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Ecosystem service value of cultivated land and its spatial relationship with regional economic development in Gansu Province based on improved equivalent
ZHAO Hong-yan, CHEN Ying, YANG Jie, PEI Ting-ting
干旱区地理 . 2018, (4): 851 -858 .  DOI: 10.12118/j.issn.1000-6060.2018.04.22