Three types of population density
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- Arithmetic density
- Arithmetic density refers to the total number of people divided by the total land area
- Arithmetic density lets geographers compare the number of people living on a given piece of land in different regions of the world
- Physiological density is the number of people supported by a unit area of arable land
- Physiological density
- Comparing physiological and arithmetic densities helps geographers understand the capacity of the land to yield enough food for the needs of the population
- Agricultural density is the ratio of the amount of arable land
- Agricultural density
- measuring agricultural density helps account for economic differences.Geographers examine a country's physiological and agricultural densities together.
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