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封志明, 杨艳昭, 张晶, 王秀芬
A GIS Based Study on the Grain Productivity and Potential Yield Increase at Multi-levels in China
FENG Zhi-ming, YANG Yan-zhao, ZHANG Jing, WANG Xiu-fen
自然资源学报 . 2007, (5): 747 -755 .  DOI: 10.11849/zrzyxb.2007.05.009