TY - GEOGRAPHICAL RESEARCH A1 - LIU Zhen, QI Wei, QI Honggang, LIU Shenghe T1 - The evolution of regional population decline and its driving factors at the county level in China from 1990 to 2015 Y1 - 2020-09-20 00:00:00.0 JF - GEOGRAPHICAL RESEARCH JO - GEOGRAPHICAL RESEARCH SP - 1565 EP - 1579 VL - 39 IS - 7 UR - {https://www.dlyj.ac.cn/EN/10.11821/dlyj020190599} N1 - 10.11821/dlyj020190599 ER -