Size of Population
Size of population means number or quantity to have less or more population at a certain place, at a certain time. This note reveals facts on the study of population.
Summary
Size of population means number or quantity to have less or more population at a certain place, at a certain time. This note reveals facts on the study of population.
Things to Remember
- Size of population means number or quantity to have less or more population at a certain place, at a certain time.
- On 11 July 1999, the population was 6 billion. So, every year on 11 July,'Six Billion Day' is celebrated.
- Nepal's population growth rate is 1.35%.
- The causes of population growth in Nepal are early marriage, polygamy,desire of son, ignorance, economic importance of children, lack of population education, etc.
- Reasons of decrement of population during 1911 to 1930 are unscientific census, death due to diseases, death of soldiers in first world war and death by natural calamities.
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Size of Population
Size of population means number or quantity to have less or more population of a certain place, at a certain time. Size of population is always changing.
Benefits of size of population
- It helps to make planning.
- It helps to maintain balance between population and expenses.
- It helps for proportional development.
- It also helps for grand local participation.
Position of world population
- During the time of Jesus Christ the population was 25 million.
- During the period of agrarian society population was only 15 million.
- In the beginning of Roman imperialism, the population was 250 million.
- Population in 1930 was 2 billion.
- Population in 1975 was 4 billion.
- On 11 July 1999, the population was 6 billion. So,every year on 11 July,'Six Billion Day' is celebrated.
Population growth rate
Population growth rate means increase in total number of population by birth and net migration. It is calculated in percentage. Nepal's population growth rate is 1.35%. It means the population is increasingat the rate of 1.35 .
Causes of population growth in Nepal
- Early marriage
- Polygamy
- High infant mortality rate
- Desire of son
- Ignorance
- Economic importance of children
- Desire of large children
- Lack of population education
Population growth rate between 1911-2001
| Year (in AD) | Population | Intercensal changing in population | Population Growth (%) | Average Annual Growth Rate (%) | Doubling Time (Year) |
| 1911 | 56,38,749 | ----------- | ---------- | --------------- | --------- |
| 1920 | 55,73,788 | - 64,961 | (-)0.2 | (-) 0.13 | ---- |
| 1930 | 55,32,574 | -41,214 | (-)0.70 | (-)0.07 | ----- |
| 1941 | 62,83,649 | 7,51,057 | 13.60 | 1.16 | 60.00 |
| 1952-1954 | 82,56,625 | 19,72,976 | 34.90 | 2.33 | 131.00 |
| 1961 | 94,12,996 | 11,56,371 | 11.10 | 1.65 | 42.00 |
| 1971 | 1,15,55,983 | 21,42,987 | 22.80 | 2.07 | 34.00 |
| 1981 | 1,50,22,839 | 34,66,856 | 30.00 | 2.66 | 26.00 |
| 1991 | 1,84,01,097 | 34,68,258 | 22.89 | 2.10 | 33.00 |
| 2001 | 2,31,51,423 | 46,60,326 | 25.20 | 2.24 | 31.25 |
Reason of decrement of population growth in the census of 2011:
In the last census, population growth rate was 2.25 . But it is decreased by 1.2% because of following reasons:
- Foreign employment service: More than 20 lakhs people are in abroad.
- Awareness
- Right age at marriage
- Gender equality
Reasons of decrement of population from 1911 to 1930:
- Unscientific census
- Death by disease
- Death of soldiers in first world war
- Death by natural calamities
Lesson
Demography
Subject
EPH
Grade
Grade 10
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