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- [1] Evaluation for Use Efficiency of Agricultural Resources in Grain Production:A Case Study of Changshu,Taihe and Ansai in China[J]. SONG Wei1,2,CHEN Baiming1,CHEN Xiwei1,2 (1. Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101, China;2. Gradate University of the Chinese Academy of Sciences,Beijing 100049,China).Chinese Geographical Science. 2009(01)