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11 1992—2018年中国农作物种植面积占比变化
Fig. 11 Changes of crops planting area proportion in China, 1992-2018