Thursday, 17 March 2016


Population


12.1 Population
Population of a country may be defined as a number of people residing in that country.

Population plays an pivotal role in economic development. But when growth of population is more in comparison to the resources available in the economy, then it leads to problems of unemployment and poverty. Rapid growth of population in comparison to rate of growth of resources hampers the process of economic development. So, as higher population is detrimental to the economic development, lower population also hampers the process of economic development because resources of the country cannot be fully utilised for lack of adequate manpower.

Some facts regarding population of India
-         According to 2001 census, 72.2 percent of population lived in rural areas
-         Arunachal Pradesh State has the highest proportion of rural population to its total population.
-        Approximately 28 percent of population that lives in urban area.
-         India’s population is 16% of the world population.
-         Nagaland is the least densely populated state of India.
-         According to the 2001 census the population of India is 102.7 crore.
-         About 60% of population is in the age group of 15-60.
-         Population recorded the maximum growth rate of 2.22% p.a. during the decade 1971-81.

12.1.1 Population growth in India
a.     Control of famines: The famines since independence have been controlled. The problems generated by droughts have been met to such an extent that only stray cases of starvation death are reported. Government measures to control droughts has reduced the starvation death to significant extent.
b.    Control of epidemics: Cholera and small pox were the two major causes of epidemics before independence. Now small pox is completely eradicated and cholera is quite under control. A substantial share of the decline in mortality since World War II is attributed to malaria control, which saved millions of lives. Control of deadly diseases also contributed population growth.
c.    High mortality rate: Improvement in medical facilities, better nutrition, supplies of pure drinking water, improvement in sanitation and hygiene in cities or villages, improving the literacy rates etc. all have increased the mortality rate. So, these are the reasons behind the explosive growth of population.
d.    High Birth Rate: High birth rate is one of the reasons for explosive growth of population. There are several factors responsible for high birth rate. In agriculture based societies children have never been considered an economic burden. Harvesting, weeding sowing all seem to encourage a relatively bigger family. So, agricultural family prefers to maintain big family size.
With spread of education, it is hoped that people will understand the problem of high population and they will try to control the growth rate of population individually by controlling birth rate, maintaining small family. 

12.1.2 Effects of population growth
i.      Low per-Capita Income
Even though National Income increases in money terms, the Per Capita Income increases at a lower rate, due to increase in population. The advantage of high economic growth are set-off and neutralized, by rapid increase in population growth. So, the standard, of living of a country reduces with the growth of population. Every country should try to increase per capital income for its economic development.
ii.     Burden on Food Supply
Inspite of income in total production of food grains, the Per Capita Domestic Availability of Food grains rise only marginally. Excessive population growth creates food shortage problems. Demand for food increases, available food production system cannot meet the food requirement.
Per Capita availability of cultivable area comes down gradually. So, a falling Land-Man ratio has to be compensated by increase in productivity per acre.
iii.    Dependent Population and Unproductive Consumers
With a rapid growth in population, the ratio of children and old Persons of total population tends to rise. This leads to the problem of Unproductive Consumers, bringing additional presure on the resources of each family, and also on Public Utility Services like Food, Education, Health, etc.
Higher dependence of unproductive consumers on food, education and health (called as Dependency Load) generates the vicious circle of Population, Poverty and under-Development.
iv.  Unemployment
One of major adverse effect of population growth is the spread of acute unemployment. Substantial increase in Population creates the problem of unemployment and under-employment.
Inspite of increase in employment opportunities, higher growth rate of population in India still renders about 10% of the Labour Force as unemployed.
v.    Capital Formation
Generally, a part of Capital Formation / Investment goes on maintaining the existing standard of living for the additional population.
Due to rapid increase in population, substantial Capital Investment is required to maintain and improve the standard of living of people. Capital formation is extremely essential for development of an economy. High population consumes all the production of the country in a year, and very little is left for investing in formation of capital goods. So excessive population has a very adverse effect on the economic development due to low capital formation.

vi.   Ecological Degradation
-        Due to rapid increase of population in India, there is a gradual shrinkage of area covered by forests, and open land, thereby causing ecological imbalances. Ecological imbalance effects human health considerably.
-        Denudation of Forests leads to soil erosion and floods, which have adverse harmful effect on food production. Deforestation has a extremely harmful effect on human life span because it increases the quantity of carbon-di-oxide in the air causing health hazards.
-        Removal of forests leads to unfavorable climate changes, prolonged droughts, global warming etc.
-        Increased burden on Agricultural Land leads to depletion of natural soil fertility, increase in alkalinity and salinity of soils.
-        High concentration of population in urban areas, together with insufficient infrastructural facilities (Drinking water, Sanitation, Transportation, Housing etc.) growth major problems of population.

12.2 Population & economic growth

The economic development of a country largely depends on the ability of its population to exploit the available national resources. Explosive growth of population brings about problems like unemployment, poverty, low capital formation etc.

Under population is the situation in which the available size of population is not adequate to make optimum utilization of the available resources. The resources remain idle due to lack of human force.
Achieve growth, population has to be increased in such a manner which would put the available resource to the better use and raise the standard of living. So, both under population and overpopulation are detrimental to the balanced economic development. For rapid progress of an economy, optimum level of population should be maintained so that economy can make optimum utilization of available resources.

Measures to reduce the Population Growth Rate
i.          Improving literacy & primary education: Measures like free and compulsory School Education upto age 14 and reducing drop-out rates at Primary and Secondary School Levels to below 20% would help improve education. Educated people understand the bad impact of population growth and they will try to maintain small family.
ii.        Promoting and encouraging two-child norm: This measure will check the galloping growth of population and encourage maintenance of small size family
iii.       Preventing Child Marriage : Promoting delayed marriage for girls, not earlier than 18 years of age and preferably after 20 years of age. (Marriageable Age is 18 years and 21 years for Girls and Boys respectively).
iv.       Promote registration of Births, Deaths, Marriage and Pregnancy: This measure will help our government to keep a watch on new birth, death so as to know possible population growth rate in near future.
v.         Develop Community groups :Involving like Zila Parishad, Panchayat Samitis, Co-operative Societies and Trade Unions at the grass root levels. All these groups would cause awareness about the benefit of population control.
vi.       Voluntary sterilization : Monetary Incentives for voluntary sterilization. Generally poor people have large family size. Monetary incentives for voluntary sterilization will motivate those poor people to maintain small family.
vii.      Family planning : Offering counseling service on family planning to the general public. All over India, many voluntary organisations have come forward to create public awareness about the necessity of family planning.
viii.     Publicity media : Through different publicity media like newspapers, television & radio channels, government should motivate the general people to keep small family size.

12.3 Population Metrics in  India

a.Density of population
It refers to the average number of persons residing per square km.
Density population = Total population / land area of the region

As the total land area remains same, an increase in population causes density of population to rise.
Years
Density of population
1901
77 per sq km
1961
142 per sq km
1971
178 per sq km
1991
274 per sq km
2001
324 per sq km
Factors affecting Density of Population
i) Climatic condition ii) Transport & Communication facility, namely, roads, railways, water-ways, airways, telecommunications iii) Immigration.
Highly densely populated & developed areas are Mumbai, Kolkata, whereas economic backward areas like, Rajasthan, Tripura have low density.
West Bengal has highest density of population.

b.Birth rate & death rate
Birth rate & Death rate simultaneously are number of birth or number of death per thousand of population.
Years
Birth rate
Death rate
1951
39.9
27.4
1961
41.7
22.4
1971
36.9
14.9
1981
33.9
12.5
1991
29.5
9.8
2001
25.4
8.4


c.Life expectancy
It refers to the mean expectation of life at birth. If death rate is high / low, life expenctancy will be low / high.
Years
Male
Female
Average
1951
32.5
31.7
32.1
1961
41.9
40.6
41.3
1971
46.4
44.7
45.6
1981
54.1
54.7
54.4
1991
59.0
59.7
59.3
2001
62.3
65.3
63.8













d.Sex ratio or Sex composition
It refers to the number of females per 1000 males. It is an important indicator to measure the extent of prevailing equity between males & females. Among the various states of India, Kerala alone shows a higher proportion of females 1,058 per 1000 males in NSS 2001.

The sex ratio is highest in Russia.

Sex ratio for whole world is 986.
Sex Ratio in India
Years
Sex ratio
1951
946
1961
941
1971
930
1981
934
1991
927
2001
933

e. Literacy Ratio
It refers to the number of literates as a percentage of total population

Kerala has highest literacy ratio.
Literacy Ratio in India
Years
Literate persons
Males
Females
1951
16.7
25.0
7.9
1961
24.0
34.4
13.0
1971
29.5
39.4
18.7
1981
43.6
56.4
29.75
1991
52.21
54.1
39.3
2001
65.38
75.85
54.16
Female literacy is highest in the state of Kerala.


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