Diverse places Flashcards
Population density
The number of people per unit measure (usually km²). The total population of a given area divided by its area
Birth rate
total number of live human births per 1,000 population in a year
Mortality rate
total number of deaths per 1,000 population
Fertility rate
How many babies are born per fertile woman (15-44) divided by two (replacement rate)
Inequality
An unfair situation or distribution of assets and resources. The idea that people have different levels of authority, competence and outcomes
Infrastructure
The basic physical systems of a place
Social infrastructure = public housing, hospitals, schools etc
Economic infrastructure = highways, energy distribution, water etc
Demographic transition model
A model representing changing rates of fertility and mortality over time, their changing balances and their net effects on population growth. Suggests that there is a correlation between the development of a country and its birth and death rates, and any changes to these are gradual
Stage 1 of the demographic transition model
Stage 1:
- high birth and death rates
- total population tends to be low and there isn’t much change in population size
- country tends to be poorly developed and have little wealth to spend on services such as health education
- most employment is primary industries which is intensive labour and low income
- birth rates are high due to lack of contraception, religious beliefs, lack of education and high infant mortality
- death rates are high because of lack of safe drinking water and sanitation, malnutrition and lack of access to healthcare
Stage 2 of the demographic transition model
Stage 2:
- death rates begin to fall while birth rates stay high
- population size starts to increase rapidly
- because the country often becomes more developed, meaning it has more money spent on healthcare, which has a huge impact on reducing the death rate
- epidemics and disease are better understood, households develop basic understanding of sanitation and transmission of diseases
- improvements in farming and mining practices (more machinery) reducing injuries and fatalities
- secondary industry develops, offering higher paid and more secure jobs
- income is more consistent and standard of living improves
Stage 3 of the demographic transition model
stage 3:
- death rate continues to decrease while birth rates decrease
- population expands
- women often have more rights, increased access to family planning and contraception
- focus on career means women have fewer children and children later on
- a move away from the primary industry means families need fewer kids to help work on the land
Stage 4 of the demographic transition model
Stage 4:
- birth and death rates are much lower and plateau
- population continues to grow slowly as migrants from other countries are attracted to employment opportunities and better quality of life
- migrants can fill skills gaps and keep services and industries growing
What are the drawbacks of the demographic transition model
- it suggests that population change is gradual which doesn’t take into account sudden population growth due to migration or disasters resulting in rapid population loss
- it doesn’t consider countries whose development worsens through conflict of natural disaster
e.g. Syria or Haiti
Population distribution in the UK
- the population of the UK is unevenly distributed due to the condition of the land
- 84% of the UK’s population is in England, as it has low-lying hospitable land
- the population density is highest in the South East (London)
- lowest population in rural areas
- rapid population growth in areas of economic development (major cities, especially London and the South-East)
- The populations of the Scottish coast and Cumbria are declining from lack of employment opportunities and counter-urbanisation from deindustrialised cities such as Bradford
Reasons for UK population changes
Birth rate decline:
- free access to and education on contraception
- UK becoming less religious, meaning more people use contraception, have less pressure to get married and have children
- increased financial cost of raising a child
- advancement of women
Death rate decrease:
- advancements in medicine and improved access to healthcare
- immunisation/eradication of diseases
- clean water and sanitation (100% have access to clean water)
Large increase in international migration to the UK:
- political alliances
- lower price of long distance travel
- war and conflict
- increased employment opportunities
Why might lifestyle choices limit the life expectancy of Western countries
- smoking and alcohol consumption, which can lead to lung and liver cancer
- unbalanced diet, which can lead to obesity and t2 diabetes
- sedentary lifestyle, office jobs
What is the ‘North-South drift and what factors contribute to it?
The redistribution of the population from population growth being concentrated in the South of England due to:
- rising economic prosperity of London and the South East, becoming a global centre for finance and business and a hub of modern service industries
- the decline of manufacturing industries in the Midlands and the North of England and the collapse of traditional heavy industries in the North east such as coalmining and steel production due to foreign competition
This results in a spatial pattern of growth and decline
Agglomeration
a continuous urban spread constituting a town and it’s adjoining outgrowths, or two or more physically contiguous towns
An idealised profile of urban population density
- overall, there is a gradient of declining population densities with increasing distance from the town of city centre
- There is low population density in the central business district (CBD) as the residential population has been replaced by commercial and public buildings
- the population density peaks in the inner-urban fringe, where there is densely packed terraced housing or it has been replaced by high-rise blocks of flats
- then there is a depression in density reflecting the low density suburban housing buildings built in the interwar period (1918-1939)
- density then increases, ending in a ‘cliff’ where density decrease abruptly at the urban fringe
- houses built after WWII had higher densities due to changes in planning controls
- large estates of housing on the urban fringe
- the creation of green belts to stop urban growth into the countryside rapidly decreases density
- population densities continue to decline as the settlements become more rural, apart from commuter settlements and market towns
What factors affect the population density of areas within a city
- physical environment, flat areas are more likely have residential development
- socio-economic status, often expensive large housing is in the west (windward side) of a city to avoid atmospheric pollution, so poorer, more dense housing tends to be located where there is pollution in the eastward side
- dwelling type and household size
- functions, the distribution of non-residential activities
- planning, planners control the density of all new residential developments and the creation of green belts
Life expectancy
The average number of years from birth that a person born in a particular year can expect to live. In developed countries, women have a greater life expectancy than men
Central business district (CBD)
The centre of a city, containing a high density of businesses and TNC headquarters
Population pyramid
A representation of a country’s population broken down by gender and age
International migration
Migration across national borders
Internal migration
Migration from one part of the country to another
What are the two main types of internal migration
Rural-urban migration
Counterurbanisation (urban-rural)
Family size
Number of children and parents/guardians living together in one household. Conditioned by cultural and socio-economic factors
- shrinking in the UK partly due to the changing status of women
Urban population structure
- high population densities over large areas
- younger population (20-40 years) leads to high fertility rates and high population growth
- more ethnically diverse population
- mortality rates conditioned by two opposing forces, better access to healthcare and the stress and pace of urban living