近20年中国粮食生产变化特征及其对区域粮食供需格局的影响
刘正佳1,2,3(
), 钟会民1,2, 李裕瑞1,2, 文琦4(), 刘雪琦5, 简钰清6
), 钟会民1,2, 李裕瑞1,2, 文琦4(), 刘雪琦5, 简钰清6
Change in grain production in China and its impacts on spatial supply and demand distributions in recent two decades
LIU Zheng-jia1,2,3(), ZHONG Hui-min1,2, LI Yu-rui1,2, WEN Qi4(), LIU Xue-qi5, JIAN Yu-qing6
), ZHONG Hui-min1,2, LI Yu-rui1,2, WEN Qi4(), LIU Xue-qi5, JIAN Yu-qing6
图2. Y 1999-2003和Y 2014-2018两个时段全国/南方/北方主要粮食作物产量
Fig. 2. Yield changes of five-type crops in two typical periods Y1999-2003 and Y2014-2018
