人口学是研究和了解人类社会的一门重要学问,人口史学则是研究人口学的基础,成为整个历史学以及社会学的一个重要组成部分。中国在人口史学领域里,得天独厚,“因为中国户口资料时间跨度之长世界第一,涉及地域之广世界第一,遗留人口数据和其他人口资料之丰富世界第一。”但是也有不利之处,就 Demography is an important study and understanding of human society. Demography is the basis for studying demography. It has become an important part of the entire history and sociology. China is uniquely endowed in the field of population historians because “China accounts for the first time in the world in terms of time span and covers the first in the world in terms of geographic area, legacy population data and other demographic information.” But there are also disadvantages, on