South Asia - river flooding
- Created by: Revisiola
- Created on: 08-05-16 13:43
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- South Asia- river flooding 2007
- Causes
- Physical
- Monsoon- 80% of rain feel in 4 months
- Heavy rainfall- 900mm in July
- previously saturated soil increased surface runoff and discharge
- Peak discharges coincided
- River Ganges and Brahmaputra
- low-lying land
- Bangladesh - 90% is less than 10m above sea level
- Melting snow from the Himalayas
- Human
- Deforestation- less interception and root uptake
- Urbanization - increased surface run off
- Collapse of old dams in India caused further flooding
- Bangladesh is a poor country so there aren't many flood defences of warning systems
- Physical
- Impacts
- Environmental
- rivers were polluted with sewage
- fertile silt were deposited on floodplains
- Social
- over 2000 people died
- over 100000 people caught water borne disease due to the sewage polluted rivers
- 25 M were made homeless
- 4000 school were affected and 44 totally destroyed
- children lost out on education
- Low income , few savings and little insurance limited peoples ability to recover
- Economic
- estimated cost - $1 billion
- loss of livestock (80% of Bangladesh rely on livestock)
- 550,000 hectares of land couldn't be plated with rice - price rose by 10%
- 10,000 km of roads were destroyed
- Environmental
- Causes
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