The quality of the soil is yet another geographic determinant of population distribution. The steep slope in mountain areas restrict the availability of land for agriculture, development of transport, industries and other economic activities which may tend to discourage concentration of population and its proper growth. This means more people are away of death and more people will stay in the population. First the climate must be something to which people can adapt. In Egypt, nearly 98 per cent of the population is concentrated forming a ribbon along the Nile River. Sometimes this is a smooth process; in other cases, though, the population may overshoot carrying capacity and be brought back down by density-dependent factors. In general, we define density-dependent limiting factors as factors that affect the per capita growth rate of a population differently depending on how dense the population already is.
The model is divided into four stages. Man cannot go beyond the limits set by climate. This represents a high birth rate and high death rate. Western Europe Areas with few resources tend to be sparsely populated e. Water is essential to human survival. Over time, the human population has increased, which results in a positive population growth rate, which is the rate at which the population changes in size. Political unrest in many parts of the world have caused migration from certain areas.
This calculation makes it possible to combine all of the statistics that influence population size and to determine how the overall population is changing over time. It is generally said that the population map of India follows its rainfall map. Instead, they only do so under the right conditions, when populations interact in specific ways. On the other hand, several ancient civilisations flourished on the banks of rivers. Government however, may and often do and indirectly influence decisions individuals in this matter. The main attraction of a place is the push and pull factors for the … person moving there. Population density is calculated by dividing the number of people by area.
Staszewski, in his exhaustive analysis of the vertical distribution of population, has shown that both numbers and densities in different parts of the world decline with increasing altitude. This system keeps population density far below the total potential. 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. An approximate estimate has been made of the proportion of the world's soil that is fit for cultivation in the present times. Climate: Climate is as important as terrain in influencing population. Physical Factors : Physical factors that affect population distribution include altitude and latitude, relief, climate, soils, vegetation, water and location of mineral and energy resources.
Spatial Analysis 2018 11: 465. The fertile alluvial and deltaic soils can support dense populations. . For example the construction of large dams or road constructions. 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. The deltas in India and Indo-China and the Nile Valley provide examples of this type of rich soil. Natural resources are also necessary in order for people to survive.
The Climate of the Area- if the area is grassland or forested then it has a low population density because these area are prone to rainfall. The Population Growth Rate Although there are factors that either increase or decrease the human population, when these factors are combined, they represent the overall population growth rate. Cyclical oscillations are repeating rises and drops in the size of the population over time. There is a great deal of interaction among the three types of facto which makes it difficult for us to identify one type of factor being exclusively responsible for a particular pattern of population distribution. This is the reason that North-West Europe and in India, Bihar and West Bengal have high density of population.
Justify your answer with reference to examples. In association with climatic conditions, varying soil types give rise to variety of vegetation cover on the earth surface. In these regions density of population is high. As of 2011, the human population exceeded seven billion people! An individual deer's chance of dying doesn't depend at all on how many other deer are around. Many people think the greater their number of children the greater their generation becomes.
In fact, populations can fluctuate, or vary, in density in many different patterns. High altitude in general imposes an ultimate physiological limit upon human existence due to reduced atmospheric pressure and low oxygen content. Ganges Valley in India High land that is mountainous e. 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. Sites of water power are also able to attract population, though not to the same extent as minerals, because electricity can be transmittal over long distances, and industries do not have to be set up at the place where electricity is generated. Birth rate is often reported as a percentage of the population. Soil: Soil is an important factor in determining the density of population in an overwhelmingly agricultural country like India.
Density-dependent regulation can also take the form of behavioral or physiological changes in the organisms that make up the population. Some areas have a high population density while others have a low population density. In Canada, for instance, marked difference can be noticed in population concentration between areas of clayey soils and podsol soils. We are also grateful for the excellent suggestions and comments from the editor, two anonymous referees, Dr. Places which are sparsely populated contain few people. Similarly, the chernozems of steppe grasslands and rich volcanic soils can support dense population. Remember to use the names of countries and continents, to quote data to support your statements and to be specific when speaking of locations.