引用本文: | 刘诚, 刘俊昌, . 我国退耕还林政策的实施对粮食安全的影响[J]. 北京林业大学学报(社会科学版), 2007, 6(4): 42-47. |
Citation: | LIU Cheng, LIU Jun_chang, . Influences of Grain for Green Project on Food Security in China[J]. Journal of Beijing Forestry University (Social Science), 2007, 6(4): 42-47. |