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 square miles or square kilometers ). 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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