民勤县经济发展与生态环境的定量关系研究
张惠1, 张志强3

Studies on the Quantitative Relation Between Economic Development and Ecological Environment of Minqin County
Zhang Hui1, 2, Zhang Zhiqiang3
图1 人均生态足迹、生态承载力及生态赤字变化趋势
Fig.1 The per capita ecological footprint EF, ecological carrying capacity EC and ecological deficit ED