1、[社科]人口不足
... 人口过剩overpopulation 人口不足underpopulation 人口增殖population reproduction ...
2、人口过稀
... 无意识，不自觉，失知觉 Unconscious 人口过稀 Underpopulation 失业 Unemployment ...
underpopulation area人口稀少地区
underpopulation region人口稀少区
underpopulation in mountain village山村人口稀少化