Flashcards in China Three Gorges Dam Deck (52)
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1
How long did it take to complete the dam?
17 years
2
When was the dam completed?
2009
3
How long is the dam?
2.3 km
4
How high is the dam?
> 100 m high
5
How much water in the reservoir?
> 1 trillion
6
2 reasons for construction of dam
- prevent seasonal flooding which caused deaths
- HEP for central and eastern China
7
2 social pros of dam
1. Reduced risk of flooding
2. Reservoir increases water availability
8
By how much has the risk of flooding reduced?
1 in 10 years ---> 1 in 100
9
How many people were affected and how many died in 1954 floods?
19 M affected
30,000 deaths
10
What can the reservoir water be used for? (3)
Irrigation, industry and consumption
11
How many people have more water and in which part of China due to dam?
400 million in water deficient northern China
12
3 economic advantages of dam
1. HEP
2. Improved navigation along river
3. Increased tourism
13
How much electricity does the dam generate per hour?
84 billion KW of electricity per hour
14
How many people does the dam supply energy to who previously had no power?
60 million people
15
How many nuclear power plants is the HEP from the dam equivalent
15
16
How much further upstream can ships travel and why?
6000 km
River deeper
17
By how much has trade increased due to the dam?
Transportation of goods increased from 10M to 50M tonnes per year
18
How much have transportation costs been reduced by?
Between 30 and 37% cheaper
19
By how much has the max ship size allowed on the river increased?
Max was 1500 ton
Now 10,000 ton
20
Why and to where has tourism increased?
- Reservoir view pleasing
- Largest dam
- Ocean vessels can travel further inland and reach Chongqing
21
1 environmental pro of dam
Reduced use of non renewable resources in future due to cleaner and renewable HEP
22
How much CO2 prevented if dam used to full capacity?
100 M tons
23
How many tonnes of coal is equivalent to the dam turbines?
40 M tonnes
24
4 social cons of dam
- People displaced
- Towns and villages flooded
- Risk of landslides
- Loss of historical sites
25
How many people displaced for reservoir and from how many villages?
1.2 M people from over 10 villages
26
How many more people will be displaced by 2020 and why?
530,000 people to relieve pressure on weak slopes
27
How many towns did the reservoir submerge?
140 towns
28
Which city was flooded and by how much was water level raised by?
Wuhan
Water level raised by 600 foot
29
By how much has the risk of landslide increased and why?
70%
Due to water level reaching 175 meters
30
