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PDF(820 KB)
PDF(820 KB)
干旱区农业生态经济系统的能值分析——以黑河流域中游张掖地区为例
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}Emergy Amalysis of Agricultural Eco-Economic System in Arid Region of Northwest China——A Case Study of Zhangye Prefecture in Heihe River
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