30 terms

Human Geography De Blij Chap. 2


Terms in this set (...)

Population Density
number of individuals per unit area
Arithmetic Population Density
the population of a country or region expressed as an average per unit area. The figure is derived by dividing the population of the areal unit by the number of square kilometers or miles that make up the unit
Physiological Population Density
the number of people per unit of area of arable land
Dot Map
maps where one dot represents a certain number of a phenomenon such as population
a very large urban complex (usually involving several cities and towns)
a periodic and official count of a country's population
Total Fertility Rate (TFR)
the average number of children a woman will have throughout her childbearing years
Aging Index
Number of people age 65 and older per 100 children ages 0-14.
Doubling Time
the number of years needed to double a population, assuming a constant rate of natural increase.
Population Explosion
the rapid growth of the world's human population during the past century, attended by ever-shorter doubling times and accelerating rates of increase
Zero Population Growth
when the birth rate equals the death rate
Natural Increase
the growth rate of a population; the difference between birthrate and death rate
Crude Birth Rate
the number of live births yearly per thousand people in a population
Crude Death Rate
The number of deaths per year per 1,000 people.
Demographic Transition
The process of change in a society's population from a condition of high crude birth and death rates and low rate of natural increase to a condition of low crude birth and death rates, low rate of natural increase, and a higher total population.
Stationary Population Level (SPL)
The level at which a national population ceases to grow
Population Composition
structure of a population in terms of age, sex and other properties such as marital status and education
Population Pyramids
Visual representations of the age and sex composition of a population whereby the percentage of each age group is represented by a horizontal bar the length of which represents its relationship to the total population. The males in each age group are represented to the left of the center line of each horizontal bar. The females in each age group are represented to the right of the center line.
Infant Mortality Rate
the number of deaths in the first year of life for every 1,000 live births
Child Mortality Rate
A figure that describes the number of children that die between the first and fifth years of their lives in a given population
Life Expectancy
The average number of years an individual can be expected to live, given current social, economic, and medical conditions. Life expectancy at birth is the average number of years a newborn infant can expect to live.
Infectious Diseases
Diseases that are caused by infecting organisms; they can be passed from person to person
Chronic or Degenerative Diseases
Generally long-lasting afflictions now more common because of higher life expectancies.
Genetic or Inherited Diseases
Diseases caused by variation or mutation of a gene or group of genes in a human.
a disease that is constantly present to a greater or lesser degree in people of a certain class or in people living in a particular location
a serious (often fatal) disease of the immune system transmitted through blood products especially by sexual contact or contaminated needles
Expansive Population Policies
government policies that encourage large families and raise the rate of population growth
Eugenic Population Policies
government policies designed to favor one racial sector over others
Restrictive Population Policies
government policies designed to reduce the rate of natural increase
One-Child Policy
Act in China that allows people to have only 1 child in the city and 2 children in the countryside.