GEOG 1HB3 Lecture Notes - Lecture 12: Population Pyramid, Dependency Ratio, Total Fertility Rate
15 Apr 2016
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Document Summary
Two-thirds of the world"s inhabitants are clustered in four regions. Arithmeic density measures the total number of people living in an area. Physiological density and agricultural density show spaial relaionships between people and resources. The number of people divided by the total land area. They compare condiions in diferent countries because both measurements are easy to obtain. Number of people supported by a unit of arable land, which is the land suited for agriculture. The higher the physiological density, the greater the pressure that people may face on the land to produce enough food. Provides a relaionship between the size of a populaion and the availability of resources and gives an idea of the capacity of the land. The number of farmers to the amount of arable land. Geographers most frequently measure populaion change through three indicators. Indicators of populaion change vary widely among regions. Is the percentage by which a populaion grows in a year (excluding migraion)
