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Alevel geography A* case study notes for coasts aqa.
Typology: Cheat Sheet
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It’s surrounded by India and is in southeast Asia.The Sundarbans is a coastal zone occupying the world’s largest delta, that extends over 10,000km^2 of southern Bangladesh and India on the Bay of Bengal. The delta is formed forms the sediment deposited by three of the world's largest rivers. Features of the coastal system:
deforestation
Mangroves provide timber for construction, firewood and furniture. Rich ecosystems of mangroves provide the local population with fish, crabs, honey and Nila palm leaves for roofing and baskets.
Tourists want to visit the mangroves and wildlife. Flat fertile land is ideal for growing crops, particularly rice. A power plant using water or solar might provide power for people. Mangroves are a natural defence against flooding; they absorb excess water and make it easier to live and grow crops. Cargo ships transport goods such as oil and food in for people to buy and trade. Mangroves protect against coastal erosion – the roots bind soil together.
Flooding can lead to salinisation making it hard to grow crops. Low-lying land is at risks from rising sea levels due to global warming. Dangerous animals can attack humans.
Lack of fresh water for drinking because water is diverted from rivers for irrigation and agricultural use. Growing population means more fuel and farmland is needed, so mangrove forests are being removed which further increases the risk of flooding. Lack of employment and income opportunities. Only 20% of houses have electricity which means communication is difficult and many residents don’t receive flood warnings. Access is difficult with few roads, many of which are poor quality. It’s difficult for residents to receive healthcare and education.
Cyclones shelters and early warning systems: Use of open access natural resource: Laws: Legal frameworks and services provided by a number of formal government and NGO organisations, alongside the traditional laws help to manage the region.
Salt-resistant rice crops: New rice varieties that can survive being submerged in sea water for 2 weeks Increase tourism Sustainable farming and ecotourism NGO run education programmes to encourage farmers to return to traditional ecologically-friendly methods. Organisations like USAID train communities to become resilient to future climate shocks, including improving agriculture techniques. NGOs- education and disaster preparation: They provide education and training about community level preparation for natural disasters – planning and preparation can help reduce impacts. Build houses and cyclone shelters on stilts Built multipurpose cyclone shelters equipped with communication equipment, which also serve as primary school equipment. They built 100 shelters in the coast between 2011 and 2015, 750 were proposed in 2019. NGOs – latrines, sanitation, rainwater storage Build latrines on higher ground and educate communities about water and sanitation. Install storage tanks for rainwater in areas at most risk from indundation by salt water. Distribute water tight containers to store important belongings