Physical geography of India and World
Economic and Human Geography of India and World
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The World Population Distribution, Density and Growth

The World Population Distribution, Density and Growth

Here we study the world population

  • Distribution
  • Density
  • Growth

NOT GOLD BUT ONLY WOMEN CAN MAKE A PEOPLE GREAT AND STRONG.

  • Atthe beginning of the 21st century , there are recorded the presence of over 6 billion population.

Pattern of distribution in world

  • According to George b. Gressey about the population of Asia.
  • “Asia have many places where people are few and many places where people are very many.”

FROM DATA-

  • 90% of the world population lives in about the 10%of the land area.
  • 60% of the total world population is distributed in following 10 countries.
  1. China
  2. India
  3. U.S.A.
  4. Indonesia
  5. Brazil
  6. Pakistan
  7. Bangladesh
  8. Nigeria
  9. Russia federation
  10. Japan

DENSITY OF POPULATION

Per square km. Population distributed is called density.

Density= population / area

From data-

  • More than 200 person per square km. North eastern part of U.S.A. and North Western part of Europe. And south , south east and south asia.
  • Very low density population the hot and the cold desert.

Factor influence the distribution of population:

  1. Geographical factor
  2. Economic factor
  3. Social and cultural factor

1. Geographical factor

  • Availability of water:People prefer to live in an area where fresh water is easily available.
  • Availability of landforms:.People prefer to live in an area Where flat plain with gentle slope.
  • Availability of climate: An extreme very hot or cold desert is harmfull for human.
  • Availability of soil: Fertile soil are important for the agriculture and allied activities.

2. Economic factor

  • Minerals: areas with mineral deposit attract the mining and industrial activity.
  • Urbanization: Cities offer employment opportunity, better education, medical facility than rural.
  • Industrialization: it provides job opportunity and attract a very big mass.

3. Social and cultural factor

People tends to move from places where there is political unrest.

POPULATION GROWTH , GROWTH RATE, NATURAL GROWTH

GrowthChangementinpopulationinparticularareabetween a particular time known as population growth.

Growth Rate- Change in population when expressed in the percentage called population growth rate.

Natural Growth-

Natural growth=Births – deaths

Actual Growth-

Actual Growth= Birth+ in migration -death – out migration. Positive and Negative growth of population

  • Birth rate > death rate , then called positive growth of population.
  • Birth rate < death rate , then called negative growth of population.

Note that Migration is also effect these.

Componentsofpopulationchange

  • Birth
  • death
  • Migration

Crude birth rate is expressed as a number of live births in a year per thousand of population.

Crude death rate is expressed as a number of death in a year per thousand of population.

Migration may be temporary seasonal or permanent. And

  • Rural to urban
  • Urban to rural
  • Rural to rural
  • Urban to urban

Immigration- Migrants who move in to a new place called immigrants.

Emigration- Migrants who move out of a place are called a emigrants.

REASONOFMIGRATION

PUSH FACTOR-

  • Unemployment
  • Poor living condition
  • Political turmoil
  • Natural disaster
  • Unpleasant climate
  • Socio economic backwardness

PULL FACTOR-

  • Place of destination more attractive
  • Peace and stability
  • Security of life
  • Pleasent climate

TrendsofpopulationGrowth

From data-

  1. The population of developed countries taking more time to double their population as compared to developing countries.
  2. The annual population Growth in india is 1.64%.

IMPACT– a small increase in population is desirable in a growing economy. Of these the depletion of resources is very serious. however , Polpulation decline is also a matter of concern.

Demographic Transition

This theory describe to predict the population of any area.

population of any region changes from high births and high deaths to low births and low deaths as society progresses from rural agrarian and illiterate to urban industrial and literate society. These changes occur in stages which are collectively known as the demographic cycle.

Population Control Measure

family planning services is a significant factor in limiting population growth and improving women’s health.
for the sustainability of our resources the world will have to control the rapid population increase.