人口規模 size of population

人口規模の格差をならす even out discrepancy in population

人口急増 population upsurge

人口急増の対処法 answer to the population explosion

人口急増地区 impacted area

人口協議会 【組織】Population Council〔ニューヨーク市〕

人口形態 population pattern

人口計画 population program

人口研究 population study

人口減少 decrease in population●falling population●population decrease

人口減少に苦しむ suffer from depopulation

人口減少に取り組む deal with a dwindling population

人口減少に直面する face a declining population

人口減少社会 depopulating society

人口公害 popullution

人口構成 composition of population●demographic composition●population characteristics●population composition●population makeup

人口構成の継続的高齢化 successive aging of population structures

人口構成の変化 changes in population composition

人口構造 age-sex structure●composition of population●demographic structure●population characteristics●population structure●structure of population