geo population studies
Demography
statistics of tge human population
population geography
srudy about size, distribution, density and migration
what is population distribution
where the population is spread out over the world
what is population density
how many people are livin in one area of land in the world
how to calculate population density
total people of area/ size of area =people/km2
non-ecumene
on suitable areas for people to live in
factirs affecting distribution and density social
economy, politics, cultural, transport, infrastructure
factors influencing distribution and density physical
climate, water, soil, relief, natural enviroment and resources
population indicators definition
number of pieces of information which can tell about population (measurement of value)
population indicators are
DR, BR ,LE, NI, IMR, NI, FR, LR, DT, GDP per capita, urbanised population
how to calculate BR/ DR
total B/D / total population * 1000
population pyramids
show age and gender structure
expanding population
high DR, low LE, high BR
gradually expanding population
longer LE, BR>DR, low NI -- developed country
static population
BR/DR are both declining, longer LE, NI is close to 0%
declining population
DR exeeds BR, LE is long, negative NI (population shrinks over time)
formular DR
DR= young+ old dependants/labour force *100
exponential growth
rapid growth over a short period of time
stage 1
high stationary stage
high stationary
high BR and DR, tottal population is low
stage 2
early expanding stage
early expanding stage
BR remains high with a slow decrease, DR decreases quickly
stage 3
late expansion stage
late expansion phase
DR stabilizes at a low level, BR continues to drop but remains higher than DR, total population levels out as growth rate decreses
stage 4
low stationary phase
low stationary phase
BR and DR stablilize to a low level, total population remains stationary but high
fivth stage?
high economical developed countries as BR<DR (declining population)