Population density
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+ | "In the days before [[Louis Pasteur|Pasteur]] [[World population|man's population]] was maintained approximately constant from generation to generation by a [[cybernetic]] system in which the principal [[feedback]] element at the upper limit was [[disease]]. The [[crowd]]-diseases — [[smallpox]], [[cholera]], [[Typhoid fever|typhoid]], [[plague]], etc. — are, by the ecologist, labeled "[[Population density|density-dependent factors]]," whose effectiveness in reducing [[population]] is a power function of the density of the population. No growth of population could get out of hand as long as the crowd-diseases were unconquered, which means that man did not have to sit in judgment on man, to decide who should have a cover at Nature’s feast and who should not." --''[[Nature and Man's Fate]]'' (1965) by [[Garrett Hardin]] | ||
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+ | '''Population density''' (in agriculture '''standing stock''' and [[standing crop]]) is a measurement of [[population]] per unit area or unit volume. It is frequently applied to [[living organisms]], and particularly to [[human]]s. It is a key geographic term. | ||
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+ | == Other methods of measurement == | ||
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+ | While arithmetic density is the most common way of measuring population density, several other methods have been developed which aim to provide a more accurate measure of population density over a specific area. | ||
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+ | * '''Arithmetic density''': The total number of people / area of land (measured in km<sup>2</sup> or sq miles). | ||
+ | * '''[[Physiological density]]''': The total population / area of [[arable land]]. | ||
+ | * '''Agricultural density''': The total ''rural'' population / area of [[arable land]]. | ||
+ | * '''Residential density''' : The number of people living in an urban area / area of residential land. | ||
+ | * '''[[Urban density]]''' : The number of people inhabiting an urban area / total area of urban land. | ||
+ | * '''Ecological optimum''': The density of population which can be supported by the natural resources. | ||
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+ | == See also == | ||
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+ | * [[Demography]] | ||
+ | * [[Human geography]] | ||
+ | * [[Idealized population]] | ||
+ | * [[Optimum population]] | ||
+ | * [[Population bottleneck]] | ||
+ | * [[Population genetics]] | ||
+ | * [[Population health]] | ||
+ | * [[Population momentum]] | ||
+ | * [[Population pyramid]] | ||
+ | * [[Rural transport problem]] | ||
+ | * [[Small population size]] | ||
+ | * [[Distance sampling]] | ||
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+ | === Lists of city density and other lists === | ||
+ | |||
+ | * [[List of cities proper by population density|List of cities by population density]] | ||
+ | * [[List of European cities proper by population density]] | ||
+ | * [[List of islands by population density]] | ||
+ | * [[List of sovereign states and dependent territories by population density|List of countries by population density]] | ||
+ | * [[List of U.S. states by population density]] | ||
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Current revision
"In the days before Pasteur man's population was maintained approximately constant from generation to generation by a cybernetic system in which the principal feedback element at the upper limit was disease. The crowd-diseases — smallpox, cholera, typhoid, plague, etc. — are, by the ecologist, labeled "density-dependent factors," whose effectiveness in reducing population is a power function of the density of the population. No growth of population could get out of hand as long as the crowd-diseases were unconquered, which means that man did not have to sit in judgment on man, to decide who should have a cover at Nature’s feast and who should not." --Nature and Man's Fate (1965) by Garrett Hardin |
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Population density (in agriculture standing stock and standing crop) is a measurement of population per unit area or unit volume. It is frequently applied to living organisms, and particularly to humans. It is a key geographic term.
Other methods of measurement
While arithmetic density is the most common way of measuring population density, several other methods have been developed which aim to provide a more accurate measure of population density over a specific area.
- Arithmetic density: The total number of people / area of land (measured in km2 or sq miles).
- Physiological density: The total population / area of arable land.
- Agricultural density: The total rural population / area of arable land.
- Residential density : The number of people living in an urban area / area of residential land.
- Urban density : The number of people inhabiting an urban area / total area of urban land.
- Ecological optimum: The density of population which can be supported by the natural resources.
See also
- Demography
- Human geography
- Idealized population
- Optimum population
- Population bottleneck
- Population genetics
- Population health
- Population momentum
- Population pyramid
- Rural transport problem
- Small population size
- Distance sampling
Lists of city density and other lists
- List of cities by population density
- List of European cities proper by population density
- List of islands by population density
- List of countries by population density
- List of U.S. states by population density