环境约束下的粮食主产区耕地利用效率时空演变特征
Publisher: 国家哲学社会科学学术期刊数据库
E-ISSN: 1000-8462|37|12|163-171
ISSN: 1000-8462
Source: 经济地理, Vol.37, Iss.12, 2017-01, pp. : 163-171
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Abstract