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Revision:Population Geography and Demography
From The Student RoomTSR Wiki > Study Help > Subjects and Revision > Revision Notes > Geography > Population Geography and Demography Population Geography is the study of spatial variations in distribution, density, composition and growth of human numbers on earth. It is important because it links all other aspects of geography together. Population is based on the natural increase. This is defined as the birthrate minus the deathrate. The birthrate is the number of babies born per 1000 people per year and similarly, the deathrate is the number of people who died per 1000 people per year. This then gives us the natural increase of a population
DemographyDemography is the study of population characteristics. It is significant because:
Since WW2, the population has exploded. There are a number of reasons behind it mainly due to a better economy. But there are other factors mainly with LEDCs LEDCsThe problem with LEDCs is that there is not a lot of medication available to families, so for that reason, the infant mortallity rate was very high. This then caused families to have lots of children so that they work on the farm and the family does not have to pay for labour. But now, medication is becoming more available. This means that the infant mortality rate is decreasing but families are still having children which means that the natural increase is very high. MEDCsIn MEDCs, there is a lot more education and help for people who do or do not want a child. Methods of contraception are available and so the birthrate is controlled and with the medication now available, so is the death rate meaning that the natural increase is very low Case StudiesChina One Child PolicyChina has a population of over 1 billion people, and so in the 1970s the government of china needed to find a way to control to growth of the population so they brought in the 2 child policy. This then allowed each family to have two children but the government found that the policy was not controlling the population very well. So in 1979, the policy was changed to only 1 child per family CriticismsThe policy has been criticised both inside and outside of China, mainly because of the social problems of the policy. Because the policy restricts growth of the population, it means that when the workforce comes to retire, there will not be sufficient numbers of children (then young adults) to come in and fill their place at the factory, meaning that there is not enough money to support the elderly dependants. Exceptions
Penalties
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