Ch. 2 Key Issue 1 Where is the World’s Population Distributed?
Feb 22, 2016
Ch. 2 Key Issue 1
Where is the World’s Population Distributed?
Critical Issues in Population Geography• More people are alive today than at
any other time in human history• The world’s population increased at a
faster rate during the second half of the twentieth century than ever before.
• Virtually all population growth today occurs in less developed countries (LDCs), a.k.a. the economic “periphery”
• Are we outgrowing our food supply?
Population distributions
• Description of locations where people live on Earth’s surface.
• Dot maps are best• 1/3 of population lives in China and
India
Where Is the World’s Population Distributed?• Population concentrations–Two-thirds of the world’s
population are in four regions (Eurasia, 4 billion/7 billion):• East Asia (Yellow/Yangtze)• South Asia (Indus/Ganges)• Europe (coal fields, Industrial
Revolution)• Southeast Asia
North American Cluster
• Clustered on the East coast- why?–Bosnywash Megalolpolis
• Compare: –NY: 5309 ppl/sq. mi–Mumbai, India: 76,820– Jakarta, Indonesia: 27,137
http://mapmaker.education.nationalgeographic.com/?ar_a=1&b=1&f=129&bbox=147.51848%2C-64.01450%2C120.79973%2C64.01450&ls=000000010000&t=1
Population Distribution
Figure 2-2
Describe where population is by answering questions:Where are the clusters? What is the distribution?Why are they located there?
Compare the two maps. How do they tell the same story w/o same info?
How do we get population statistics?
• Census- population count• Informed estimates rather than accurate
counts• Importance of counting?– More tax revenue– Better representation of minorities or
disadvantaged groups
The Ecumene
• The ecumene describes the areas of human habitation.
• Examining changes to the ecumene reveals some types of areas where humans do not live in large numbers
• Populations used to cluster close to agricultural areas- where they could grow food
–People generally avoid:• Dry lands• Wet lands• Cold lands• High landsCan we think of any places under these categories?
Sparsely populated regions
Population Density–Arithmetic density- answers the
“where?”• Where are people living on a piece of land?
–Physiological density (food security)–Agricultural density (development)–Physio. and Ag. answer the “why?”• Why aren’t people evenly distributed across the
land?
Comparing Densities
• High Physiological means arable land must feed more people (Egypt); possible importing of food from other countries and/or hunger problems
• Low Agricultural means there are less farmers = more developed, better farming due to better technologies/techniques (US)
Gender and population• Social (what society says), not biological (what
science says), difference• Gender roles are tied to economic activity
–Pre-agriculture- even responsibilities–Plow agriculture gave men land rights–Industrialization kept women at home