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A Study on the Gradient Law of Soil Quality of Cultivated Field in Nong’an County Supported by GIS
辛士颖, 李志洪, 于磊, 赵传拓, 矫丽娜, 殷程程, 朱喜君, 张大军, 游国祥 and 谷伟
Chinese Agricultural Science Bulletin . 2014, (35): 149 -153 .  DOI: 10.11924/j.issn.1000-6850.2014-0749