1949年前后大批大陆青壮年男性移民迁入台湾,导致台湾部分年龄组的人口性别结构严重失衡,给台湾的社会发展造成严重的后果,而人口的自然变动对缓解台湾过高的性别比起到重要的作用。Around 1949 many young male adults moved to Taiwan from the main land. It has resulted in serious unbalance of population sex structure in some age group and awful consequence to Taiwan's social development. But the natural population alteration has had an effect on alleviating Taiwan's exorbitant sex ratio
