全球粮食贸易网络演变及其驱动因素解析
管靖, 宋周莺, 刘卫东

Change of the global grain trade network and its driving factors
GUAN Jing, SONG Zhouying, LIU Weidong
图3 1988—2018年各大洲粮食贸易网络弦图
注:图中数据为贸易规模(t)。
Fig.3 The chord diagram of continental grain trade network during 1988-2018