1999-2007 年中国粮食安全的关键影响因素
宋小青, 欧阳竹
Key Influencing Factors of Food Security Guarantee in China during 1999-2007
SONG Xiaoqing, OUYANG Zhu
地理学报 . 2012, (6): 793 -803 .  DOI: 10.11821/xb201206007