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“一带一路”国家粮食贸易网络空间格局及其演化机制
陈艺文1,李二玲1,2,*()
Spatial pattern and evolution of cereal trade networks among the Belt and Road countries
CHEN Yiwen1,LI Erling1,2,*()

图3. 1993—2016年“一带一路”国家粮食贸易网络示意图
注:不同节点的颜色代表该节点所属的区域,线段的颜色代表同一颜色节点所发出的贸易流,线段的粗细代表贸易额的大小。

Fig.3. National cereal trade network of the Belt and Road region, 1993-2016