Wu Yupeng 1,2)  Yun Wenju 2)  Zhao Ye 1). DEVELOPMENT AND APPLICATION ON THE INFORMATION SYSTEM OF AGRICULTURAL LAND CLASSIFICATION AND GRADATION :A CASE FOR HUNAN PROVINCE[J]. Journal of Beijing Normal University(Natural Science), 2006, 42(4): 415-418.
Citation: Wu Yupeng 1,2)  Yun Wenju 2)  Zhao Ye 1). DEVELOPMENT AND APPLICATION ON THE INFORMATION SYSTEM OF AGRICULTURAL LAND CLASSIFICATION AND GRADATION :A CASE FOR HUNAN PROVINCE[J]. Journal of Beijing Normal University(Natural Science), 2006, 42(4): 415-418.

DEVELOPMENT AND APPLICATION ON THE INFORMATION SYSTEM OF AGRICULTURAL LAND CLASSIFICATION AND GRADATION :A CASE FOR HUNAN PROVINCE

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