Changing populations

The ways in which a country seeks to progress economically and also to improve the quality of life for the inhibitors
Places, areas or territories can be studied and identified at a variety of geographic scales, from local territories to the national or state level.
Flows of people, investments and resources directed from peripheral to core regions
Core-periphery system
The uneven spatial distribution of national population and wealth of a state or country, resulting from flows of migrants, trade and investment
Internal migration
The movement of people from place to place inside the borders of the country.
An increase in the proportion of people living in urban areas
Intervening obstacles
Barriers to a migrant as a political border or physical feature (deserts, mountains, rivers)
The study of population dynamics and changes
Population structure
The make-up of a population in terms of age, gender, occupation, ethnicity or any other selected criterion
Population pyramid
A type of chart used to show the proportion of males and females belonging to different age groups for a place or country
Dependency ratio
(%under 15) + (% over 65)
(% aged 1-65) x 100 =
Green revolution
A period when the productivity of global agriculture increased greatly as a result of new technologies including fertilizers and selectively bred high-yield crops
Replacement level
The fertility rate required to maintain a population at its current size
A very large city, typically one with a population of over ten million people.
Special Economic Zone
A part of a city or country where business tax and trading laws are more liberal than those found in the rest of the state, for the purposes of stimulating investment and industrial activity
A person who has been forced to leave his or her country in order to escape war, persecution or natural disaster
Causes of forced Migration
1. Conflict
2. Land grabbing
3. Climate change
Crude birth rate (CBR)
The number of live births per 1,000 people per year in a region
Crude death rate (CDR)
The number of deaths per 1,000 people per year in a region
Natural increase
The difference between CBR and CDR. It can be recorded either as the net change per 1,000 people or as a precentage
Life expectancy
The average number of years a member of a particular society can expect to live
Fertility rate
The average number of children a woman gives birth to during her lifetime
Infant mortality rate
The number of deaths of infants under one year old per 1,000 live births per year