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Human Geography Population

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Presentation on theme: "Human Geography Population"— Presentation transcript:

1 Human Geography Population

2 Chapter 4 Population: World Patterns, Regional Trends
7 Billion (...and counting) Insert figure CO4 Economist: World Population Source100 people Library of Congress

3 ??? Population Growth Implications of the Numbers Population clock
World Population U.S. Population


5 Human Geography 9eHuman Geography 10e

6 Human Geography 9eHuman Geography 10e

7 Human Geography 9eHuman Geography 10e

8 Human Geography 9eHuman Geography 10e

9 Population Geography Provides the background tools and understanding of population data such as: Numbers of people Age of people Sex distribution of people Patterns of fertility and mortality Density Helps us understand how the people in a given area live, how they may interact with one another, how they use the land, what pressure on resources exists, and what the future may bring Differs from demography, the statistical study of human population, in its concern with spatial analysis – the relationship of numbers to area

10 Some Population Definitions:
Crude Birth Rates The annual number of live births per 1000 population It is “crude” because it relates births to total population without regard to the age or sex composition of the population Insert figure 4.2 © Photodisc/Getty RF Birthrate explained (video) World Birth rates ???? World birth rate map

11 Some Population Definitions
Total Fertility Rate The average number of children that would be born to each woman if, during her childbearing years, she bore children at the current year’s rate for women that age A more refined statement than the crude birth rate for showing the rate and probability of reproduction among fertile females Insert figure 4.6 Fertility rates

12 Some Population Definitions
Crude Death Rate…Why Crude? Also called mortality rate The annual number of deaths per 1000 population In the past, a valid generalization was that death rate varied with national levels of development Characteristically, highest rates were found in the less developed countries Nowadays, countries with a high proportion of elderly people, such as Denmark and Sweden, would be expected to have higher death rates than those with a high proportion of young people World Death Rates

13 Some Population Definitions
Infant Mortality Rate The ratio of deaths of infants aged 1 year or under per 1000 live births. Infant mortality rates are significant because it is at these ages that the greatest declines in mortality have occurred, largely as a result of the increased availability of health services Insert figure 4.8 Human Geography 11e

14 Some Population Definitions
Maternal Mortality Ratio Maternal deaths per 100,000 live births Maternal mortality is the single greatest health disparity between developed and developing countries Insert figure TA 4.2 South Sudan

15 Population Growth Rate of Natural Increase
Derived by subtracting the crude death rate from the crude birth rate Natural means that increases or decreases due to migration are not included

16 Population Growth Doubling Times
The time it takes for a population to double if the present growth rate remains constant

17 Population Pyramids A graphic device that represents a population’s age and sex composition Insert figure 4.9

18 The Demographic Transition
Demographic transition explained Hans Rosling on Demographic transition and population Demographic Transition Video


20 The Demographic Equation
Population Relocation Immigration Impacts Human Geography 11e

21 World Population Distribution
Pattern of Unevenness Ecumene Permanently inhabited areas of the earth’s surface Nonecumene The uninhabited or very sparsely occupied zone, does include the permanent ice caps and large segments of the tundra and coniferous forest of northern Asia and North America Human Geography 11e

22 Population Density Density Measures Overpopulation Urbanization
Arithmetic Physiological Agricultural Overpopulation Carrying Capacity Urbanization Arithmetic Density The calculation of the number of people per unit area of land, usually within the boundaries of a political entity The figure can be misleading since it is a national average density that does not reveal any information about type of territory some sparsely populated areas are largely undevelopable Human Geography 11e

23 Population Density Physiological Density Agricultural Density
The ratio between the total population and the amount of land under cultivation in a give unit of area An expression of population pressure exerted on agricultural land Agricultural Density The ratio between the number of agriculturalists (farmers) per unit of farmable land in a specific area Human Geography 11e

24 Population Data and Projections
Carrying Capacity The number of people an area can support on a sustained basis given the prevailing technology Population Data and Projections Population Data Population Projections Human Geography 11e

25 Population Controls Malthus
A British economist In 1798 he published “An Essay on the Principle of Population and It Affects in the Future Improvement of Society” The world’s population was increasing faster than the food supplies needed to sustain it Population increases at what he called a geometric rate The means of subsistence growth at an arithmetic rate Population growth might be checked by hunger or other tragic events Human Geography 11e

26 Population Prospects Demographic Momentum Aging
When a high proportion of the population is young, the product of past high fertility rates, larger and larger numbers enter the childbearing age each year Aging Human Geography 11e

27 Religions and Babies TED Talk
Supplementals Religions and Babies TED Talk 9 Billion? A Whirlwind Trip Through Population Trends Hans Rosling's 200 Countries, 200 Years, 4 Minutes

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