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Main Crops Structural Change and Its Climate Background in Gansu Province during the Past Two Decades
WANG He-ling, WANG Run-yuan, ZHANG Qiang, LIU De-xiang, PU Jin-yong
JOURNAL OF NATURAL RESOURCES . 2012, (3): 413 -421 .  DOI: 10.11849/zrzyxb.2012.03.007