factors effecting population (physical environment and development processes)

what is a parameter

a measurable factor

give example of population parameters

distribution, density, numbers, change

what are the two main factors that affect population

physical environmental factors and development processes

how does the climate affect population

• dictates how many people can be supported in an area

• affects agriculture as crops need certain conditions to grow, and food is needed to support a population

• affects the incidence of disease, as some diseases thrive in certain climates, which affects the population

how does soil affect a population

• the water content, nutritional content, and overall quality of the soil affects agricultural productivity

how do natural resources affect population

• clean water supply is needed for hygiene, sanitation, agriculture, and drinking.

• before there were means of transporting natural resources, materials for shelter, fuel etc. has to be sourced locally.

• populations cannot be supported without access to these important resources

what is a development process defined as

the process of society advancing over time

how can development processes affect a population

• provides resources to support a larger population

• social developments create new opportunities for a population

give some examples of developments in food supply

• Neolithic revolution

• The Green Revolution

what is the Neolithic revolution and how did it develop food supply

• 12,000 years ago

• a shift from mobile hunter-tethered populations to agricultural communities.

• birth rates and fertility rates rose as women no longer has to wait to have more children: in hunter gatherer communities it was difficult to have many dependants due to the mobile lifestyle.

• agriculture could also feed denser communities, and although more intensive and nutritional standards were lower, these communities had a more stable food supply.

• overall, there were baby booms and population growth rates quickened rapidly

what was the green revolution and how did it develop food supply

• the process of using technology and more efficient farming supplies/ practices in agriculture to maximise yields in the 50s and 60s.

• it overall created more food, especially in developing countries, meaning a larger population could be sustained.

• an estimated 1 billion people are able to be fed as a result of the Green revolution

how has the Industrial Revolution had an effect on population

• beginning in the mid-1700s, the Industrial Revolution was the transition from majorly labour-intensive industry to technology manufacturing processes, including the use of machinery, fossil fuels, and factories.

• the process revolutionised agriculture, the manufacture of goods, transportation, medicine and other aspects of society, overall making life less labour intensive for many people.

• industrialisation caused world population growth rates to increase

• at the start of the industrial revolution, the population grew by 57%, and 100 years on the population grew by 100%