2 Population DensityRefers to the number of people in a certain area of landFormula to calculate:Population ÷ Land area = # of people / km2NL for example:(Population) ÷ (Land Area) = # ppl/km2551,792 ÷ 405,720 km2 = 1.36That is there is: people/km2
3 Population Density What is the population density of: Brazil BangladeshPopulation 127,117,967Land Area 133,910 km2POPULATION DENSITY = 949 people/ km2BrazilPopulation 171,853,126Land Area 8,456,510 km2POPULATION DENSITY = 20 people/ km2
4 How populated? Densely populated = More than 100 people/ km2 Sparsely populated = Less than 100 people/ km2Brazil?20 people/ km2Sparsely populatedBangladesh?949 people/ km2Densely populatedNL?1.36 people/ km2
5 Population Density NOT a good indicator… why not? Assumes people are equally/evenly spread out.Assumes all land is usableAssumes ALL land is USEDFor example:A country can have a low population density BUT…Cities within that country can have a very high population density (densely populated).Country of Spain = people/ km2As a country - Sparsely populated (<100 ppl/km2)City of Barcelona, Spain = 3404 people/ km2
6 Population Distribution Describes how people are spread out.Where people live!When combined with population density gives a more accurate picture of the population.Where are the heavier concentrations of people versus the sparsely populated areas?
7 Identify global patterns of population distribution Use MAP ( figure 18.5) on page 304Make reference to density AND locations
8 North America Sparsely populated in north Densely populated along North eastern U.S. and south western U.S.WHY?Transportation? Climate? Soils/Land? Resources??
9 South America Sparsely populated in Center Densely populated along Western CoastBut most dense south eastern Brazil.WHY?
10 Europe Sparsely populated in Extreme North Densely populated throughout.WHY?
11 Asia Sparsely populated in North & center Densely populated in South EastWHY?
12 AfricaSparsely populated in SaharaDensely in North & Sub SaharaWHY?
13 Factors affecting – Population Density and Distribution Where people live…in greater concentrations!!Climate:Economics:Transportation:
14 The CLIMATE Factor – Population Density and Distribution Warmer comfortable climates attract people.Notice that most people live in a moderate climate region.
15 The ECONOMIC Factor – Population Density and Distribution Economics:Used to be around resources and good land!!BUT No longer ! Why not? (Hint: what sector is now most important in Canada?)Industrialization & manufacturing has caused Urbanizationand now the information age causing the development of suburbs (away from urban!).
16 The TRANSPORTATION Factor – Population Density and Distribution Coastal regions attracted business and people because of ocean transportation.It was true for initial settlement and is still true today!TODAY! Most major cities are located on the coast.