中国老年地理学研究进展

许昕, 赵媛, 张新林, 曾通刚, 夏四友, 谢倩倩, 孙琪

Research progress and prospects of Chinese geriatric geography

Xin XU, Yuan ZHAO, Xinlin ZHANG, Tonggang ZENG, Siyou XIA, Qianqian XIE, Qi SUN

图4 “人口老龄化时空格局及驱动机制”关键词共现知识图谱

Fig.4 Cluster knowledge map of spatiotemporal patterns and driving mechanism of population aging in China based on keywords