The extreme case is that of large expanses of deserts, where there is no population at all because of the absence of any source of water supply. Death rates are often used to describe how many individuals die in specific age groups. In 2010, the death rate for infants in the United States was 0. It has been estimated that high mountains, which generally tend to discourage human settlements, occupy more than one million square miles of the earth's land surface. All these factors are usually inter-related. Social and Economic Factors of Population Distribution Geographers are not unanimous in their opinion that the distribution of population is determined mainly by physical factors.
When a person emigrates from a country, its population shrinks. It is obvious that wherever there are extremes of temperature, human life is difficult to sustain, and consequently such areas are sparsely inhabited. African tribesmen, who lived in their own self-sufficient economies, initially had no incentive to work on wages for European enterprises. Now that we know how the human population has changed overtime, it is important to investigate the factors that have influenced these changes. For instance, one of the main reasons for the development of industries in and around Pune is the proximity of that area to Mumbai and the excellent modes of transportation that are available. These economic activities include wholesale and retail trade, manufacturing, finance and business, and even Government and medical services as well as communication.
Geography therefore, usually considers the main climatic belts of the earth as the framework within which human activity takes place. The term most commonly used when describing natality in the human population is 'birth rate'. Factors that Decrease Population Size Now that we have learned about the factors that increase population size, let's investigate the factors that have the opposite influence. The social and economic factors affecting population distribution are: 1 the type of economic activity; 2 the type of technology employed; and 3 social policy. After the invention of agriculture, the human population began to grow slowly until the 1900s, when a rapid increase in the human population began.
For example, as the world population rises, the pressure mounts on the agricultural sector to feed the millions of extra mouths. The concentration of population in urban areas is a result of diverse economic activities which cam be carried out in these areas. Because of the diverse types of economic activities undertaken in urban areas, small land areas can be inhabited by large populations. The categories, however, are in no way like water-tight compartment. The other reason why industries are set up is population centres is the availability of cheap labour; the location if such industries, therefore, attracts more persons in search of employment opportunities, and thus leads to a concentration of the population. This term is often used to describe reproductive rates over a variety of time periods.
Although the human population has been around this size for most of us for our entire lives, the population has not always been so large. Among the many kinds of minerals, coal was the first to be used as a source of both heat and motive power, and soon became a symbol of man's control over nature. Government however, may and often do and indirectly influence decisions individuals in this matter. Emigration is caused by a number of factors, such as fleeing war, finding education, seeking new jobs or joining family members. When a great variety of economic activity is concentrated in a single area, the result is high population density.
Demographic Factors of Population Distribution Though the three demography variables fertility, mortality and migration are themselves determined by social, economic and geographic factors, it is possible to consider them in the light of their influence on population distribution. The Human Population Take a minute and think about all of the different people you interact with in a given day. On the other hand, several ancient civilisations flourished on the banks of rivers. When an individual emigrates from a location, they decrease the population within that area. The only way that immigration could influence the overall human population on Earth is if humans lived on a different planet and immigrated to Earth. The most appropriate example of temperature affecting population distribution is the one provided by the Arctic and Subtract Regions where, because of long and very cold winter nights and low intensity of solar radiation even during the summer, living conditions are extremely difficult and the energy of human beings is spent mainly on struggling against the difficult conditions created by nature. In terms of the human population, mortality is often described as the death rate, which is the number of individuals that die per 1,000 individuals per year.
Many industries have to be set up in proximity with the consumers of their products; conversely, wherever population concentration is great, such industries are set up. A population is often described as a group of individuals of the same species that inhabit the same area. Wherever the terrain is difficult, the area is sparsely populated. Mortality is the number of individual deaths in a population over a period of time. Some factors result in an increase in the population, while others can cause a decrease in population size. For example, in 2010, the birth rate in Ethiopia was 4. As water is essential for human survival, population distribution is largely determined by rainfall and other sources of water supply like rivers, wells, etc.
First, there is natality, which is the number of individuals that are added to a population over a period of time due to reproduction. The existing population distribution sometimes acts as a demographic factor which attracts the setting up of certain industries, which in turn results in further development of the area and encourages concentration of population. Factors that Increase Population Size There are two factors that result in an increase in the size of a population. The main reason for this is the fact that, as man gains increasing control over natural phenomena, he is less inclined to accept the natural conditions in which he finds himself, but tends to modify these to suit his own requirements, if other conditions of habitation social and economic conditions are attractive. When you combine the rates of births, deaths, immigration, and emigration, you can determine whether a population is growing, shrinking, or remaining the same.
Migration, on the other hand, is the most important demographic variable influencing population distribution. Fertility Rate The factor which affects the growth of the population in the biggest way is the fertility rate. There are two kinds of soil, the superficial matter which covers the solid rock below. Therefore, all of the people you encounter each day are part of your population. The argument goes that this type of restriction would cause fewer resources to be used and prevent overpopulation. If the fertility rate is larger than 2, the rule of thumb is that the population should rise, as there are more children than their parents.