BANGLADESH RIVER FLOODING
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29 Terms
Bangladesh links to flooding?
Deltaic country
Significant annual floods
How do the flood support people?
Support large rural population
Delivering over 1 billion tonnes of fertile soil.
Vital agricultural resource
How does this happen?
Rural population densities as high has 1,000 people per km2.
Washed down from Himalayas by over 200 rivers.
What do the rivers dominate?
Country’s low-lying floodplain landscape.
3 major rivers:
Ganges
Brahmaptura
Meghna
How many people in Bangladesh live in rural areas?
2019: over 60%
How much of the country is affected by the floods?
80% of land area
Benefitted & challenged by it
Why is flooding an increasing hazard?
Climate change exacerbates flood risk in short-to medium-term.
What does climate change cause in the longer-term?
Regional subsidence
Caused by plate tectonics
Country more liable to both river + coastal flooding.
How has the magnitude of flood increased?
2014: Bangladesh experience 6 years of high-magnitude floods
In years before, how much of the country would be flooded?
22% inundated
Periods between 1974-2007
What has Bangladesh experienced since 2015?
6 consecutive years of high magnitude floods
Issues with health risks?
Direct & Indirect
2020: complicated by Covid-19
What happened recently in Bangladesh?
2023: Bangladesh floods
Dengue crisis
Nearly 1,000 people died
Most severe outbreak yet
What increases during flood years?
Transmission of water-borne pathogens
What happened in the 2020 foods?
Triggered epidemic of diarrhoea & other water-borne diseases.
E.g. Typhoid & Hepatitis
Food contaminated by bacteria in floodwater
Why were the 2020 floods so difficult?
One of the largest & longest floods in Bangladesh’s history
Impact of Covid-19 was very difficult
How much of the country was flooded in the first 2 months?
40%
How many people were affected?
3.3 million
How many homes were waterlogged?
750,000
How many hec
What marginal improvements are needed?
Diet & medical support