human population
Download
Skip this Video
Download Presentation
Human Population

Loading in 2 Seconds...

play fullscreen
1 / 20

Human Population - PowerPoint PPT Presentation


  • 65 Views
  • Uploaded on

Human Population. Chapter 9. Population success. Thailand had uncontrolled growth 3.2% in 1971 According to the rule of 70, how long until their population doubles? That’s right 21.9 years, and yes, that is really, really fast

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' Human Population' - duncan-shaw


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
population success
Population success
  • Thailand had uncontrolled growth 3.2% in 1971
  • According to the rule of 70, how long until their population doubles?
  • That’s right 21.9 years, and yes, that is really, really fast
  • Thanks to some intervention and education, a major tragedy was averted
good job thailand
Good job Thailand
  • How did they do it
    • Government supported family planning
    • High literacy rate among women
    • Increase in economic role of women
    • Better health care for mothers/children
    • Responsive public
    • Flexible government to try different approaches
    • Cooperation of cultural/religious leaders
population change
Population change
  • (Birth + immigration) – (death + emigration)
  • ZPG
  • World growth rate as of 2000 is 1.35%
  • Down from 2.2% in 1963
moving in the right direction but
Moving in the right direction, but
  • Slower does not mean slow
  • We are still scheduled to double in 52 years
  • We are adding 82 million people per year, roughly a New York every month, a Germany every year, a united states every 4 years
  • How will this affect resource use?
let s have a baby
Let’s have a baby
  • Replacement level fertility – number of children to replace parents 2.0 in theory, but most developing countries it is 2.1 to as high as 2.5 due to infant mortality
  • Total fertility rate – average number of children women have. Currently 2.9, which means in 150 years there will be 296 billion people !!!!
slide7

World

5 children per women

2.9

Developed

countries

2.5

1.5

Developing

countries

6.5

3.2

Africa

6.6

5.3

Latin

America

5.9

2.8

Asia

5.9

2.8

Oceania

3.8

2.4

North

America

3.5

2.0

Europe

2.6

1.4

Fig. 11.7, p. 241

2000

1950

key factors for tfr
Key factors for TFR
  • Children as labor force
  • Urbanization
  • Cost of raising and educating
  • Education and employment for women
  • Infant mortality rate
  • Average age at marriage
factors affecting death rates
Factors affecting death rates
  • Food supply
  • Nutrition
  • Medical improvements
  • Sanitation
  • Drinking water improvements
age structure diagram
Age structure diagram
  • Usually broken into three categories
  • Prereproductive 0-14
  • Reproductive 15-44
  • Post reproductive 45-dead
  • The shape of the age structure diagram is useful in determining future growth
slide11

Male

Female

Male

Female

Rapid Growth

Guatemala

Nigeria

Saudi Arabia

Slow Growth

United States

Australia

Canada

Fig. 11.16a, p. 247

Ages 0-14

Ages 15-44

Ages 45-85+

slide12

Male

Female

Male

Female

Zero Growth

Spain

Austria

Greece

NegativeGrowth

Germany

Bulgaria

Sweden

Fig. 11.16b, p. 247

Ages 0-14

Ages 15-44

Ages 45-85+

demographic transition
Demographic transition
  • As countries become industrialized their death rates decrease and their population grows
  • Later their birth rates decrease and population stabilizes
slide14

High

80

70

60

50

Birth rate and death rate

(number per 1,000 per year)

Relative population size

40

30

20

10

Low

0

Time

Stage 1

Preindustrial

Stage 2

Transitional

Stage 3

Industrial

Stage 4

Postindustrial

Birth rate

Death rate

Total population

Low

growth rate

Increasing Growth

growth rate

Very high

growth rate

Decreasing

growth rate

Low

growth rate

Zero

growth rate

Negative

growth rate

Fig. 11.26, p. 255

demographic transition1
Demographic transition
  • Preindustrial
    • Stable population – high birth/death rate
    • Poor living conditions
    • Low per capita income
    • Poor sanitation
    • High infant mortality
    • Low use of birth control
demographic transition2
Demographic transition
  • Transitional
    • Industrialization begins
    • Increased food supply
    • Better sanitation/healthcare
    • Infant mortality drops sharply
    • Birth rate still high (culture)
    • Population grows rapidly (2.5-3% a year)
demographic transition3
Demographic transition
  • Industrial
    • Industrialization is widespread
    • Per capita income is up
    • Birthrate decreases sharply
    • Birth rate approaches death rate
    • Slow population growth
    • Most developed countries are in this phase
demographic transition4
Demographic transition
  • Postindustrial
    • Birth/death rates are equal
    • Population stabilizes or even drops slightly
    • Most of Europe is here
    • 85% of the world still needs to reach this stage
slide19

India

China

Percentage

of world

population

16%

21%

Population (2000)

1 billion

1.3 billion

Population (2025)

(estimated)

1.4 billion

1.4 billion

Illiteracy (%of adults)

47%

17%

Population under age 15(%)

36%

25%

Population growth rate (%)

1.8%

0.9%

Total fertility rate

3.3 children per woman (down from 5.3 in 1970)

1.8 children per woman (down from 5.7 in 1972)

Infant mortality rate

72

31

Life expectancy

61 years

71 years

Fig. 11.29, p. 257

GNP per capita

(1998)

$440

$750

infrastructure
Infrastructure
  • How will the increasing population affect each nations infrastructure?
    • Homes
    • Jobs
    • Transportation
    • Food supply
    • Taxes
    • Schools
    • Energy needs
    • Resource needs
ad