Coasts - Sundarbans Case study Flashcards

(32 cards)

1
Q

Where is the Sundarbans region?

A

Southwest Bangladesh and East India on the delta of the Ganges on the Bay of Bengal

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2
Q

What is the Sundarbans region?

A

The largest mangrove forest in the world

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3
Q

What is the topography of the Sundarbans region?

A

Very flat and low-lying

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4
Q

What is the Sundarbans region intersected by

A

Thousands of channels containing sandy or silty islands

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5
Q

What are large regions of the Sundarbans protected by?

A

A National Park or forest reserve

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6
Q

What rare species is the Sundarbans home to?

A

Orchids, white-bellied sea eagles, Royal Bengal tigers, Irawadi dolphins

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7
Q

In it’s natural state the coastal system is in …

A

Dynamic Equilibrium

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8
Q

Why does the size of the sediment store remain roughly the same?

A

Material is deposited by the rivers and eroded by the sea

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9
Q

How many people is the Sundarbans home to?

A

4 Million

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10
Q

What are the types of opportunities provided by the Sundarbans?

A
  • Economic benefits through natural products
  • services
  • Development to increase the wealth of Bangladesh
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11
Q

What are the opportunities through natural products that are available?

A
  • Flat fertile land ideal for crops (rice)
  • Rich ecosystem provides fish, crabs and honey
  • Forests provide nipa palm leaves and timber for construction, firewood and furniture
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12
Q

What are the services provided?

A
  • Natural flood barrier
  • Protection from coastal erosion (roots bind soil together)
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13
Q

What are the opportunities provided for development?

A
  • Tourism
  • Dredging of channels to allow passage of ships
  • Power plant just north of the region
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14
Q

What are the first 4 risks created by the Sundarbans for occupation and development?

A

1) Lack of fresh water
2) Mangroves removed for population (increased flooding)
3) Flooding leads to salinisation (more saltiness) so harder to grow crops
4) Dangerous animals that attack humans

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15
Q

What are the second 4 risks that are created by the sundarbans for occupation and development?

A

5) Lack of employment and income
6) At risk from rising sea levels
7) Lack of communication so no flood warnings
8) Few roads so limitations in development, goods, healthcare and education

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16
Q

What are the main ways that people have tried to overcome these risks?

A

1) resilience
2) mitigation
3) adaptation

17
Q

What is resilience?

A

Being able to cope with the challenges the environment presents

18
Q

What is mitigation?

A

Reducing the severity of hazards or other problems

19
Q

What is adaptation?

A

Adjusting behaviour to fit the environment

20
Q

What has been done to improve the population’s resilience?

A
  • Access to clean water and sanitation
  • Better roads and bridges built
  • Electricity and solar panels are being extended to more areas
  • Effort to decrease poverty
  • Training in sustainable methods of fishing and farming
21
Q

Who increased access to clean water and sanitation

A

The Public Health Engineering Department

22
Q

What is a disadvantage of building better roads and bridges?

A

Deforestation and pollution

23
Q

What are two advantages of increased electricity?

A

Flood warnings and Employment

24
Q

Who provides training in sustainable methods of fishing and farming?

25
What has been done as a mitigating action in the Sundarbans?
- 3500 km of embankment built to prevent flooding - Coastal management projects -Attempts to mitigate the impacts of extreme events
26
What is a disadvantage of the 3500km of embankment?
They are gradually eroded with 800km vulnerable in storms
27
What do the coastal management projects aim to do for mitigation?
Protect existing mangroves and replant areas that have been removed to protect against flooding
28
A disadvantage of coastal management projects is that..
it is difficult to prevent illegal forest clearance
29
Example of an attempt to mitigate against extreme events
NGOs provided funding for warning systems and cyclone shelters
30
What has been done as an adaptation in the Sundarbans?
- Salt-resistant rice is grown - Projects to increase tourism such as boat trips and conservations along with National Park - Houses are built on stilts - Sustainable adaptations
31
What is a disadvantage of salt-resistant rice?
Smaller crop range reduces biodiversity and increases vulnerability to pests/diseases
32
Example of sustainable adaptations
Non-intensive farming practices and promoting ecotourism