Popuation affectind factors

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Gondia Education Society's C.J. Patel College, Tirora , Dist.- Gondia 441911. Subject : Population & Settlement Geography Topic Factors influencing the Distribution of Population Physical , Political Is presented by Dr. Nanabhau S. Kudnar M.A., B.Ed., SET, NET, Ph.D., M.B.A . Head, Department of Geography C.J . Patel College Tirora .

Physical factors :- Along with historical factors physical factors also influence distribution of population. Important among these are physiographic, geology, climate, geographical location, water resources, soil, forest, minerals, etc. A careful study of distribution of population over the globe shows that 80percent of the population is concentrated in a belt extending from 20 N to 60 N latitudes. Only about 10 percent population is found in the southern hemisphere. One third of the world’s population found within 5000km from the cost. population is concentrated in the costal region in the peninsular. :

Physical factors :- Along with historical factors physical factors also influence distribution of population. Important among these are physiographic, geology, climate, geographical location, water resources, soil, forest, minerals, etc. A careful study of distribution of population over the globe shows that 80percent of the population is concentrated in a belt extending from 20 N to 60 N latitudes. Only about 10 percent population is found in the southern hemisphere. One third of the world’s population found within 5000km from the cost. population is concentrated in the costal region in the peninsular.

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75% of the worlds population lives in the continents of Europe & Asia one thirds of the worlds populations is found within 500km from the coast. Population is concentrated in the coastal region in the peninsulas. As the height from the mean sea level increases, the density of population decreases. 80 per sent of the world's population ,therefore ,is found in regions with an altitude of less than 400 meters. Following geographical factors influence distribution of population.

Topographical Features:- On the basis of height, topographical features can be grouped into three broad categories . Broadly, a region with considerable height from the mean sea level having steep slope is called mountainous region. A region with moderate height with as even surface on the top is called a plateau. An even surface almost at the sea level is called a plain . Mountains :- As regards distribution of population is concerned , mountains play both factorable as well as unfavorable roles. Density of population becomes very low in mountainous regions with altitude of more than 500 meters. Slopes of mountains in such regions are very steep . In mountainous regions , length if the growing season is very short . :

Topographical Features:- On the basis of height, topographical features can be grouped into three broad categories . Broadly, a region with considerable height from the mean sea level having steep slope is called mountainous region. A region with moderate height with as even surface on the top is called a plateau. An even surface almost at the sea level is called a plain . Mountains :- As regards distribution of population is concerned , mountains play both factorable as well as unfavorable roles. Density of population becomes very low in mountainous regions with altitude of more than 500 meters. Slopes of mountains in such regions are very steep . In mountainous regions , length if the growing season is very short .

Plateaus: Plains at higher altitudes are called plateaus. Normally Plateaus are suitable for human settlement. However, in which climate zone the plateaus lie decides the density of population. The Deccan plateau and the African Plateau have fertile soils . In India large part of Deccan Plateau is covered with black cotton soil. Chhota Nagrpur plateau in India is as a good example of this phenomenon. Plains : Most of the plains are river plains or delatas Important river plains in the worked are those formed by Ganga ,Indus, Irrawaddy, Ho-Hang –Ho, Mississippi, Nile, Yangatse , etc.In India dense railway and road networks are found in Gganga plain. Hence large population are concentrated in the plains of the world.:

Plateaus: Plains at higher altitudes are called plateaus. Normally Plateaus are suitable for human settlement. However, in which climate zone the plateaus lie decides the density of population. The Deccan plateau and the African Plateau have fertile soils . In India large part of Deccan Plateau is covered with black cotton soil. Chhota Nagrpur plateau in India is as a good example of this phenomenon. Plains : Most of the plains are river plains or delatas Important river plains in the worked are those formed by Ganga ,Indus, Irrawaddy, Ho-Hang –Ho, Mississippi, Nile, Yangatse , etc.In India dense railway and road networks are found in Gganga plain. Hence large population are concentrated in the plains of the world.

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Climate : A Verage of weather conditions at a place over a long period is called the climate of the place. Various elements of climate such as temperature, rainfall, humidity, wind influence life. Among them temperature & rainfall exert more influence on distribution of population .

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Temperature: Temperature influences not only human being but also vegetation, animals & land. Normally Temperature between 50 degree F & 55 degree F is considered ideal from the point of view of human comforts. Temperature higher & lower than this influence human beings adversely. When we study impact of temperature, we have to take in to consideration both the duration of sunshine & intensity of sunshine. Both increase as one move from poles to the equator. As a result of this Temperature also goes on increasing from the poles to the equator.

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Rainfall : Amount of rain fall influences human life to a considerable extent. From the point if view of human habitation, regions with very heavy rainfall & very scanty rainfall are less attractive. From the point of view of human life it is not only the amount of rainfall that matters but its distribution over the year is quite significant.

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Political Factors : Political Factors also influence distribution of population. For example in erstwhile U.S.S. because of its peculiar political set-up it became possible to send people to Siberia. As a result of this distribution of population in U.S.S.R. underwent to change The international bound ary of Poland change several times. This resulted in migration of polish & German people on a large scale. After the second world war because of the partition of Germany in to East & West Germany, & large number of Germans migrated across the border.

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