• Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

To what extent do rates of natural population change vary globally?

Extracts from this document...

Introduction

´╗┐To what extent do rates of natural population change vary globally? Population change is the growth or decline of the total population over a period of time. It can occur either naturally or by migration, but in this essay I'll be looking at the natural factors. The two primary factors of population change are birth rate and death rate, if births outnumber deaths then the global population expands, this is natural increase, if deaths outnumbers births then the global population declines, this is natural decrease. These are influenced by demographic, social, economic and political factors. The demographic transition model (DTM) refers to the transition from high birth and death rates to low birth and death rates as the world develops from pre-industrial times to industrialized economic times. It has 4 stages, stage one is a high stationary country, stage two is a early expanding country, stage three is a late expanding country and stage four is a low stationary country. By identifying nations at different stages of this model, we can examine global variation in natural population change. ...read more.

Middle

The fall in death rate could be due to improvements in the food supply brought about by higher yields in agriculture and better transportation of food, this prevents death due to starvation and lack of water. Another reason for the fall in death rate could be because of improvements in health care so the life expectancy increases. The birth rate still remains high because the countries are still a LEDC so there will be very little contraception and they will have large families because children can contribute to households at a early age, however there is usually a decline in infant mortality rates because of the improvement in health care. An example of a country that is in stage two is Afghanistan, they are a LEDC country. Their birth rate is 39.3 births/1,000 population, their death rate is 14.59 deaths/1,000 population, their infant mortality rate is 121.63 deaths/1,000 live births, the life expectancy is 49.72 years and their population is 35.3 million people. In stage 3 there is a decline in birth rate and the death rate stays the same, then the two eventually meet at 13,000 per year, the extent of this is that the population stabilises. ...read more.

Conclusion

This means they will have a low death rate because they will have very good health care, a good standard of living and so they will have a high life expectancy. They have a low birth rate because of a government policy, which is the one child policy so parents were only allowed to have one child which lowered the birth rate. The birth rate of China is 12.31 births/1,000 population, the death rate is 7.17 deaths/1,000 population, the infant mortality rate is 15.62 deaths/1,000 live births and the life expectancy is 74.84 years. The extend of this is China has a high steady population 1.34 billion people. Development influences many factors of which in turn can influence natural population change. These factors are living standards, quality of life, rising wealth, advancing materialism, advances of sustainability and extended social services. I think the most important factor which influences population change though is the extend of living standards, this is because if a country has good living standards their overall life expectancy will increase and so there death rate will increase so this will show a natural rise in population because there will be more births than deaths. ...read more.

The above preview is unformatted text

This student written piece of work is one of many that can be found in our AS and A Level Population & Settlement section.

Found what you're looking for?

  • Start learning 29% faster today
  • 150,000+ documents available
  • Just £6.99 a month

Not the one? Search for your essay title...
  • Join over 1.2 million students every month
  • Accelerate your learning by 29%
  • Unlimited access from just £6.99 per month

See related essaysSee related essays

Related AS and A Level Population & Settlement essays

  1. Geography revision - flooding - Urbanisation - Population problems

    Buildings on the outside are more recent. BUT this only takes account of expansion and demand, it ignores intervention by governments such as slum clearance. :| Hoyts Sector Model - By Hoyt's time public transport was very important, so his model is based around major transport lines from the CBD.

  2. Free essay

    the natural environment - Geog essey

    There are Hills in the north and south are that are bisected by a central valley. The north is exceptionally flat, consisting mainly of deposits built up by deposition from glacial advances from Western Scotland during colder times. The Isle of Man has only one mountain higher than two thousand

  1. Does a population hierarchy exist on the Ards Peninsula?

    its services, we see that it has vets and doctors explaining the high Centrality Index This proves the point that since it is in the middle of the peninsula, it provides services for other settlements all over the rest of the Ards Peninsula.

  2. To What Extent did the Gradual Abandonment of the Maoist Development Paradigm Between the ...

    These figures of increased and more varied eating habits are validated by data from a separate source that shows increased consumption of every major foodstuff between 1980 and 1984. The average peasant ate 138 jin (one jin is equivalent to just over 500 grams)

  1. In some countries such as MEDCs population is stabilizing due to low birth rates ...

    By 1960 CBR had peaked at 45/1000. The sheer size of the Chinese population put increased demands on services such as food, housing, education and employment. In fact during the 1970s the government feared that further population increases would result in mass starvation by the end of the century. This triggered the government to enforce anti-natalist policies.

  2. Theories of population.

    In addition, developing agriculture techniques takes time. Thus, to have more children has positive effect upon those farmers. For instance this is the simplest method to have more labors, which may produce additional outputs over time. Population growth has a positive effect upon the creation of infrastructure, such as roads, irrigation system and so on.

  • Over 160,000 pieces
    of student written work
  • Annotated by
    experienced teachers
  • Ideas and feedback to
    improve your own work