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4YANG Long-fei1,ZHAO Qiao-gui1,2,YANG Zi-sheng1 1.Institute of Land & Resources and Sustainable Development,Yunnan University of Finance and Economics,Kunming 650221,China,2.Department of Land Resources of Yunnan Province,Kunming 650224,China.Prediction on the Farmland Demand of Yunnan Province in 2020 Based on Food Security[J].Asian Agricultural Research,2010,2(3):58-61.
