💚25 Pop Changes over Time Flashcards
(40 cards)
What is population distribution
refers to the pattern of human settlement
Sparsely vs Densely populated meanings
S-Little settlement in an area
D-Lots of settlement in an area
World population is DYNAMIC. Define dynamic
Constantly changing
4 Physical Factors that influence pop distribution
Climate:Mid latitudes of 20-60° has a more suitable climate and has highest pop densities
Altitude:50-60% of all settlement occurs below 300 metres
Soils:Fertile soil supports settlement
Water:Availability of water results in high pop densities
Socio Economic Factor affecting pp distribution
Resources:
-Coal minimg regions of Eurpoe became major industrial centres attracted settlement (Sambre Meuse Valley Belgium)
-Fertile soil areas attract settlement (Paris)
What is urbanisation
Migration from non urban areas to urban areas
Historical Factor that influences pop distribution
Colonialism: Development of major ports (kolkata) facilitated export of materials and import of manufactured goods during colonial period resulted in high pop density
What is population density
Average measure of number of ppl in an area
Population density formula
no. of ppl
—————
land area/km2
2 Areas of low density in ireland:
1.Upland areas (Western Regions)
-difficult landscape, extreme climatic conditions, infertile soils
2.Fertile areas (Golden Vale)
-larger farms=less settlement
3.Offshore islands (Aran Islands)
-isolation, extreme conditions
2 areas of high density in ireland:
1.Urban Centres (Dublin)
- economic activity supports settlement
2.Coastal Lowlands (Kerry to Dnegal)
- fertile soil, relief favoured settlement
3.Urban Centres Near Rivers (Kilkenny)
4.Ports (Waterford)
- economic activity
what is TFR
Total fertility rate
define TFR
Total number of children that each woman could give birth to should she live to the end of her childbearing years
Define fertility rate
Avg no. of births per 1000 women aged 15-44
What is social engineering
Strategies used by governments to try to encourage or limit population growth
What are pro natalist policies
(China 1 Child Policy)
Policies designed to encourage ppl to have children
What is the demographic transition model
Uses historical population data to identify the diff stages countries move through as social and economic changes impact on birth and death rates.
Name the 5 stages of DEMOGRAPHIC TRANSITION MODEL
Stage 1: High Stationary Stage
Stage 2: Early Expanding Stage
Stage 3: Late Expanding Stage
Stage 4: Low Stationary Stage
Stage 5: Senile Stage
What is Birth Rate
no. of births per 1000 of population
What is Death/Mortality Rate
No. of deaths per 1000 of population
What is a natural increase
When annual no. of births exceeds no. of deaths
What is a natural decrease
When annual no. of deaths exceeds no. of births
What is life expectancy
Avg no. of years a person can expect to live
What is a pandemic
Disease outbreak that covers a large area
