banglasdesh
- Created by: sana.2000
- Created on: 06-05-19 12:19
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- Bangladesh
- risk
- densely populated
- 46% of pop. live in places less than 10m above the sea level
- lies of a flood plain of 3 major estuaries
- snowmelt from the Himalayas adds to monsoon rain
- increasing flood risk
- subsidence
- clearance and drainage of islands in the Ganges-Brahmaputra river delta
- clearer for Cultivation
- e.g. Shrimp farming
- prevented natural deposition of sediment that used to main the Island's height
- removed embankment from the 1970s-1980s
- protect from tidal surges
- removing vegetation
- 70% of Bangladesh's mangrove-forested coastline retreating by 200m annually
- erosion
- sea level
- removal of vegeation
- protection and shelter by mangroves
- roots absorb water
- natural barrier and dissipiate the waves energy before it reaches the land
- 70% of Bangladesh's mangrove-forested coastline retreating by 200m annually
- subsidence
- Sri Lanka
- Only 2 people died in the 2004 Indian Ocean Tsunami due to mangroves
- protect the mangroves scheme
- protect 8800 hectares of remaining forest
- replant
- micro-loans to villagers for the incentive to protect mangroves
- adaptation
- Storm surges
- changes in sea level caused by intense low-pressure system (depressions and tropical cyclones) and high speeds.
- intensified by funnel-shape
- impacts
- high winds and floods damaged roads houses and infastructure
- drinking water was contaminated by debris and freshwater sources e.g. wells were inundated with salt water
- electricity supplies and communications were knocked out
- sanitation infrastructure destroyed raising risk of disease
- aftermath
- est. cost us$1.7billion
- less casualties - improved disaster prevention
- improved forecasting
- improved warning system
- cyclone shelters
- risk
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