PDF(445 KB)
PDF(445 KB)
PDF(445 KB)
陇东黄土高原农业生态效率的时空演变分析——以庆阳市为例
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}Spatio-temporal Evolution of Agricultural Eco-efficiency in Loess Plateau of East Gansu Province: A Case Study of Qingyang City
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