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You are here: Home / Environmental Engineering 1 / Population density | Factors affecting population density

Population density | Factors affecting population density

August 30, 2012 by admin Leave a Comment

Population density 

It is defined as the number of persons per unit area.

It is commonly represented as people per unit area, which is derived simply by dividing

total area population / unit land area

Population density can be computed for any area if we know the area and the population. The population density of cities, states, entire continents, and even the world can be computed.

The tiny country of Monaco has the world’s highest population density. With an area of 3/4 of a square mile and a total population of 32,000, Monaco has a density of almost 43,000 people per square mile.

Mongolia is the world’s least densely populated country with only 4.3 people per square mile. Australia is a close second with 6.4 people per square mile.

The value for Population density (people per sq. km of land area) in Pakistan was 225.19 as of 2010.

Population density is decided according to the land use. For example in Residential area for single family having large plots, it is 12-37 persons per hectare. For single family having small plots, it is 35-85 persons per hectare.

For multiple families population density is 85-245 persons per hectare.  In apartment buildings such as flats, it is 245-2450 per hectare.

In industrial area, population density is 10-35 persons per hectare.

In commercial area, it is 10-85 persons per hectare.

Factors affecting Population density

The factors that tend to produce low population densities are

  • Extreme climate – too cold, hot, wet or dry
  • Extreme relief – too high and too steep
  • Extreme remoteness – places that are difficult to reach
  • Infertile land – need to have extensive (very large) farms

The factors that can produce a high population density are

  • Moderate climate
  • Fertile farming land – many, small farms able to support a large population
  • Mineral resources – mines produce jobs, and provide raw materials for other industries
  • Low land – with gentle slopes or flat ground
  • Good water supply
  • Wealthier areas – people will move to where the jobs and money are found

Reference

Population density. High and low population density

 Pakistan – Population density

Population Density By Matt Rosenberg, About.com Guide

 

Filed Under: Environmental Engineering 1

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