Nüfusu kentsel yerleşimler fazla 1 milyon (% Toplam nüfus) Kaynak: Birleşmiş Milletler, Dünya Kentleşme Beklentileri.

Nüfusu kentsel yerleşimler fazla 1 milyon (% Toplam nüfus)


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Uzun açıklama: Bir milyondan fazla kentsel yerleşimler nüfus bir ülkenin nüfus oranı 2000 yılında bir milyondan fazla bir nüfusa sahipti metropollerde yaşıyor.

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Yöntem: Urban population refers to people living in urban areas as defined by national statistical offices. The indicator is calculated using World Bank population estimates and urban ratios from the United Nations World Urbanization Prospects. The United Nations Population Division and other agencies provide current population estimates for developing countries that lack recent census data and pre- and post-census estimates for countries with census data. The cohort component method - a standard method for estimating and projecting population - requires fertility, mortality, and net migration data, often collected from sample surveys, which can be small or limited in coverage. Population estimates are from demographic modeling and so are susceptible to biases and errors from shortcomings in the model and in the data. Because the five-year age group is the cohort unit and five-year period data are used, interpolations to obtain annual data or single age structure may not reflect actual events or age composition. n Countries differ in the way they classify population as urban or rural. Typically, a community or settlement with a population of 2,000 or more is considered urban, but national definitions are most commonly based on size of locality. Eurostat defines urban areas as clusters of contiguous grid cells of 1 km2 with a density of at least 300 inhabitants per km2 and a minimum population of 5,000. Further it defines high-density cluster as contiguous grid cells of 1 km2 with a density of at least 1,500 inhabitants per km2 and a minimum population of 50,000. n The population of a city or metropolitan area depends on the boundaries chosen. For example, in 1990 Beijing, China, contained 2.3 million people in 87 square kilometers of inner city and 5.4 million in 158 square kilometers of core city. The population of inner city and inner suburban districts was 6.3 million and that of inner city, inner and outer suburban districts, and inner and outer counties was 10.8 million. (Most countries use the last definition.)

Kaynak: Birleşmiş Milletler, Dünya Kentleşme Beklentileri.

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Üst başlık: Çevre: Yoğunluğu ve kentleşme