Population Density People concentrated into certain parts make

Population Density • People concentrated into certain parts make them crowded. Crowded areas have a high population density. Other areas have relatively few people living there and these are said to be sparsely populated e. g. the Sahara Desert in north Africa. These areas are said to have a low population density.

World Population Density- Choropleth Map (darker colours = higher population densities)

Dot Distribution Map. Africa

Highlands/Rainforests Penang Kuala Lumpur Singapore

Auckland Tasman Sea Wellington Christchurch Dunedin Pacific Ocean

Less than 700 mm per year Over 1700 mm per year 700 -1700 mm per year

Factors Influencing Population Distribution and Density Active volcanoes, mountains, high Physical plateau, low Landscape temps and pressures e. g. Himalayas Flat lowland plains e. g. N European Plain

Factors Influencing Population Distribution and Density Drought, high humidity, low temperatures. Short growing season Climate Evenly distributed rainfall, no temperature extremes, lengthy growing season

Factors Influencing Population Distribution and Density Sparse deserts, dense coniferous and Vegetation rainforests e. g. Amazon Grassland e. g. plains in the USA

Factors Influencing Population Distribution and Density Infertile soils, leached, erosion, mountainous e. g. Tundra Soils Deep humus filled or volcanic soils. Fertile river deposited alluvium or silt

Factors Influencing Population Distribution and Density Unreliable or lack of rainfall, supply of clean water and technology e. g. Sahara Desert Water Supply reliableeither rainfall or technology to provide reservoirs e. g. Europe

Factors Influencing Population Distribution and Density Malaria in Central Africa Disease and pests Few natural hazards, money/medical expertise to eradicate initial hazards UK

Factors Influencing Population Distribution and Density Areas devoid of minerals or easily obtainable energy sources resources Large mineral deposits or energy supplies (Ruhr, N. Germany)

Factors Influencing Population Distribution and Density Areas Natural difficult to ports, easy to construct or communications construct maintain transport links e. g. systems e. g. Norway Afghanistan

Factors Influencing Population Distribution and Density Areas with less developed economic subsistence economies e. g. tundra, rainforests, desert fringes Intensive farming due to higher technology result in larger profit e. g. Japan

Factors Influencing Population Distribution and Density Areas lacking in state funding where development is not encouraged political Funding to create new towns (Brasilia) or opening ‘pioneer’ lands - government