Case study of Sundarbans - global Flashcards
How was the sundarbans created?
When an area floods, salt is left behind and over time this has formed the sundarbans, the sediment comes from India and Bangladesh rivers.
Why are mangroves so beneficial to the sundarbans?
They stabilise the coastline, they protect the coastline from storm surges, waves and tides.
They also provide habitats for fish and other organisms
What are the inputs of energy into the Sundarbans?
South westerly fluids
Sea water from the Bay of Bengal
River water from the north himalayas
What are some of the transfers of the sundarbans?
Transport of sediment by wind
Deposition of sediment
Colonisation of sand tolerant plants
Erosion of sediment
What are some of the outputs of the sundarbans?
Flat, low lying land made from deposited sediment
Sand dunes
Char islands
Why is the sundarbans so at risk from flooding?
Very low lying and this makes them at risk from sea levels rising from global warming.
Sundarbans tends to lose around 2m of land a year
Why are cyclones a risk to the sundarbans?
They are very common over bengal and the sundarbans have a continuous high temp which cyclones need.
Why is soil in the sundabans losing fertility?
The soil has high levels of salinity and so this is leeching the soil.
This causes a loss of produce and agriculture
What makes the sundarbans unstable?
Sea level rise is capable of causing mass destruction
Because they’re made from deposited sediment, the currents can move this sediment
What makes it hard to get supplies to the island?
It is hard to get through the mangroves and so many locals have to be self sufficient
How many people die from bengal tigers a year?
around 50
What traditions jobs are now banned?
Honey collection and fishing
What is Intergrated Coastal Zone Management?
Aims for the coordinated application of the different policies affecting the coastal zone and related policies.
Protects activities such as aquaculture, tourism, shipping, infrastructure
