Ch.3 Flashcards
Population Distribution
where people live within a geographic area
Climate
the long-term patterns of weather in an area that greatly affect population distribution in direct and indirect ways.
Temperate Climates
Areas with moderate temperatures and adequate precipitation amounts.
Dispersed
Spread out (referring to a population).
Landforms
The natural features of Earth’s surface (influence population distribution).
Human Migration
When people make a permanent move from one place to another.
Population Density
The number of people occupying a unit of land, and is an important aspect of population.
Arithmetic Density
The total number of people per unit area of land.
Physiological Density
The total number of people per unit of arable land.
Arable Land
Land that can be used to grow crops.
Agricultural Density
The total number of farmers per unit of arable land (highest found in Asia).
Subsistence Agriculture
The practice of providing crops and livestock for only the farmer’s families and close community, often when the agricultural density is higher (common in peripheral and semi-peripheral countries with fewer mechanical resources).
Carrying Capacity
The maximum population size an environment can sustain (a concept that originated in biology).
Dependency Ratio
The number of people in a dependent age group (under age 15 or age 65 and older).
Sex Ratio
The proportion of males to females in a population (In general, slightly more males are born than females).