CS: Water Supply in NE China

Question 1

Population of Beijing

Answer 1

22million

Question 2

Population of Tianjin

Answer 2

11million

Question 3

What is Beijing’s population growth rate?

Answer 3

2.5%

Question 4

What are Beijing and Tianjin’s populations growing?

Answer 4

rural-urban migration

Question 5

What % of water in China is used for agriculture?

Answer 5

65%

Question 6

What is China’s demand for water per year?

Answer 6

4.9billion m^3

Question 7

What has industrial output increased by over the past 20years?

Answer 7

X6

Question 8

What has happened to water used for industrial output in China?

Answer 8

increased but only marginally

since shift to high-tech production away from heavy industry

Question 9

What % of China’s water from aquifers?

Answer 9

60%

Question 10

When did China suffer from extreme droughts?

Answer 10

70s-80s

Question 11

What happened when China suffered from extreme droughts?

Answer 11

demand for irrigation increased

Question 12

Since the 1970s what has China’s water table done?

Answer 12

dropped 40m

Question 13

The drop in China’s water table and over abstraction has led to what?

Answer 13

Beijing subsiding 0.5-1m annually

Question 14

What is Tianjin’s surface water limited by?

Answer 14

Tianjin is downstream from Beijing

so suffers from upstream’s withdrawal’s and pollution

Question 15

What type of pollution affects the nervous system?

Answer 15

mercury

Question 16

What type of chemical waste has been found in China’s water?

Answer 16

PCBs (banned)

Question 17

How many tonnes of industrial waste is released untreated globally per year into waterways?

Answer 17

400billion tonnes

Question 18

When does most rain in northern china fall? What does this create throughout the year?

Answer 18

July-September

means seasonal imbalances throughout the rest of the year