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Where are the World's People Distributed? (Population and Health…
Where are the World's People Distributed?
Population Concentrations
Clusters
Asia
South
Nearly 1/4 of the world's population live here
They are heavily concentrated near Indus and Ganges rivers and also close to India's two coastlines
Southeast
Around 600 million people live here and most of them live on islands between Indian and Pacific oceans
East
Almost 1/4 of people live in the world live here
They are clustered near the pacific coast line and nearly half live in rural areas and work as farmers
Europe
3/4 of population live in cities
Largest concentration are near major rivers and coalfields in Germany and Belgium, and near historic capitals like Paris and London
Africa
East Coast
Has around 300 million people here
West Coast
Has around 300 million people here most work in agriculture
USA and Canada East Coast
Around 100 million people here, from Atlantic coast to great lakes
Sparsely Populated Area
Dry Lands
20 percent of world is to dry for farming, but has many important resources such as most of the world's petroleum
Wet Lands
These receive very high levels of precipitation near the equator are not useful for humans, the combination of rain and heat rapidly kills the nutrients in the soil
Cold Lands
Land near north and south poles is virtually frozen and not habitable for humans. Few animals and plants can survive here
High Lands
Highest mountains are snow covered and steep, although high elevations with low latitudes are more densely populated
Population and Health
Population
More people are alive than any other time in history
Almost all population growth is happening in developing countries
The earth's capacity for life is high but some places have favorable amounts of people and other's have really high amounts and these are usually located in developing countries
These developing countries in turn don't have the resources to care for these people whereas the developed countries with less people have the resources to have a high standard of living for their people
The rate of growth in the second half of the 20th century is higher than ever before
Definitions
Census is the official count or survey of people in an area
Problems with the Census
People that are homeless, of ethnic minorities and foreigners aren't as likely to complete these forms due to the fear that they will be deported or reported to homeland security
People from rural areas have been against this and it has an affect on the amount of people who partake in it
Overpopulation happens when the number of people in an area exceeds the capacity the area has of supporting them at a reasonable standard of living
Distribution of the World's People
Density
Several density measure help geographers see the relationship between the amount of people and the amount of resources available
Concentration
Concentration of earth's population can be shown by separating earth into seven sections each with one billion people
Another way to show concentration is by using a cartogram which displays the size of countries based on population
Population Density
Arithmetic Density
The total number of objects in an area
Refers to total amount of people divided by the total land area
Enables geographers to compare the amount of people try to live in different regions of the world
Physiological Density
The number of people supported by a unit area of land suited for humans
Comparing physiological and arithmetic density helps geographers understand the capacity the land has for food and the needs of the people
Agricultural Density
The ratio of the number of farmers to the amount of arable land, this helps account for economic differences
To understand relationships between population and resources in a country geographers examine a countries agricultural density and physiological densities together