Factors that Affects Population Distribution
Understand the basics of global population distribution. in the contexts of carrying capacity, as well as the relationship between people and resources. around the planet, but rather in clusters because of earth's physical geography. Students examine the physical and human geographic factors associated with Map and analyze the distribution of the world's human population for different the impact of these trends on the future of the community in relation to issues. Population geography is a division of human geography. It is the study of the ways in which spatial variations in the distribution, composition, migration, and.
See Wikipedia's guide to writing better articles for suggestions. August Suburbanization[ edit ] Suburbanization in the developed part of North America has roots in the migration decisions of many families who leave central cities and relocate on the urban fringe.
This type of metropolitan decentralization matters because it contributes to the pressures on rural and "green-field" land, the under-funding of inner-city schools, the continuing segregation of groups in society, and the difficulties some suburban housewives encounter in finding jobs.
Medical discoveries about the spread of the disease and childhood vaccinations helped to decrease TB infections and case mortality rates declined steadily during the century. However, by the early s, figures by place of birth suggested that foreign-born persons were eight times more likely to die from TB than native-born Americans.
Increasing TB levels in parts of the former Soviet Union territories and Haiti suggest that unemployment, poor access to underfunded healthcare systems, and stress all elevate risk.
- Factors that Affects Population Distribution
- Population geography
This is particularly true in the temperate and other high latitude areas where insolation is very important. In Egypt, nearly 98 per cent of the population is concentrated forming a ribbon along the Nile River.
As against this, in tropical swamps and dissected plateaus, river valleys tend to repel population. Of all the geographic influences on population distribution, climatic conditions are perhaps the most important. Climate affects population distribution both directly as well as indirectly through its effects on soil, vegetation and agriculture that have direct bearings on the pattern of population distribution.
Moreover, other physical factors like latitude and altitude also operate on population distribution through climatic conditions. Although climatic optima are difficult to define, extremes of temperature, rainfall and humidity certainly limit the concentration of population in any part of the earth.
In the Northern Hemisphere, extreme cold conditions in the high latitude areas have prevented human habitation. Likewise, extremely high temperature and aridity in the hot deserts of the world restrict human habitability.
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Some of the geographers in past have, therefore, gone to the extent of claiming a deterministic relationship between climate and population distribution. It should, however, be noted that man has ability to adapt himself to different climatic conditions. This explains a high density in the tropics, which are otherwise marked with extremes of climatic conditions.
Though limited in magnitude, the peopling of the Alaska and Siberia during the last century owes to the scientific and technological advancements. The cases of Java and the Amazon basin also serve to refute deterministic stance of relationship between climate and population distribution.
Though, both of them experience equatorial type of climate, they differ markedly from one another in terms of population density.
BBC Bitesize - National 5 Geography - Population, distribution, growth and change - Revision 4
While Java is one of the most densely parts of the world, the Amazon basin is marked with a very sparse population. Similarly, the quality of soils exerts an undeniable influence on the distribution of world population. The fertile alluvial and deltaic soils can support dense populations. Thus, most of the major concentrations of populations in the world are located in the river valleys and deltas.
Great civilizations of the world have almost invariably flourished on good fertile alluvial soils. Similarly, the chernozems of steppe grasslands and rich volcanic soils can support dense population. On the other hand, the leached soils of temperate lands, the podsols, which are very poor in terms of fertility, can support only a sparse population. Moreover, progress in technology can alter the effectiveness of soil types on population concentration to a greater extent.
Application of modern technologies during the recent times has greatly enhanced the profitability of cultivation in many areas of the world, which were hitherto not suitable for cultivation.
Population, distribution, growth and change
Such areas have, thus, attracted population during the recent past. In association with climatic conditions, varying soil types give rise to variety of vegetation cover on the earth surface. These, in turn, provide contrasting environment for a variety of agricultural activities, and hence, lead to different population density.
Tropical forests, savanna, tundra and taiga provide different media for human occupation and concentration. Singapore Unstable countries tend to have lower population densities as people migrate e. Social Groups of people want to live close to each other for security e.CBSE 9 Geography -- Population - 1 -- Population Size and Distribution
USA Other groups of people prefer to be isolated e. Limited job opportunities cause some areas to be sparsely populated e.
Geography and History of the World
Amazon Rainforest The world's population is growing very rapidly. In the world's population reached 1 billion. In it reached 6 billion people.
This rapid growth in population has been called a population explosion. The major reason for population changes, whether in an individual country or for the whole world, is the change in birth and death rates. The birth rate is the number of live babies born in a year for every people in the total population.