21世纪初中国主要余粮区的空间格局特征
殷培红, 方修琦, 田青, 马玉玲
Distribution and Regional Difference of Main Output Regions in Grain Production in China in the Early 21st Century
YIN Peihong, FANG Xiuqi, TIAN Qing, MA Yuling
地理学报
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2006, (2): 190
-198
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DOI: 10.11821/xb200602008