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Where is the worlds population distributed

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Why is population growing at different rates in different places? ... Global, national, and local demographics are ... High Lands (Tibet, Himalayas, Andes) WFHS ... – PowerPoint PPT presentation

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Title: Where is the worlds population distributed


1
Where is the worlds population distributed?
  • Chapter 2, Key Issue 1

2
Major unit questions
  • Where are people distributed?
  • Where is population growing?
  • Why is population growing at different rates in
    different places?
  • Why is local diversity in growth rates important?

3
demography
  • Study of population characteristics
  • Global, national, and local demographics are
    studied
  • Demographics are used for public policy issues,
    economic and business reasons, etc.

4
Population concentrationsWhere is everyone?
5
Population centers
  • 4 regions 2/3rds of World Population
  • South Asia, East Asia, Western Europe, SE Asia
  • 2/3rds live within 300 mi. of ocean, 80 within
    500 mi
  • Between 10 and 55 degrees N latitude
  • Concentrated in urban areas and along rivers

6
Other population centers
  • Northeast coast of North America
  • West African coast
  • Mexico City
  • Andean coastal South America
  • Small clusters compared to SE Asia, etc.
  • Part of ecumene

7
Why are some areas unpopulated?
  • Dry lands (Sahara, Gobi, Mojave)
  • Wet Lands (Amazon, C. Africa)
  • Cold Lands (Siberia, NWT, Iceland)
  • High Lands (Tibet, Himalayas, Andes)

8
Reasons for sparse population (clockwise from
top) NWT, the Amazon, Tibetan highlands, the
Sahara
9
Population Density
  • Density number of people occupying area of land
  • Arithmetic density people/land area
  • Physiological Density people occupying arable
    land
  • Agricultural Density ratio of farmers to arable
    land

10
Examples of density
Hong Kong High Population density
Agricultural density
Cairo physiological density
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