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半个多世纪以来,由于医疗、营养和公共卫生等技术的进步,使得死亡率下降,国人的平均寿命逐年提升;而节育观念的推展也使得生育率逐年下降。在上述因素的共同作用下,1999年我国正式进入老龄化社会。由于我国人口基数大,这样在总人口中,老龄化人口比例必将增大,年轻人比例下降。经过人口学家测算,21世纪,我国人口老化速度将居全球第一。
For more than half a century, because of advances in technologies such as medicine, nutrition and public health, the death rate has dropped and the average life expectancy of people has been rising year by year. The promotion of birth control concept has also led to the declining birth rate. Under the joint action of the above factors, in 1999 China officially entered an aging society. Due to the large population base in our country, the proportion of the aging population in this total population will surely increase and the proportion of young people will drop. After demographers estimated that in the 21st century, the population aging rate in China will rank first in the world.