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GIS支持下的区域中低产耕地评价与改良利用对策
黄河
EVALUATION OF REGIONAL MIDDLE AND LOW PRODUCTION CROPLAND AND THE COUNTERMEASURE OF IMPROVEMENT AND USE
Huang He
中国农学通报 . 2004, (1): 168 -168 .  DOI: 10.11924/j.issn.1000-6850.0401168