Three Gorges Dam

Question 0

What is special about it?

Answer 0

• it’s the deepest (150m in some gorges)
• third longest (6300km)
• fourth biggest discharge
• ninth biggest drainage basin
• it has the highest flood death rate

Question 1

What is the name of the river?

Answer 1

The Yangtze River, which flows through china

Question 2

What is common?

Answer 2

Seasonal flooding

Question 3

When is China’s rainy season?

Answer 3

June to August

Question 4

What’s during the rainy season often cause floods?

Answer 4

Huge increase in river discharge

Question 5

What years have the last major floods occurred?

Answer 5

1931, 1935, 1949, 1954, 1998

Question 6

How many people did the flood in 1954 kill, make homeless, how much land did it cover and what City?

Answer 6

33169 people
Over 18 million
193 000 km3
Wuhan for over 3 months

Question 7

How many people did the 1998 flood kill and make homeless? How much did it Cost?

Answer 7

3000
14 million
$26 billion

Question 8

Why is managing the river effectively essential?

Answer 8

• fertile floodplains produce 70% of China’s rice
• river 50% of fresh water fish
• 1/3 of China’s population live in the river basin
• major cities such as Whunan and nanjing are located next to the river

Question 9

What flood defences do they use?

Answer 9

Majority hard engineering
Dams- three gorges dam
Levees

Question 10

How many km of levees are there along the middle and lover parts of the river?

Answer 10

3600

Question 11

What are the problems with the leeves?

Answer 11

• in 1998 floods many broke which contributed to devastating floods
• after this many reinforced, effective in 2002 floods, but the flood was less severe

Question 12

When did work begin of the dam? When did it open?

Answer 12

1994

2008

Question 13

How high is it?

Answer 13

185 m

Question 14

How long is resivoir? What is the capacity

Answer 14

600km

39km3

Question 15

How many turbines does the flow water turn?

Answer 15

26

Question 16

What has been built so ships can pass?

Answer 16

Locks

Question 17

How much did the dam cost?

Answer 17

26 billion

Question 18

What has it reduced major flooding to from?

Answer 18

Every 10 years to once ever 100

Question 19

How much electricity will the turbines produce? How much of China’s demand will this supply?

Answer 19

22.5 gigs watts

3%

Question 20

What has the reduction of flooding done and therefore what has it increased?

Answer 20

• safer to navigate up Yangtze
• river shipping increased
• bigger ships because reservoir made deeper

Question 21

How many people have to relocate because of reservoir?

Answer 21

2 million

Question 22

How many cities and villages submerged?

Answer 22

13

1352

Question 23

How many factories and sites of cultural interest will it flood? Example?

Answer 23

657

1300 sites zhang fei temple

Question 24

What could the dam destroy, example?

Environmental effect

Answer 24

Destroy habitats and endangered species

100 baiji dolphins, could reduce food supply

Question 25

What will the dam not do?

Answer 25

Protect everyone

Question 26

What did china state council say about dam?

Answer 26

“There are urgent problems that need addressing such as stabilising and improving living conditions for relocated people, protecting the environment and preventing geological disaster.”