300英雄张飞觉醒:关于人口密度的英语文章

Human population density
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For humans, population density is the number of persons per unit of area (which may include or exclude inland water), though it may also be expressed in relation to habitable, inhabited, productive (or potentially productive) or cultivated area.

Commonly this may be calculated for a county, city, country or the entire world. In the country articles the density is based on land area. However, the list_of_countries_by_population_density is based on total area, including inland water.

Several of the highest-density territories in the world are very small city-states, micronations or dependencies. These territories share a relatively small area and an exceptionally high urbanization level, with an economically specialized city population drawing also on rural resources outside the area, illustrating the difference between high population density and overpopulation.

The most densely populated large state is Bangladesh, where 134 million people live in a highly agricultural area around the lower Ganges river, with a national population density in excess of 900 persons per square kilometre. The Indonesian island of Java has a similar density, with 114 million people, resulting in about 856 people per square kilometre. Overall world_population density presently averages 42 people per square kilometre.

Cities with exceptionally high population densities are often considered to be overpopulated, though the extent to which this is the case depends on factors like quality of housing and infrastructure or access to resources. Most of the largest densely-populated cities are in southern and eastern Asia, though Cairo and Lagos in Africa also fall into the category.

City population is however, heavily dependent on the definition used for the urban area: densities will be far higher for the central municipality than when more recently-developed and as yet administratively unincorporated suburbs are included, as in the concepts of agglomeration or metropolitan_area, the latter including sometimes neighbouring cities.

我精力有限，不可能给你整篇文章，但我会给你写词组，仅供参考
population density 人口密度
census 人口普查
statistical result 统计结果
以后又不会的句子我可以帮你翻译。