11,000km of roads damaged in the floods.
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