population distribution

• physical factors effecting population

  • Climate
  • Soil
  • Relief

  Physical factors cannot be controlled
• human factors effecting population

  • Communications
  • Technology
  • Jobs
• methods of gathering population data. (census)

  • The most accurate method of population count.
  • Usually taken every 10 years.
  • each household is asked to complete a detailed questionnaire bout the number of people living in their home.
  • Households answer other questions on their social, economic and cultural background.
• methods of gathering population data (vital registration)

  • in many countries people must also register important events in their lives.
  • these are called vital registrations, and includes births, deaths, marriages, divorces and adoptions.
  • this provides the government with an up to date record of the population between each census.
• methods of gathering population data (sampling)

  • the Scottish household survey is a continuous survey based on a random sample of the population which is cheaper than carrying out a full census.
  • in china national population surveys have been conducted annually. with 1% of the population being asked to complete the form
• methods of gathering population data (government record)

  • governments also collect data as migration from visa application or the borders agency.
  • data from electrol roll and NHS records allows population data to be updated in between census collection.