The population of the planet is constantly increasing, and this growth can have many effects on the environment and the economy of the world. Japan and a few of the Middle East countries are the exceptions. . These all are discussed above. When a person emigrates from a country, its population shrinks. Great civilizations of the world have almost invariably flourished on good fertile alluvial soils.
There are few religious beliefs which prevent the people to undergo family planning. Areas in which populations are small usually lack one of these four qualities. It occurs in the United Arab Emirates and Saudi Arabia. Relief and landforms Lowland plains, flat river valleys and deltas and volcanic areas with fertile soil tend to have high population densities. Limited job opportunities cause some areas to be sparsely populated e. For instance, the plains of North America and Europe are densely populated areas, so is the Ganges Valley in India.
Moderate climate leads to the growth of population because it is pleasant and refreshing. Access to resources is also vital to the density of a population as people will locate in areas where they have access to the appropriate resources. The river valleys may promote or restrict human settlements depending upon other geographic conditions. Each stage in economic development was marked with profound changes in population density and distribution in the region. Duration of human settlements is an important determinant of the magnitude of population concentration in any area. Western Europe Areas with few resources tend to be sparsely populated e. The argument goes that this type of restriction would cause fewer resources to be used and prevent overpopulation.
Social Areas will have a high population density if they are located close to good communications links. Even before the Manchu was established in 1644, soldiers had launched raids into and captured Han labourers, who were then obliged to settle in Manchuria. The Islamic countries of Southwest Asia generally show higher rates of fertility with birth rates ranging from 35 to 45 per thousand, than the predominantly non-Muslim nations of South Asia, such as India, and Sri Lanka. As a residents of a French colony, Moroccan males were allowed to come to France to work and join the armed forces. Rugged and undulating topography restricts the condensation of human population in any area. Based on this, some scholars have talked about cycle of occupation, whereby size and densities of population first increase and then decline only to be followed by another cycle of increase.
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. As technological advances enable mankind to overcome limitations … of climate, people move in greater numbers into what would otherwise be marginal climatic areas. There are two kinds of soil, the superficial matter which covers the solid rock below. No longer was the movement primarily one of agricultural resettlement, and instead it became essentially a rural-to-urban movement of interregional magnitude. As water is essential for human survival, population distribution is largely determined by rainfall and other sources of water supply like rivers, wells, etc. The mining areas, therefore, lacked a sufficient labour force, and most of the workers had to come from other areas, either of the same country or from adjoining countries, and sometimes even from distant countries.
Location of coal, the most important fuel in the nineteenth and early twentieth centuries was the main factor behind industrial conurbation and dense population concentration in Western Europe. The main concentrations of human population are confined to the areas marked with flat topography. Twenty-one Asian countries have small populations, less than 10 million inhabitants. They must also be able to maintain crops or grow livestock. Well, as it is for butterflies, they are highly attracted to certain kinds of bushes. In 1990 it reached 6 billion people.
Likewise, in China, planned colonization of the interior, encouraged by the communist government, has resulted in significant change in population patterns. These factors provide the necessary explanation for particular patterns of population distribution are generally grouped into three categories: 1 Geographical factor 2 Economic and social factors; and 3 Demographic factors. As against this, in the high latitude areas, it becomes extremely difficult to live beyond a few hundred metres from sea level. The influence of altitude has already been noted. There are, however, marked variations in the Muslim nations of Southeast Asia as well, for example, Indonesia or Malaysia, which have non-Muslim minorities, birth rates tend to be lower.
A useful way of depicting graphically the age-structure is by constructing population pyramids Figure 3. The factors affecting population are numerous however there are a few general but important ones. The child labor plays a crucial role in the growth of population. Rural areas often have very little investment and therefore become run down and have low population densities. Therefore, very few permanent settlements can be seen in the lofty mountains of the world at a height above 5,000 metres.
The and the pricing system are still areas of concern. The birth rate is the number of live babies born in a year for every 1000 people in the total population. Himalayas Resources Areas rich in resources e. In association with climatic conditions, varying soil types give rise to variety of vegetation cover on the earth surface. It is difficult to develop communication line in such areas. These families consider the children as their earning hands.