中国农产品贸易结构演化及对粮食安全的影响
王念, 程昌秀, 林耿

Evolving agricultural trade structure and its impact on food security in China
WANG Nian, CHENG Changxiu, LIN Geng
图2 1992—2020年中国农产品可比净出口指数箱线图
Fig. 2 Boxplot of China's agricultural normalized trade balance index in 1992-2020