And in many developed countries, declining fertility and working-age populations have led to rising demand for workers from abroad to sustain national economies.
她指出,在过去三年中,生育率下降主要发生在30岁以下的妇女身上。
She noted that fertility declines over the past three years have occurred mostly among women under 30.
中国的生育率下降发生作为进入社会和经济改革面对的国家。
China's fertility decline occurred as the country entered the face of social and economic reforms.
年至1995年,生育率下降占发达国家和发展中国家人均产出增长的约20%,促进了减贫。
Declining fertility had accounted for about 20 per cent of per capita output growth in both developed and developing countries between 1960 and 1995 and had contributed to poverty reduction.
除此之外,然而,由于生育率下降到接近替换水平,印度人口正在走向老龄化。
However, due to fertility declines to near replacement levels, India's population is also ageing.
事实上,在不久的将来,以下三个因素将推动撒哈拉以南非洲地区的生育率下降。
Indeed, three factors are expected to drive fertility decline in sub-Saharan Africa in the near future.
此外,1990年代的研究表明,生育率下降使人口年龄分布发生变化,有助于加快经济成长。
In addition, research carried out during the 1990s has shown that changes in the age distribution of a population resulting from declining fertility can help accelerate economic growth.
东欧的生育率下降特别明显,总生育率从2.1胎降至1.4胎,亦即下降三分之一以上(表2)。
Particularly steep fertility declines took place in Eastern Europe, where TFR fell from 2.1 to 1.4, or by more than one third(table 2).
在生育率下降一开始就处于较高发展水平的国家生育率下降的速度最快。
The most rapid declines in fertility occurred in countries that had relatively high levels of development at the onset of fertility decline.
即是说,目前大约有20亿个孩子,由于生育率下降,这个数字不会再刷新了。
That is, about 2 billion children are alive today, and there will never be more than that because of declining fertility.
但是,如果通过生育率下降小于假设,世界人口到本世纪结束莫非增长大约16.5十亿。
However, if fertility declines by less than assumed, the world population could grow to about 16.5 billion by the end of the century.
但这一新闻显示,即使美国也无法逃避生育率下降的必然结果。
But the news shows that even the U.S. can't escape the inevitability of fertility decline.
生育率下降、寿命延长和死亡率下降等因素共同促成亚洲老龄化的快速步伐,也给各国政府带来许多麻烦.
Declining fertility, increased longevity, and falling mortality have combined to cause Asia's rapid pace of aging, giving governments plenty of headaches.
人们一直在辩论是有成效的发展导致生育率下降,还是生育率下降促进了发展。
There has long been a debate about whether successful development leads to fertility decline or fertility decline fosters development.
RobertIvanGal接着补充说,人口老龄化是两个因素的结合:寿命延长和生育率下降。
Robert Ivan Gal went on to add that population aging is the combination of two factors: longer life and declining fertility.
证据表明,这两种言论都有道理,因为生育率下降和发展之间存在重要的反馈机制。
The evidence indicates that both statements have validity because there are important feedback mechanisms between fertility decline and development.
期刊《联合国人口简讯,高生育率国家的生育率下降前景》。
Population Bulletin of the United Nations, Prospects for Fertility Decline in High Fertility Countries.
生育率下降和寿命延长所产生的人口结构变化的一个必然结果是人口老龄化。
An inevitable consequence of demographic changes resulting from fertility decline and increased longevity is population ageing.
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