Population Distribution And Density Flashcards
What is population distribution
The way in which people are spread out across a given area
What is population density
The average number of people per square kilometer
What does population density show in an area
Whether an area is sparsely or densely populated
What does sparsely populated mean
A few people living in a small area/per square kilometre
What does densely populated mean
Many people living in a small area/per square kilometre
What is the formula of population density?
PD= total population
______________________
total land area in km²
Units : people/km²
Population density is determined more by…
Environmental factors
The environmental factors make an area less or more..
Attractive
Why is there an uneven distribution of people around the world?
PD is determined more by environmental factors which make an area more or less attractive to settlers than by economic development
What are the 2 types of factors affecting population Density
Human Factors
Physical factors
Why is flat land a physical factor?
Flat land is densely populated which attracts a lot of people to live there as it is easy to build on.
Why is amount of rainfall a factor(negative answer)
Areas with low amounts of rainfall are deserts amd a sparsely populated , attracting a few prople because people can not grow crops in dry areas to sell for income or for food
Why are rivers and fertile soils physically factors?
Fertile soils attract people and are able to grow crops to sell or for food. Rivers attract people as a source of water
List the physical factors of PD?
Flat land
Low/high Amounts of rainfall
High/low temperatures
Vegetation
Rivers
Fertile soils
List the human factors of PD?
Agriculture
Secondary industry
Accessibility
Political decisions
Conflict
Why is Agriculture a human factor of PD?
Areas with well developed farming of crops or animals are often densely populated.
What is secondary industry a human factor of PD?
Areas in which manufacturing has developed tend to be densely populated. Even in old industrial areas where manufacturing has closed population densities still remain high
Why is accessibility a Human factor of PD?
Areas with well developed transport, infrastructure, and links through road rail and shipping are more likely to be more densely populated than areas which are poorly connected
Why is conflict a human factor of PD?
Wars and conflicts can lead to significant movements of population and a simultaneous decrease in density in some areas while others may increase
List4 difficulties in urban areas with very high PD
1.air pollution
2.need to provide electricity
3.need to provide good sanitation
4.need to supply clean water
5.need for more public transport
5.water pollution
6.theft/robbery
7.noise pollution
Why many areas with good transport networks are densely populated
1.access to shops
2.access to hospitals
3.they can travel to work
4.people are not isolated.
5.industries need transport for raw materials
6.immigratiin route
How Is the population of botswana distributed?
Unevenly
Which side in botswana is more densely populated
The eastern margin
Which side in botswana is sparsely populated
The south western and north
What major thing does the eastern margin have
The capital city Gaborone
Some factors attracting people to the east are:
Good medical facilities such as the government referral hospital in Mochudi can attract people to the eastern margin.
2.Some factors attracting people to the east are:
There is better education and higher institutions of learning such as the Uni of Bots allowing people to further improve their education and get better jobs.
3.Some factors attracting people to the east are:
Adequate rainfall of around 500-600 mm allows people to form and sell their produce for more income.
Gaborone has a population of about
246 000 people
- Some factors attracting people to the east are:
Gaborone being the capital city is the engine of economic growth therefore all governments headquarters are located there
Examples of P.S in the PD case study of botswana
Marina hospital
246 009 people
Deborah hospital in Mochudi
500-600 mm of rainfall
Some factors attracting less people to the west are:
Sandy soils in the region make it impossible to practice arable farming and very little rainfall causes cause a decline in crop production and so therefore people can’t sell their produce for income
Sparsely populated sahel region case study
a).It is the region of western and North Central Africa.
- Reasons for sparse popula
B] the climate of the sahel is really hot and arid thus unsuitable for agriculture and causes ppl to emigrate. Eg Senegal is a country with a emigration of 99.996% migrants in 2012
Second reason for sparse population in sahel
Natural disaster make it difficult for human settlements to form and reduces the immigrants in the country. In November 2014 cape Verde fogo volcano erupted leaving villages destroyed explain why the county has a migration of -0.64 per 1000 ppl
Third reason for sparse sahel
The countries comprising the Sahel regions are Ledcs and do not have very good schooling opportunities or medical facilities, causing less ppl to live there
