1949年以来东北地区行政区划演变格局与成因分析
朱建华, 修春亮

The Evolutionary Pattern and Contributing Factor of Administrative Division Adjustment in Northeast China Since 1949
Jianhua Zhu, Chunliang Xiu
图2 东北地区地级政区的演变格局(1949~2001年)
Fig.2 The evolution pattern of prefecture-level administrative regions in Northeast China (1949-2001)