Population And The Environment Flashcards
What did Hans Rosling say about birth rate
Low child survival rates due to living conditions but over time will increase due to development
How can relief impact population
Infrastructure flood risk and transport
eg: China yangtze basin is low lying but Himalayas is high
How can climate impact population
Disease flood risk and droughts
Eg: Sahara desert or Germany
How can vegetation impact population
Infrastructure construction crops transport
How can soils impact population
Agriculture
Eg: Nile basin in Egypt is densely populated
How does water Supply impact population
Can or can’t support
Eg: Sahara desert cant
How can geology and other resources impact population
Lack of wealth
Economic development
Eg Niger delta in Nigeria has gold
Niger case study facts: where does it rank with lowest HDI, fertility rate?rain?
In the top ten, 7 per woman, received little rain suffers from droughts
What 5 things impact population change
1) strength of economy (healthcare etc)
2) climate (food production etc)
3) soils (agricultural output)
4) water supply (hydration and sanitation)
5) geology ( tertiary industries)
Why do people migrate
Fertile soils, resource abundance
What is green production
Increase in high yielding crop technology
Why are areas like Africa malnourished
Relient in ability to produce enough food
Commercial farming
Majority silt and income provides livelihood
Subsistence farming
Most is consumed by landowner or farm workers
Intensive farming
High levels of inputs per unit area of land
Extensive farming
Over large area with fewer capital or labour inputs
Organic farming
No synthetic fertilisers
What are four factors that can have a short term impact on productivity
Weather
animal disease
Policy interventions
Economic conditions
Where are polar climates
Northern hemisphere
Where are tropical monsoon climates
Along equator
Characteristics of polar climate
Below 250mm rain a year
Who is Tim Meyers
Farmer in Alaska who spread salmon slurry to fertilise soil and used poly tunnels and raised beds to mitigate low temps
How do humans depend on the climate in tropical monsoon climates
Rice grows in flooded fields
India
Labour intensive
Weak monsoon rain means crop failure so less production and exports
Less food security
How does climate change impact TMC
Increasing unpredictability, amount of rainfall meaning it’s difficult for farmers to plan
