Population Geography Demography – the statistical study of human populations.
CONCEPTS OF POPULATION. Demography POPULATION GEOGRAPHY.
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Transcript of CONCEPTS OF POPULATION. Demography POPULATION GEOGRAPHY.
![Page 1: CONCEPTS OF POPULATION. Demography POPULATION GEOGRAPHY.](https://reader035.fdocuments.net/reader035/viewer/2022062311/5a4d1b8d7f8b9ab0599bf8f4/html5/thumbnails/1.jpg)
CONCEPTS OF POPULATION
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Demography
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POPULATION GEOGRAPHY
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GEOGRAPHIC ANALYSIS OF POPULATION- Distribution
• 90% live in northern hemisphere
- 2/3 located 300 miles to ocean• ½ live on 5% of the land on Earth
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Dot Map
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GEOGRAPHIC ANALYSIS OF POPULATION- Scale
• SMALL scale
OR
• Medium scale?
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SMALL or LARGE SCALE?
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DENSITY - Population Concentrations
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ARITHMETIC DENSITY Total # of people / by total land area
USA 300 million people 9 million sq kilometers of land space
Arithmetic density = 33 people per sq Km
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Physiologic Population Density• Measures the pressure people
place on land to produce enough food. Divides the pop by the sq km of arable land
Arithmetic density PPD
Egypt: 74 3,500
90% of Egyptians live in the Nile Delta and live in 5% of the country's territory - 44% in urban areas and most in some 4,000 villages.
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CARRYING CAPACITY• The number of individuals who can be supported in a given
area within natural resource limits, and without degrading the natural social, cultural and economic environment for present and future generations.
• The carrying capacity for any given area is not fixed. It can be altered by improved technology, but mostly it is changed for the worse by pressures which accompany a population increase.
• As the environment is degraded, carrying capacity actually shrinks, leaving the environment no longer able to support even the number of people who could formerly have lived in the area on a sustainable basis.
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CARRYING CAPACITY• China food production will
decline by 37% by the late 21st century
• China's population will to 1.5 billion by 2050 placing a strain on the entire carrying capacity of the world.
• reduction in agricultural capability in China (as in other world regions) is largely due to the world Water crisis
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Population Pyramid: TEXAS
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JAPAN