东北地区交通优势度演变格局及影响机制
孙宏日, 刘艳军, 周国磊

The spatiotemporal differentiation and mechanisms of traffic dominance in Northeast China
SUN Hongri, LIU Yanjun, ZHOU Guolei
图4 交通优势度各指标变异系数及变化率
Fig. 4 CV and change rate of traffic dominance