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单词 Replacement rate
释义

Replacement rate

原声例句
经济学人(汇总)

America even managed to reach the replacement rate of 2.1, meaning its population was sustaining itself, without taking migration into account.

美国甚至达到2.1的人口置换率,这意味着,在不考虑移民的情况下,该国人口基本保持不变。

经济学人-国际

The pattern of swift, uninterrupted decline is now taken as the norm: the UN uses it to project a worldwide convergence towards the replacement rate of fertility (2.1, the rate at which a population stabilises in the long term) .

现在,生育率快速连续的下降趋势已被人们视为正常:联合国用这种趋势来表示世界性趋同的人口替换率(2.1,人口长期稳定时的人口增长速率)。

中文百科

总和生育率 Total fertility rate

(重定向自Replacement rate)
国家和地区生育率地图。数据来源:中情局《世界概况》2014年
总生育率vs平均国民生产总值的对应国家图表, 2009.只有超过五百万人口的国家才会被标记, 来源:CIA世界概况

总和生育率英语:total fertility rate,简称TFR),有时也简称生育率,反映妇女一生中生育子女的总数。一般来讲总和生育率至少要达到2.1,才能完成世代更替,但许多国家的财税、社会及福利制度是创建在生育率更高(人口成长)才能维持的基础上。

目前世界的总和生育率约为2.5。2010年人口普查没有提供中国大陆的总和生育率数据, 有人算出仅为1.18。但国外一般采取更合理的数字1.55。新加坡、香港、澳门等华人国家和地区的总和生育率也都低于1.2,为世界最低水平。

英语百科

Total fertility rate 总和生育率

(重定向自Replacement rate)
A world map showing countries by total fertility rate (TFR), according to the CIA World Factbook's 2015 data.




  7–8 children
  6–7 children
  5–6 children
  4–5 children


  3–4 children
  2–3 children
  1–2 children
  0–1 children
A world map showing countries by total fertility rate (TFR), according to World Population Prospects 2015 by UN.
Total fertility rate rate by region
Total fertility rate rate for selected countries

The total fertility rate (TFR), sometimes also called the fertility rate, period total fertility rate (PTFR) or total period fertility rate (TPFR) of a population is the average number of children that would be born to a woman over her lifetime if:

It is obtained by summing the single-year age-specific rates at a given time.

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更新时间:2025/6/20 10:02:20